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Are you a Keynesian? |
PreviewIn this issue, I summarize what I see to be the opposing viewpoints and corresponding policy prescriptions of the current recession. Most current policy has its roots in Keynesian Economics, and thus I frame the debate around this perspective. At its core, Keynesian policy aims to influence aggregate demand in an effort to dampen the business cycle. A Keynesian economist believes that consumer demand in a recession is too low, and thus government should intervene to try to increase it. Monetary policy and fiscal policy are the tools used to accomplish this objective. Ultimately, I have never fully embraced Keynesian Economics and thus don't believe the current policy direction is the right one. Unlike the Keynesian point of view, I generally view recessions as necessary periods of economic adjustment that follow broad misallocations of resources. Such a view seems especially appropriate since the current recession followed such a dramatic resource misallocation in housing and finance. Thus, I would prefer policies that encourage the transition process rather than try to stabilize industries that are in decline. Are you a Keynesian economist?I am not a macroeconomist by training, but the financial crisis has prompted me to learn a lot about Keynesian economics over the last few months. I began by reading John Maynard Keynes' General Theory of Employment, Interest and Money. I believe it was Paul Krugman who said: "Is it too much to ask that someone criticizing Keynes actually, you know, read Keynes?" I have read most of General Theory but largely find it unconvincing and difficult to follow. The ideas were revolutionary, of course, but the book itself is a tough read. My advice: unless you want to slog through some dense text and economics, stick to online summaries. The best one I have found is Alan Blinder's article in The Concise Encyclopedia of Economics. Blinder sums up Keynesian Economics with 6 fundamental tenets (paraphrased below):
According to Blinder, most economists accept 1-3 as true. The more you accept numbers 4-6, the more Keynesian you are. The labor market is the classic example where prices adjust slowly since recessions tend to raise unemployment rather than lower wages. See New Keynesian Economics by Greg Mankiw for a good primer on why prices might be slow to adjust. Recessions occur when aggregate demand contracts. The appropriate policy response depends on how you interpret this contraction. Keynesian economists generally view such contractions as erratic, macroeconomic errors, and thus propose to fill in demand gaps via government spending. Classical economists tend to view most prices as ''correct'' - a rational response to changing market conditions - and are more reluctant to intervene. Austrian economists believe that economic booms tend to overallocate resources to the wrong sectors, so recessions are healthy adjustment processes that correct these misallocations. Economist Arnold Kling has a nice summary of the Keynesian versus the Austrian interpretation of the current recession:
Most mainstream economists - and certainly those with the most policy influence - favor the Keynesian perspective. They believe that our economy is operating far below its potential output. Resources that could be productive are not being utilized due to lack of demand. Since private sector demand is too low, demand must be created by the public sector. As for me, I have never really resonated with Keynesian Economics. I find it especially strange in the context of the current recession, where the largest fraction of our ''underutilized'' resources seem to be in housing and finance. Because I view these sectors as having attracted too much demand during the bubble years, trying to stimulate them makes no sense. See here, here, and here for some of my previous newsletter issues on these sectors before they imploded. I don't see how anyone can consistently believe that we had a housing bubble, yet create policies designed to increase housing demand (i.e. First-Time Homebuyer Credit). Or how anyone can believe that mortgage securitization was out-of-control, yet try to save companies that failed when this market collapsed. In terms of Blinder's 6-step Keynesian membership criteria, I break rank somewhere near step 3. That is, I agree that (1) demand sometimes behaves erratically (but most dangerously on the upside, not the downside) and that (2,3) prices are sometimes slow to adjust (see what I wrote in Slow-motion housing cycles). But I generally view (4) recessionary unemployment as necessary rather than undesirable, (5) stabilization policy as mostly ineffective, and (6) inflation as being worse than unemployment. Markets aren't perfect, but that doesn't mean that perfect policies necessarily exist to correct them. Trying to do too much is often a mistake. Both private and public markets are susceptible to the same errors of human judgment, but over the long-run I generally prefer private-sector incentives to public-sector ones (see The financial crisis and the defense of