I believe that James Tobin suggested something similar many years ago.So where do we go from here? The only actor large enough to restore confidence in the US market is the US government. The current policy of quantitative easing by the Fed is a move in the right direction but it does not, as yet, go nearly far enough.
It is time for a greatly increased role for monetary policy through direct intervention of central banks in world stock markets to prevent bubbles and crashes. Central banks control interest rates by buying and selling securities on the open market.
A logical extension of this idea is to pick an indexed basket of securities: one candidate in the US might be the S&P 500, and to control its price by buying and selling blocks of shares on the open market.
Even the credible announcement that a policy of this kind was being considered should be enough to boost the markets and restore consumer and investor confidence in the real economy.
Critics will argue that this policy is dangerous socialist meddling. But I am not arguing that the government should pick winners and losers: only that it should stabilise a broad
basket of stocks. This policy would still allow poorly run firms to fail but it would not allow all firms to fail at the same time.
Wednesday, December 31, 2008
Open Market Operations in Equities
Tuesday, December 30, 2008
Elmendorf to CBO
Here is something about Doug that you won't see reported in most of the news stories: Many years ago, Doug was head section leader for Ec 10. Because of his broad experience teaching introductory economics, I once hired him and his wife Karen Dynan (now an economist at the Fed) to draft some of the end-of-chapter questions for the first edition of my favorite textbook. Many of those questions remain, sometimes in updated form, in the current edition. (Students may recall having to calculate the money supply in the imaginary economy of Elmendyn.)
Humor Session
The (first-ever!) American Economic Association humor session will take place Saturday Jan 3rd from 8-9 pm in the Hilton San Francisco (333 O'Farrell Street), rooms Golden Gate 1 and 2. The event is free and open to the public; Preston McAfee (CalTech) will be presiding, with speakers including Peter Orazem (Iowa State), Rob Oxoby (Univ of Calgary), and Yoram Bauman. There will also be an award for the funniest paper of 2008.
Sunday, December 28, 2008
Pigou in Congress
A most welcome addition to the membership. The club is chock full of nerdy policy wonks. We could use a few more elected officials.
Update: An oil executive joins as well.
Saturday, December 27, 2008
Lindsey on Stimulus
Sounds good to me.Permanent tax cuts offer a much better option. The incoming chairman of the Council of Economic Advisers, Christina Romer, has estimated that the macroeconomic benefits of tax cuts can be two to three times larger than common estimates of the benefits related to spending increases. The relative advantage of tax cuts over spending is even clearer when the recession is centered on the household balance sheet. Some relatively minor changes, like making the current 15 percent tax rate on dividends and capital gains permanent, would not only help household cash flow, but also put a floor under equity prices much as their introduction did in 2003. This would help protect against further wealth destruction and balance sheet deterioration.
But the centerpiece of any tax cut should be employment taxes: in particular, a permanent halving of the current 12.4 percent Social Security payroll tax on the first $106,800 of wages, split evenly between workers and employers. The direct revenue effect of that would be a bit under $400 billion per year, roughly in line with the present quantitative needs of the economy. It also meets our three tests of effective stimulus.
First, the funds would flow directly to households through higher take-home pay and indirectly through a reduction in the cost of employment. Economic studies conclude that the benefits of a reduction in the employer portion of the payroll tax are ultimately received by employees. But the immediate effect would be an improvement in the cash flow of credit-starved businesses (as well as being a marginal incentive to keep
employment up).Second, the funds would be extremely timely, with the benefits hitting the economy with the first paycheck after the plan was implemented.
Third, by lowering the taxation of labor, the plan would help produce a higher-employment recovery than would otherwise be the case. Since the tax cut should be permanent to have maximum effect, the biggest challenge would be how to make up for the lost revenue once the macroeconomic need for fiscal stimulus had passed. In the short run, effective fiscal stimulus requires that government revenue drop, thereby enriching the private sector, and with the Treasury making the Social Security trust fund whole by way of intergovernmental bookkeeping. Longer term, however, spending cuts or a new source of revenue would be needed.
Given the agenda of the incoming administration, the best source of such funds would be a greenhouse emissions tax. It would be a much more efficient way of achieving the desired environmental objectives of the administration than any of the regulatory or "cap and trade" ideas now being considered. Such programs have failed in Europe since they are so easily gamed. Unlike regulations or cap and trade, moreover, an emissions tax can be phased in and calibrated as macroeconomic conditions permitted, specifically as the unemployment rate declined.
Update: More Pigou Club endorsements here and here.
Friday, December 26, 2008
Backus on Spending Stimulus
Thanks, Dave, for sharing your views.Greg,
I was surprised to see you mentioned as the only stimulus skeptic the Obama team could find. If you'd like company, let me add my name to the list.
I'd label myself, if not a skeptic, then at least ambivalent. It's not that I'm convinced stimulus is a bad idea, but that economics isn't a precise science: we don't know for sure that a stimulus package will cure what ails us. Here are some reasons for doubt, and I'm sure you and your readers have others:
- Hard to do. It's not easy to spend large amounts of new money quickly. Harder still to do it in a way that creates good value for society and doesn't bring out the worst in our politicians. (I can hear Jon Stewart on the Daily Show: "Where's Ted Stevens when we need him?")
- Bad timing. Right now, most forecasts call for continued shrinkage in the first half of 2009, modest growth in the second half, when the stimulus starts to come online, and faster growth in 2010, when spending hits high gear. This is, of course, the classic argument against countercyclical fiscal policy: it's hard to get the timing right.
- Small multiplier. Let us say that for every dollar of extra government spending, GDP goes up m dollars, where "m" is the multiplier. Undergraduate textbooks, including your favorite, sometimes suggest m is large. The evidence is fuzzy, to be sure, but to me it suggests a multiplier around one, maybe smaller. Even stimulus cheerleader Paul Krugman only claims 1.1. If that's the case, the impact of government spending (say 700b over two years) is barely enough to reverse the decline in GDP we expect to see over the next two quarters.
- Long-term budget issues. I don't spend much time in Washington, but I thought the mainstream view among government economists was that our retirement and health-care programs were likely to bust the budget over the next 2-3 decades. Recent directors of the CBO under both Republican and Democratic Congresses have made this point, and I hope I wasn't the only one listening. The US is not Argentina, but it still seems a little incongruous to advocate massive increases in spending when the long-term problem is paying for spending already on the
books.- It's the financial system, stupid. Japan in the 1990s is a Rorshach test for macroeconomists, so I can't claim everyone sees this as I do. But my take (borrowed from Anil Kashyap) is that Japan demonstrated that the real issue in financial crises is the financial system. If we don't fix it, no amount of fiscal stimulus will make much difference. That's one of the reasons I'm optimistic about the US right now: unlike Japan, we faced our problems, ugly as they were, and have acted decisively to correct them.
What would I do? I'd prefer to remain in my comfortable office at NYU, but if forced to make a recommendation, I guess I'd say the following: Go ahead, spend a few hundred billion over the next two years; it may help, especially if the economy performs worse than we expect. But spend it on things that have clear social value. At the same time, try to make some progress on the long-term spending issues built into our current retirement and health-care systems. That won't be nearly as popular as spending money now, but it's an opportunity to show some real leadership. And make sure you keep your eyes on the financial system: if the banks don't recover, none of us will. Good luck!
Best,
Dave
A Question about Learning Economics
Three observations that, I hope, add up to an answer:Dear Prof Mankiw,
First time e-mailer, long time reader of the blog.
I'm currently a Sophomore at University of Wisconsin-Madison planning to major in Economics having just completed the intermediate Econ courses there. During my spare time, I love to do what most other students probably would consider crazy, and just read economics books no matter what the viewpoint of the author is. I had my first Economics courses in high school taught by a Friedman disciple, my Intermediate Micro by another very Chicago school economist, and my intermediate Macro taught by (from what I was able to judge) a Neo-Keynesian.
Every time I've gone into office hours with these professors, I've always come away with the attitude of "I can definitely see their point". I have never felt like they forced their beliefs on me, which is a good thing. I fully admit that I'm a young foolish college student, so whenever these professors or teachers talk to me, I'm usually pretty open to whatever they say. I've gotten into some very spirited debates with my Macro professor, but it's always been completely respectful and very thought-provoking.
So I guess my question, although loaded, is this: What advice would you give to a college undergrad being exposed to so many different ideologies at the same time? I can go from being told by my ECON 301 (Intermediate Micro) professor that we should, for example, let the banks fail and let the market do it's work, and I can see his point. I can then go talk to my ECON 302 (Intermediate Macro) professor and he will say that it's ludicrous to not do SOMETHING regarding the financial crisis, and I can also see his point.
I know there is never a set in stone answer for what economic should dictate,but would you say that the way you see Economics today was slowly cemented as you progressed in your studies?
Thanks again, love your blog, happy holidays.
-[name withheld]
1. The current economic environment is a particularly hard time to learn economics. There are a lot of topics about which economists agree, but the diagnosis and best remedy for the current economic downturn are not among them. It is therefore no surprise that your econ profs express disparate views about the appropriate policy in the current environment. Don't read too much into this fact. I bet there are many other topics about which these economists would come to similar conclusions. Ask them about rent control, or international trade, or Pigovian taxes, for instance, if you want to find broad areas of agreement.
2. You are lucky that you have professors with different viewpoints. Your job, as a budding economist, is to learn from all of them. Ideally, at the end of the day, you should be able to understand and appreciate (although not necessarily agree with) each point of view. You should try to construct in your mind a debate between your Friedmanite professor and your Keynesian professor. What points would each raise, and how would the other respond?
3. As you come to grips with these various points of view, you will be in a better position to judge which you find most cogent. But don't expect to reach unequivocal positions easily. In my view, it is best to consider all knowledge as tentative. The best scholars maintain an open-mindedness and humility about even their own core beliefs. Excessive conviction is often a sign of insufficient thought, which in turn may be derived from a certain pig-headedness. Intellectual maturity comes when you can maintain the right balance between informed belief and honest skepticism. You sound like you are on the right path.
Thursday, December 25, 2008
Wednesday, December 24, 2008
Tuesday, December 23, 2008
Monday, December 22, 2008
How Not to Stimulate the Economy
Case A: uses the money to give a lump-sum payment (such as a tax rebate) to Joe Average, who chooses to spend his free time sitting at home watching Mork and Mindy reruns.
Case B: uses the money to hire Joe to sit at home and watch Mork and Mindy reruns.
Case C: uses the money to hire Joe to sit at home and watch Family Feud reruns, which Joe does not enjoy quite as much as Mork and Mindy.
In all the cases, Joe will spend some of the money he gets on consumer goods and services, leading to a Keynesian multiplier. But those knock-on effects are the same in the three cases, so we can put those aside for now.
Let's begin by comparing cases A and B. These two scenarios are identical in terms of final allocations and economic welfare. Joe is doing the same thing, and all the money flows are the same. But note that the macroeconomic statistics would be different. In Case B, Joe is employed producing a government service. If we used standard data to compare Case B with Case A, Case B would show more hours worked and a higher Gross Domestic Product.
Now look at Case C. It has the same employment and GDP as Case B, but welfare is strictly lower. Joe is, after all, less happy watching Family Feud. Comparing Case C with Case A, therefore, we see greater employment, greater GDP, and lower welfare.
Usually, GDP is a reasonable proxy for economic well-being, so more is better, but that is not true in this example. Part of the problem here is that GDP includes government purchases at cost. If the government hires people to produce stuff that is worthless, that stuff is included in GDP just as much as if the government buys something valuable. When calculating GDP, the national income accountants do not pass judgment on the social utility of government spending. Anyone concerned with economic well-being has to go beyond thinking about GDP.
The moral of the story: If the government spends a fiscal stimulus package on goods and services without much public value (as in Case C), it could well stimulate the economy as measured by macroeconomic aggregates but leave the participants in the economy worse off (compared with a feasible alternative, Case A). Avoiding this trap requires that the government spend taxpayers dollars only those items that pass a strict cost-benefit test. That is hard to do quickly. Willy-nilly spending is a good way to stimulate the economy only if the outcome is judged by the wrong metric.
Sunday, December 21, 2008
Advice for the Generous
I doubted that I knew enough about the topic to offer a good answer, so I passed the question on to my Harvard colleague, development economist Michael Kremer. Here is his reply:Dear Dr. Mankiw,
As I draft my extensive Christmas list of unneeded items, my conscience calls me to add a favorite charity or two, which my family members could consider gifting in my name.
Still, I know that not all charities are as efficient (or proficient) at their giving. For example, I remember reading (in Easterly's White Man's Burden, I think) that there have been many less-than-perfect results in distributing free bed-nets, arguing that they are optimally delivered subsidized rather than free. While I think bed-nets are a great avenue to donate to the world's poor, there are many different organizations where someone can purchase them, and I, for one, have no idea who is the best at it.
Do you know any for market-friendly charitable-giving groups, who give bed-nets or anything else? If so, could you please post on your blog? (I think many students and other young people are interested in giving to national and international organizations but know little about how the money flows to the people.)
I hope my request isn't too vague. Happy Holidays!
Chris
Thanks to Chris for asking the question and to Michael for answering it. I hope this information helps direct some charitable giving in the right direction.Dear Greg,
Sure, I would be happy to make some recommendations.
If readers want to donate for nets, one good organization I have supported in the past is here. TamTam provides nets free at clinics. Personally I think this approach makes sense because charging dramatically reduces use, free distribution can help encourage mothers to come to antenatal clinics, and, like vaccines, insecticide treated nets can help interfere with disease transmission creating positive externalities. For some evidence on the first issue, see this paper.
One of the best buys out there is treating kids for worms. Two billion people have intestinal worms worldwide, including 400 million school-children. The medicine costs pennies per dose. Because the medicine is cheap and safe, but diagnosis is expensive, the World Health Organization recommends mass treatment in schools in areas of high prevalence, which can keep total costs per treated child to $0.25.
Treatment not only has medical benefits but helps kids stay in school longer. Ted Miguel and I estimate benefit/cost ratios of more than twenty to one in Kenya. Hoyt Bleakley estimates that the Rockefeller Foundation's deworming campaign in the US South in the early twentieth century added two years to average education in affected areas and that worms accounted for 20% of the income gap between the US North and South at the time.
Based on the evidence, several economists, including Esther Duflo, Kristin Forbes,and me, are involved in, and have donated to, a new group called Deworm the World. Information is available here. There is a donate button which explains how people can give.
Deworm the World will soon be a tax exempt 501(c)3 organization, but not before either the holidays or the end of the tax year. If readers are from the US and want a tax deduction, they can support Save the Children's school health efforts by clicking on the link above and going to the donate box, or if they want to more directly help Deworm the World, they can donate to Innovations for Poverty Action by going to this link and noting that the donation is for Deworm the World in the comment box.
Thanks for writing,
Michael
Saturday, December 20, 2008
Another Stimulus Spending Skeptic
I read your blog on a daily basis and I've noted your skepticism about the monstrous bailout package being considered by the incoming Obama administration. In reading all of the econblogs I can find, I'm struck by the lack of practical knowledge both there and within the circle of advisers Obama has assembled.
I work for the DoD and when the Department of Homeland Security was established,we helped them with many things, not the least of which was contracting. To make a long story short, you cannot juice up a government agency's budget by tens of billions (or in the case of the stimulus package, hundreds of billions) and expect them to be able to process the paperwork to contract it out, much less oversee the projects or even choose them with any kind of hope for success. It's like trying to feed a Pomeranian a 25 lb turkey. It's madness.
It was years before DHS got the situation under control and between the start and when they finally assembled a sufficiently capable team of lawyers, contracting officials, technical experts and resource managers, most of the money was totally wasted. Now take the DHS situation and multiply it by 20 and you've got the Obama stimulus package. Even if they hand the money to existing governmental agencies, the situation will be the same. Those existing agencies are working full time administering the
budgets they have. They can't just add a zero at the end of each contract and be done with it.Lastly, I've seen no business case analysis for this investment. I've seen lots of people referring to models and charts and graphs and history, but I've seen no analysis indicating that any of this will give you even a modest ROI....
Stop looking at models and equations and theoretical constructs for a while and look at the practical considerations of the stimulus package. I've been doing this sort of thing for quite a while and I'm convinced it's doomed from the start. If they feel the need to blast a trillion dollars into confetti, then tax cuts would make the most sense. Even if the public used the money to pay down debt, that would be a good thing as it would transfer the debt burden from the consumer to the government making the consumer feel a little bit like spending again.
Let the Rent Seeking Begin
The Association of Zoos and Aquariums (AZA) today called for shovel-ready zoo and aquarium infrastructure projects to be eligible for Federal stimulus funding....Many zoos have their roots in the Great Depression, when the Federal Work Projects Administration (WPA) helped build many zoos across America.Of course, this lobbying is part of the political process. Whether the AZA gets the money it wants for new zoos will be up to the new administration and Congress. I am sure that the Obama transition team is now carefully evaluating many hundreds of billions of dollars of proposed spending projects and will, over the next few weeks, determine precisely which of these pass a cost-benefit test.
As for me, I think dropping money out of a helicopter is looking better and better. (Or, more seriously, consider my federalist fiscal stimulus.)
Friday, December 19, 2008
Thursday, December 18, 2008
Stimulus Spending Skeptics
Obama advisers, including Christina Romer and Lawrence Summers, have been contacting economists from across the political spectrum in search of advice as they assemble a spending plan that would meet Obama's goal of preserving or creating 2.5 million jobs over two years....Only one outside economist contacted by Obama aides, Harvard's Greg Mankiw, who served on President Bush's Council of Economic Advisers, voiced skepticism about the need for an economic stimulus, transition officials said.Skepticism, rather than unequivocal opposition, is the right word. When contacted, I said the same things I have been saying on this blog: that monetary policy is not out of ammunition, and that tax cuts are potentially more potent than spending increases. I could have added that a spending-based stimulus to address the current short-term crisis might lead to a long-term increase in the size of government, but I doubted that concern would sway Team Obama. In general, I think economists need a large dose of humility when evaluating alternative proposals to deal with the current downturn, as there is still a lot we do not understand.
I am sure I am not the only person in the economics profession skeptical of spending increases to stimulate the economy. See, for example, GMU economist Tyler Cowen. If the new administration wanted to find more skeptics of stimulus spending among professional economists, I could have come up with some possible candidates for them, but the Obama economists probably already know who those likely skeptics would be.
By the way, House Republican leader John Boehner is compiling "a list of credentialed American economists who would like to add their voices to the list of stimulus spending skeptics." Click here to learn more.
Who's asleep?
A smart but snarky friend points out:President-elect Barack Obama says the government has been "asleep at the switch" when it comes to overseeing the nation's financial system.
He says Americans are "feeling frustrated that there's not a lot of adult supervision."
You might appreciate the irony that Citigroup's primary federal regulator is Timothy Geithner.
Two Views of Housing Policy
Recent news articles suggest that the Treasury Department is considering a plan to offer a 4.5% mortgage for home buyers for a period of time. Let's hope it does. It would help arrest the decline in house prices that is at the base of the ongoing financial crisis and recession.Ed Glaeser and Joe Gyourko:
Encouraging everyone to make highly leveraged bets on housing was patently a mistake. Housing policies of the past also erred by aiming at amorphous, often contradictory objectives, including higher homeownership rates, more affordable housing units and, most recently, higher prices. Those policies then mistakenly applied the same policy medicine to every housing market, whether housing was abundant and inexpensive or scarce and unaffordable. The problems of old-style housing policy are well illustrated by the unwise proposal being considered to provide subsidized loans to home buyers at 4.5 percent interest.
Art Laffer agrees with Al Gore
The Obama team's chatter about creating jobs in alternative renewable energies is hollow to say the least. Here's why: Any serious attempt to reduce carbon emissions must ultimately rely on a very large tax on the use of fossil fuels. And a very large tax on fossil fuels as an add-on to the taxes we already pay would drive the economy deeper into the ground -- with or without alternative renewable energy jobs.
The only real solution is Al Gore's proposal to offset a carbon tax dollar-for-dollar with either an income or payroll tax reduction. If a carbon tax increase were offset dollar-for-dollar with an income tax rate cut, I for one would strongly support the policy. The economy would benefit because the progressive income tax does far more damage than a carbon tax would, and we'd use less oil. It's a win-win situation. Yet this perspective appears to be totally outside the Obama team's ken.
Wednesday, December 17, 2008
Trade: Not an Obama Priority
This was what worried me last March.Saying that he has come to the realization that trade is not the highest priority for the incoming Obama administration, Rep. Xavier Becerra has decided not to accept Barack Obama's offer to be United States Trade Representative, according to an interview the California Democrat gave to the editorial board of La Opinion, a Spanish-language newspaper in Los Angeles....
Becerra said, "My concern was how much weight this position [U.S. Trade Representative] would have and I came to the conclusion that it would not be priority No. 1, and perhaps, not even priority No. 2 or 3."
Update: A reader suggests that I misinterpreted this story. If trade had been a priority, the reader suggests, it would have a renegotiation of trade agreements and a retreat from free trade. So putting trade on a back burner is then good news.
Perhaps. But I suppose this means that Joe Biden will not be following in the footsteps of Al Gore, who as veep defended the Bush-negotiated NAFTA on nationwide TV. Recall that there are still several pending free trade agreements, including those with Colombia and South Korea. The incoming adminstration would boost business confidence, and maybe investment spending as well, if it made a clear commitment to get these treaties passed and to continue pushing for more open markets.
Crises and Government
The above figure (reprinted from my favorite textbook) shows government revenue as a percent of GDP. The most noteworthy feature of these data is the substantial growth of government from 1929 to 1945. It is easy to understand why the size of government grew so much during this period: The nation was responding to the crises of the Great Depression and, especially, World War II. But what is noteworthy is that while these crises were transitory, the increase in the scope of government was permanent.
This historical episode is one reason why advocates of limited government are rightly worried about the fiscal stimulus package that the incoming administration is going to propose. Rahm Emanuel, the new White House chief of staff, is reported to have said, "You don't ever want to let a crisis go to waste: It's an opportunity to do important things that you would otherwise avoid." It is not entirely clear what he meant by this. But one interpretation is that he wants to use a temporary crisis as a pretense to engineer a permanent increase in the size of government.
Here is one question reporters should focus on when evaluating the proposed plan: Five or ten years from now, when the economy is presumably at some normal level of employment and growth, what will the federal budget look like, as evaluated by the budget deficit and tax revenue as a share of GDP?
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Update: Russ Roberts emails me that "Robert Higgs's Crisis and Leviathan is devoted to the relationship between the size of government and crisis." Thanks, Russ, for the reference.
Tuesday, December 16, 2008
The Next Round of Ammunition
Notice this passage in the Fed's press release (emphasis added):
The Federal Reserve will employ all available tools to promote the resumption of sustainable economic growth and to preserve price stability. In particular, the Committee anticipates that weak economic conditions are likely to warrant exceptionally low levels of the federal funds rate for some time.The phrase "for some time" is aimed at managing expectations in order to keep long-term interest rates down.
The next step for the Fed is to drop the "price stability" rhetoric. The Fed has never been truly committed to stable prices. After all, inflation during the Volcker-Greenspan era averaged about 2 to 3 percent. The Fed could have lowered inflation to zero if it had wanted. Now that zero, or even below zero, is a possibility, the Fed needs to convince people that we are going back to the normal inflation rate of 2 to 3 percent.
Let me suggest this wording for the Fed's next press release:
The Committee recognizes that moderate inflation would be desirable under the present circumstances. In particular, the overall level of prices a decade hence should be about 30 percent higher than the price level today. The committee anticipates keeping the stance of monetary policy sufficiently accomodative to achieve that degree of inflation over the coming decade.That is, even if the Fed cannot reduce nominal interest rates, it can reduce real interest rates by committing to a modest amount of inflation.
Some would view this as a radical change in monetary policy. In some ways, it would be. Given how weak the economy is, however, a bit of radicalism may be called for. I am more comfortable having the Fed commit itself to modest inflation than having the federal government commit itself to a trillion dollars of new spending. The more we can rely on monetary rather than fiscal policy to return the economy to full employment and sustainable growth, the better off future generations of taxpayers will be.
The abandonment of "price stability" would be the modern equivalent of Roosevelt's abandonment of the gold standard. Of all the things that Roosevelt did to get the economy out of the Depression, jettisoning the gold standard was the most successful. Today, monetary policy is fettered not by gold but by fear of inflation. Perhaps it is time is get over that fear, at least for a while. As Jim Tobin said in an earlier era, there are worse things than inflation, and we have them.
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Update: A reader points out to me that Paul Krugman seems miffed that I failed to cite his contribution to the large literature on expectations management by the central bank. Sorry, Paul. I actually do like Paul's paper on the topic quite a lot, and I cite it in my intermediate macro text when I discuss the liquidity trap (see footnote 5 on page 325 of the 6th edition).
It is funny. For academics, it is an occupational hazard to feel that your work is insufficiently cited. I had always assumed that the feeling would go away after winning a Nobel prize. I guess I was wrong.
Chu and Pigou
N.B.: NEC Director Larry Summers is also a club member in good standing. Will the energy secretary and NEC director manage to convince the president-elect to change his mind? Stay tuned.In a sign of one major internal difference, Mr. Chu has called for gradually ramping up gasoline taxes over 15 years to coax consumers into buying more-efficient cars and living in neighborhoods closer to work.
"Somehow we have to figure out how to boost the price of gasoline to the levels in Europe," Mr. Chu, who directs the Lawrence Berkeley National Laboratory in California, said in an interview with The Wall Street Journal in September.
But Mr. Obama has dismissed the idea of boosting the federal gasoline tax, a move energy experts say could be the single most effective step to promote alternative energies and temper demand.
Monday, December 15, 2008
Sunday, December 14, 2008
A Puzzle from Terence Tao
Suppose you are trying to get from one end A of a terminal to the other end B. (For simplicity, assume the terminal is a one-dimensional line segment.) Some portions of the terminal have moving walkways (in both directions); other portions do not. Your walking speed is a constant v, but while on a walkway, it is boosted by the speed u of the walkway for a net speed of v+u. (Obviously, given a choice, one would only take those walkways that are going in the direction one wishes to travel in.) Your objective is to get from A to B in the shortest time possible.
I won't even pretend that I could solve the third problem.1. Suppose you need to pause for some period of time, say to tie your shoe. Is it more efficient to do so while on a walkway, or off the walkway? Assume the period of time required is the same in both cases.
2. Suppose you have a limited amount of energy available to run and increase your speed to a higher quantity v' (or v'+u, if you are on a walkway). Is it more efficient to run while on a walkway, or off the walkway? Assume that the energy expenditure is the same in both cases.
3. Do the answers to the above questions change if one takes into account the various effects of special relativity? (This is of course an academic question rather than a practical one. But presumably it should be the time in the airport frame that one wants to minimise, not time in one’s personal frame.)
Addendum: Steve Landsburg has previously examined these issues with more of a focus on the economics.
Saturday, December 13, 2008
Wheelan for Congress
The Case for a Payroll Tax Cut
For the econonerds out there, here is a more complete analysis of the Bil-Klenow stimulus plan. Journalist Michael Kinsley makes the case too, while confirming his membership in the Pigou Club.
How about an immediate and permanent reduction in the payroll tax, financed by a gradual, permanent, and substantial increase in the gasoline tax? Make the two tax changes equal in present value, so while the package results in a short-run budget deficit, there is no long-term budget impact. Call it the create-jobs, save-the-environment, reduce-traffic-congestion, budget-neutral tax shift.
Okay, I have to work on the marketing.
Update: Gauti Eggertsson makes the case against supply-side tax cuts in the current environment. But note the caveat that if the tax cuts increase aggregate demand, they are okay in his model as well.
Friday, December 12, 2008
Thursday, December 11, 2008
Spending and Tax Multipliers
So what are these multipliers? In their new blog, Bob Hall and Susan Woodward look at spending increases from World War II and the Korean War and conclude that the government spending multiplier is about one: A dollar of government spending raises GDP by about a dollar. Similarly, the results in Valerie Ramey's research suggest a government spending multiplier of about 1.4. (Valerie does not present her results in multiplier form, but she emails me this translation: "The right column of figure 5A of my paper shows that for a log change of government spending of 1, log GDP rises by 0.28, implying an elasticity of 0.28. To back out the implied multiplier, we can use the fact that government spending averages around 20% of GDP. This implies a multiplier of 1.4.")
By contrast, recent research by Christina Romer and David Romer looks at tax changes and concludes that the tax multiplier is about three: A dollar of tax cuts raises GDP by about three dollars. The puzzle is that, taken together, these findings are inconsistent with the conventional Keynesian model. According to that model, taught even in my favorite textbook, spending multipliers necessarily exceed tax multipliers.
How can these empirical results be reconciled? One hypothesis is that that compared with spending increases, tax cuts produce a bigger boost in investment demand. This might work through changing relative prices in a direction favorable to capital investment--a mechanism absent in the textbook Keynesian model.
Suppose, for example, that tax cuts are not lump-sum but instead take the form of cuts in payroll taxes (as suggested by Bils and Klenow). This tax cut would reduce the cost of labor and, if labor and capital are complements, increase the demand for capital goods. Thus, the tax cut stimulates demand not only by increasing disposable income and consumption spending (the textbook Keynesian channel) but also by incentivizing more investment spending. A similar result might obtain if the tax cut included, say, an investment tax credit.
This hypothesized channel seems broadly consistent with the empirical findings of Blanchard and Perotti, Mountford and Uhlig, Alesina and Ardagna, and Alesina, Ardagna, Perotti, and Schiantarelli. The results of all these authors suggest you need to go beyond the standard Keynesian model to understand the short-run effects of fiscal policy.
My advice to Team Obama: Do not be intellectually bound by the textbook Keynesian model. Be prepared to recognize that the world is vastly more complicated than the one we describe in ec 10. In particular, empirical studies that do not impose the restrictions of Keynesian theory suggest that you might get more bang for the buck with tax cuts than spending hikes.
Wednesday, December 10, 2008
An Etymological Suggestion
A more accurate title might be car commissar.
Bailout, Italian-style
An economist might suggest letting a few producers fail, so supply shrinks, prices rises, and the remaining producers become more profitable. In fact, that same logic might apply to some other industries as well.The world is bailing out banks and car companies. Italy is coming to the rescue of parmigiano cheese.
In an effort to help producers of the cheese commonly grated over spaghetti, fettuccine and other pastas, the Italian government is buying 100,000 wheels of Parmigiano Reggiano and donating them to charity.
Though demand for parmigiano is strong in Italy and abroad, producers have been struggling for years to make money, putting the future of Italy's favorite cheese at risk.
Tuesday, December 9, 2008
Investment: Then and Now
More evidence that business cycles are not all alike.
POTUS-elect declines membership
But notice the emphasis on the phrase "right now." Maybe he will join at a later date. The Club is willing to keep the invitation open.
Mr. Obama's emphasis on weatherization and alternative lighting reminds me of President Carter's admonition to turn down the thermostat and wear cardigan sweaters. Maybe it works as a short-term sound bite, but it is not much of a long-term policy.
Addendum: The Washington Post confirms its membership.
Monday, December 8, 2008
Discretionary Fiscal Policy
These papers are not new, but they have renewed relevance in the current environment.
How to Avoid the Menu Cost
Sunday, December 7, 2008
Goodbye, Auto Industry
Krugman: US auto industry will probably disappear
STOCKHOLM, Sweden (AP) — Nobel economics prize winner Paul Krugman said Sunday that the beleaguered U.S. auto industry will likely disappear.
"It will do so because of the geographical forces that me and my colleagues have discussed," the Princeton University professor and New York Times columnist told reporters in Stockholm. "It is no longer sustained by the current economy."
Krugman won the 10 million kronor (US$1.4 million) Nobel Memorial Prize in economics for his work on international trade patterns. Some of his research on economic geography seeks to explain why production resources are concentrated in certain locations.
Speaking to reporters three days ahead of the Nobel Prize ceremony, Krugman said plans by U.S. lawmakers to bail out the Big Three automakers were a short-term solution, resulting from a "lack of willingness to accept the failure of a large industry in the midst of an economic crisis."
Facing massive job losses, the White House and congressional Democrats are negotiating a deal to provide about $15 billion in loans to prevent the weakened U.S. auto industry from collapsing.
Update: Paul says he was misreported.
Life in the Left Tail
Each block in this histogram represents one year of stock returns, using data since 1825. The most recent observation, based on 2008 returns to date, is the dark block in the far left tail. The figure gives a good sense of how historically extraordinary this year's bad news has been.
By the way, from February 2003, when a certain blogger was appointed to chair the Council of Economic Advisers, to February 2005, when he returned to Harvard, the stock market rose almost 50 percent. Just saying....
Saturday, December 6, 2008
Christmas Inflation: 8.1 Percent
Here is the Press Release.
Note that this index, like the CPI, assumes a fixed basket and therefore does not allow the consumer to take advantage of changes in relative prices. If you could substitute and, for example, buy fewer turtle doves and more French hens, the hit to the consumer's well being would be smaller. But it would wreak havoc on the song.
Friday, December 5, 2008
Mortgage Forgiveness as a Tax Hike
Here is the more academic version of the argument.
Deflation Alert
A Pigovian Tax on Cows
Addendum from the Tax Policy Blog: "The video quoted how much in additional tax the farmer in the story, Charles Hanehan, would pay under this proposed tax. And he made a ridiculous comparison to the bailouts that certain companies are getting right now, which is irrelevant. But since he brought up handouts to certain companies, I did a little digging on EWG's Farm Subsidy Database and found that Hanehan Family Dairy received $561,695 in subsidies from 1996-2006. You can't make this stuff up."
Chetty to Harvard
Thursday, December 4, 2008
What I did today
The event was recorded for C-SPAN, but I don't know when it will be aired.
Marriage over the Business Cycle
In a country where most marriages are arranged by parents, the downturn has even taken a toll on the matrimonial prospects of those in technology outsourcing. “Because there is no job guarantees for I.T. people, for the last six months brides’ families have not been accepting grooms from this background,” said Jagadeesh Angadi, a matchmaker in Bangalore.
Wednesday, December 3, 2008
Congratulations, Team Harvard
AS, AD, and the New Deal
Even staying within the AD-AS model, it seems possible to argue the opposite point of view. Imagine you are a manager of a firm considering a long-term investment project. The President has just announced a policy to encourage your workers to form a cartel. How does that influence your decision to proceed with the project? Very likely, it deters you. Investment spending, however, is part of aggregate demand (in fact, one of the most volatile components). Thus, the policy could shift the AD curve, as well as the AS curve, in a contractionary direction.
As a general matter, the state of aggregate demand depends on an amorphous variable called confidence. Anything that threatens to screw up AS in the long run most likely reduces confidence and AD in the short run. The textbook separation of AD and AS is useful for focusing discussion in the undergraduate classroom, but events in the real world are rarely so clean.
Tuesday, December 2, 2008
The Bils-Klenow Stimulus Plan
Intriguing idea. In light of my post from yesterday on fiscal policy puzzles, I am especially attracted to the goal of robustness: we should try to find a stimulus plan that works under a variety of alternative business cycle models.Greg,
As part of a temporary fiscal stimulus, we would argue for subsidizing the payroll tax (employer and employee portions) out of general revenue over some sustained period, say calendar year 2009. It has some distinct advantages:
(1) Like previous stimulus efforts, it has the standard demand side impact (same as cutting checks). But it also stimulates employment directly by reducing the tax penalties for working and for hiring workers. Related, it works under all business cycle models (even including those obeying Ricardian Equivalence).
(2) It targets domestic production better than sending out checks (or a sales tax cut).
(3) It targets lower income households, due to the cap on social security taxes. These households may respond more in both their consumption and employment decisions.
Now, it does not target the unemployed. But, in combination with extension of unemployment benefits, those with labor force attachment are still covered. In fact, it helps limit the damaging effects of extending the duration of unemployment benefits in terms of distorting reentry and job creation decisions.
Mark and Pete
Real interest rates plunge!
That is a huge change over only a few days. What happened? It appears to be, in large measure, a figment of data construction.
Here is how the data are made:
Real yields on Treasury TIPS (Treasury Inflation Protected Securities) at "constant maturity" are interpolated by the U.S. Treasury from Treasury's daily real yield curve. These real market yields are calculated from composites of secondary market quotations obtained by the Federal Reserve Bank of New York.And this is what you find in the footnotes:
Starting 12/01/2008, the TIPS yield curve will use on-the-run TIPS as knot points rather than all securities under 20 years.Why such a large difference between on-the-run (new) vs off-the-run (old) bonds, and why did the issue only arise now? I am not sure, and the Treasury website does not explain, but here is a guess.
TIPS offer asymmetric inflation-protection. If the price level rises, your principal rises as well. But if the price level goes down, you get your initial nominal principal back. (Don't believe me? Click here.) A new TIPS bond is great when there is risk of deflation. It is a real bond if prices go up, but more like a nominal bond if prices go down. Heads you win, tails you win also.
An older TIPS bond, however, is not as attractive. A lot of price inflation is already built into the adjusted principal. All of that inflation has to be undone by subsequent deflation before the nominal floor on the principal kicks in. As a result, when there is risk of deflation, the older bond has to offer a higher yield to compete with a newer one.
In other words, after a period of inflation, an older TIPS is closer to a true real bond, whereas a new TIPS is an attractive hybrid. This fact could explain the large jump down in the inferred real interest rate when the Treasury changed the raw bond data it uses. And it can explain why the issue became significant only recently, as people have started to seriously worry about deflation, inducing Treasury to change its calculations.
One implication of this hypothesis is that the real interest rate now reported is not a true real interest rate but is infected by the hybrid nature of these bonds. Yields on older off-the-run bonds may be more meaningful.
Of course, my conjecture could be completely wrong, as this is not my specific area of expertise. Another possibility is that the difference between these bonds instead has to do with changing liquidity premia. But one thing I am sure of: It is best to be wary of data from the TIPS market.
Monday, December 1, 2008
Fiscal Policy Puzzles
Many macroeconomists, however, are skeptical of the Keynesian model. And even among modern Keynesians, there is disagreement about specifics. I think it is fair to say that short-run business cycle theory remains one of the least settled parts of economics. Any economist approaching the subject should bring an ample dose of humility. (The alternative is a surfeit of hubris--a character trait all too common among economic commentators.)
The Keynesian model has some clear, practical insights about how to think about fiscal policy during economic downturns. But are those insights true?
One approach to answering this question is to examine the data using the techniques of time-series econometrics without imposing much a priori theory. For monetary policy, there is a large literature that does this; for fiscal policy, the literature is smaller but growing. The results from this exercise, however, do not always confirm the predictions from textbook Keynesian models.
For example, here is the conclusion of Andrew Mountford and Harald Uhlig (a prominent econometrician now at the University of Chicago) in an empirical study called "What are the Effects of Fiscal Policy Shocks?":
Our main results are that
- a surprise deficit-financed tax cut is the best fiscal policy to stimulate the economy
- a deficit[-financed government] spending shock weakly stimulates the economy.
- government spending shocks crowd out both residential and non-residential investment without causing interest rates to rise.
An earlier, related paper by Olivier Blanchard and Roberto Perotti called "An Empirical Characterization Of The Dynamic Effects Of Changes In Government Spending And Taxes On Output" reported similar anomalous results:
we find that both increases in taxes and increases in government spending have a strong negative effect on private investment spending. This effect is consistent with a neoclassical model with distortionary taxes, but more difficult to reconcile with Keynesian theory: while agnostic about the sign, Keynesian theory predicts opposite effects of tax and spending increases on private investment. This does not appear to be the case.Blanchard, incidentally, is now the chief economist at the IMF.
I am not sure how convinced I am by these findings. And even if they are correct, I am not sure what model I should use to explain them and to what extent that model would apply to the extraordinary economic circumstances we now face. At the very least, these puzzles should give us reason to pause when using the Keynesian framework for policy analysis. There is still a lot about macroeconomics that remains deeply puzzling.
Passing the Buck
Some economists, such as Dean Baker and Paul Krugman, argue the answer is no. Worries about the budget deficit, in their view, should not deter fiscal expansion. In essence, they say that future generations would be even worse off if we live through a period of depressed aggregate demand, high unemployment, and consequently reduced investment.
In my view, these arguments are cogent only under the maintained assumption that there is no good alternative to fiscal expansion. If our only choice is between (a) full employment with a large budget deficit and (b) depression without a large structural budget deficit, then by all means let's choose (a).
But I continue to believe that there are other choices. Typically, these put monetary policy front and center. As I pointed out in an earlier post, based on data Paul put together, some measures of long-term real interest rates are still high. The Fed can work to get those down and expand private investment.
To be sure, that requires nonstandard monetary actions by the Fed. At this point, simply focusing on the current target for the federal funds rate is not enough. The best thing to read about this topic is a speech Ben Bernanke gave in 2002. As I noted in my most recent Times column, the Fed is now engaging in the sort of creative monetary policy Ben talked about six years ago.
One thing all economists agree on: If there are public investment projects that pay a high rate of return, those are worth paying for, even if it means more borrowing. But that is always true. Even if we were at full employment and there were no possible employment effects of fiscal stimulus, we should undertake public investments that pass a cost-benefit test.
In this regard, two observations come to mind. First, since most infrastructure is used locally, the proper level of spending is best determined by state and local governments rather than by the federal government. Earlier, I suggested that fiscal stimulus could be decentralized. Each state governor could be allowed to determine whether to take federal money as state aid or have it paid directly to his or her state's citizens as tax relief. I still think that makes sense.
Second, more public projects would pass a cost-benefit test if we repealed the Davis-Bacon Act. This law requires contractors on these public projects to pay "prevailing wages," which are typically union wages well in excess of what would occur in a free market. If the government paid market-determined wages for infrastructure projects, we could have both more infrastructure and less government debt. Without doubt, that legacy would benefit future generations.
An Occupational Hazard
How to Combat a Banking Crisis: First, Round Up the Pessimists
Latvian Agents Detain a Gloomy Economist; 'It Is a Form of Deterrence'RIGA, Latvia -- Hammered by economic woe, this former Soviet republic recently took a novel step to contain the crisis. Its counterespionage agency busted an economist for being too downbeat.
"All I did was say what everyone knows," says Dmitrijs Smirnovs, a 32-year-old university lecturer detained by Latvia's Security Police. The force is responsible for hunting down spies, terrorists and other threats to this Baltic nation of 2.3 million people and 26 banks.
Now free after two days of questioning, Mr. Smirnovs hasn't been charged. But he is still under investigation for bad-mouthing the stability of Latvia's banks and the national currency, the lat. Investigators suspect him of spreading "untruthful information." They've ordered him not to leave the country and seized his computer.
Sunday, November 30, 2008
The Next Team
No, it is not a right-wing cabal. It's Team Obama.
Here's the evidence:
All points well taken. Indeed, quotations like these make me pleased with recent economic appointments. I just hope that the above lessons make their way into the President-elect's briefing memos and that he is persuaded by them.When Senator Christopher J. Dodd, Democrat of Connecticut, gave his opening statement last week at the hearings lambasting the rise of “risky exotic and subprime mortgages,” he was actually tapping into a very old vein of suspicion against innovations in the mortgage market.....Congress is contemplating a serious tightening of regulations to make the new forms of lending more difficult. New research from some of the leading housing economists in the country, however, examines the long history of mortgage market innovations and suggests that regulators should be mindful of the potential downside in tightening too much.
Unemployment insurance also extends the time a person stays off the job. Clark and I estimated that the existence of unemployment insurance almost doubles the number of unemployment spells lasting more than three months. If unemployment insurance were eliminated, the unemployment rate would drop by more than half a percentage point, which means that the number of unemployed people would fall by about 750,000. This is all the more significant in light of the fact that less than half of the unemployed receive insurance benefits, largely because many have not worked enough to qualify.
Another cause of long-term unemployment is unionization. High union wages that exceed the competitive market rate are likely to cause job losses in the unionized sector of the economy. Also, those who lose high-wage union jobs are often reluctant to accept alternative low-wage employment. Between 1970 and 1985, for example, a state with a 20 percent unionization rate, approximately the average for the fifty states and the District of Columbia, experienced an unemployment rate that was 1.2 percentage points higher than that of a hypothetical state that had no unions.
Tax changes have very large effects on output. Our baseline specification suggests that an exogenous tax increase of one percent of GDP lowers real GDP by roughly three percent.
--Christina Romer (writing with husband David)
Given the key roles of monetary contraction and the gold standard in causing the Great Depression, it is not surprising that currency devaluations and monetary expansion became the leading sources of recovery throughout the world....the new spending programs initiated by the New Deal had little direct expansionary effect on the economy.
These quotations also make me a bit surprised we have not heard more complaining from the left-wing of the Democratic party. But that may be still to come.
Job Market Signaling
Everyone else: Ignore this post.
Saturday, November 29, 2008
Lessons from the Crisis
Mike says a lot of smart stuff in this article. But this sentence seems to veer off in the wrong direction, or at the very least could be easily misinterpreted:
we need a commission of top industry professionals and academics to address the challenge of measuring and detecting systemic risk and provide the underpinning of an effective “early warning” system.I see little hope of creating any kind of "early warning" system, if by that Mike means better forecasting. Crises like the current one are inherently unpredictable. If they were predictable, hedge funds and other money managers would not lose so much money during them.
True, a few people were sounding an alarm in advance of the current crisis: Nouriel Roubini, in particular, comes to mind. And a few hedge funds have made money during the crisis. Yet that fact is not very meaningful. Given the diversity of opinion at any point in time, someone will always look right ex post. The key question is whether the event is reliably predictable ex ante.
Policymakers at the Fed and Treasury cannot do better than rely on the consensus judgment of experts, and a couple years ago the consensus opinion was not predicting anything like what is now occurring. To suggest a regulatory system that gives an "early warning" is like saying we need to find a better crystal ball. Good luck with that.
In my view, the key to regulatory reform is not trying to predict the future with more accuracy but, instead, making the system more robust so that the economy functions better when the unpredictable inevitably occurs. In other words, our focus needs to be not on what will happen but on what might happen.