free markets). All else being equal, it's probably better for government to spend in a recession than in a boom. But it's not as if policy is designed to save money in the boom and spend in the recession. It's more like spend in a boom and spend more in a recession. Then when things get really bad, we throw fiscal responsibility completely out the window in order to spend even more. I have a hard time feeling comfortable with that. Current policyHere are the three "big picture" policy actions as I see them: (1) don't let the broad money supply fall, (2) increase government spending to spur aggregate demand, and (3) don't let the banking sector collapse. (1) Don't let the broad money supply fall To simplify, assume there are only two levels of the money supply: base money (M0 below) and broad money (M2 below). In a booming economy, the ratio of broad money to base money is large. Banks have lower reserve requirements, individuals and businesses are more leveraged, and so on. The ratio shrinks in a recessionary economy as reserve requirements go up and leverage goes down. Suppose the central bank did nothing. Then the broad money supply could shrink rapidly in a recession: Instead, the central bank tries to expand the base money supply to offset any decline in the money multiplier (M2/M0): Conventional academic wisdom is that the Great Depression was caused, in part, by the Federal Reserve's failure to adequately expand the money supply. The shrinking broad money supply sent our economy into a deflationary liquidity trap. When the money multiplier dropped precipitously during the 2008 financial crisis (click here for the chart), the Federal Reserve responded by dramatically increasing the base money supply (click here for the chart). We shouldn't be too surprised because the Fed is essentially just doing what it said it would do in a crisis. This monetary expansion will be inflationary only to the extent that the Fed will not be able to reverse it. Yes, the Fed is "printing money" like crazy, but with a specific purpose and exit strategy. Consider this important excerpt from one of Ben Bernanke's recent speeches:
However, I suspect that unwinding these policies is easier said than done. The political pressure to keep the money flowing will be enormous. In addition, we've seen what happens when the Fed reverses policy only after visible signs of recovery are in place: the Fed tightening cycle that began in July 2004 was too late to prevent massive financial speculation in housing. Once these bubbles get going, they are difficult to stop. The counterfactual is tough to know for sure (would we have had such a large housing bubble if the Fed had not eased so much for so long?), but our experience over the last few years is enough to make me much more nervous than Bernanke (though I doubt he is exactly sleeping well these days). (2) Increase government spending to spur aggregate demand The second arm of current policy is to increase public sector spending to compensate for falling private sector demand. This is essentially every big-government politician's dream scenario. To get a sense for the magnitude of such spending increases, see the following graph from one of John Hussman's latest articles: Hussman writes:
In my view, the problem with spending so much is that we don't actually have the money. It's not as if we have trillions of dollars lying around: we are borrowing the money. Would you tell the family with too much credit card debt to borrow more in order to ease the pain? Maybe there are some circumstances where this could be justified, but in general you would tell them to be more conservative and to cut back on spending. [Addendum: added on April 21, 2009 Here is an even better graphical representation of our projected fiscal policy (from Greg Mankiw): ] (3) Don't let the banking sector collapse This area is where I am most sympathetic to an active policy prescription. A complete laissez-faire attitude towards the banking sector would probably be too devastating institutionally. As I discussed in my November 2008 Newsletter, the general research consensus (led by Bernanke) is that the Great Depression lasted so long because (1) the Fed failed to adequately expand the money supply and (2) the banking sector collapsed. So we do what we can to save the banking system from failing. But I am skeptical of any efforts to preserve the current banking system. I file the Geithner plan to buy troubled bank assets under this heading. In my view, the plan does not offer enough transition to new ownership, management, and business models and will inevitably result in huge taxpayer subsidies to currently existing banks. This is an area on which even Paul Krugman and I can agree. Here are some excerpts from the best policy proposal I've read:
In other words, debts that cannot be repaid need to be restructured or wiped out, not simply transferred to taxpayers. Any policy that fails to recognize this is missing the point. My viewIn summary, I think that Policy (1) of expanding the money supply makes sense in theory, though in practice I would prefer something far less aggressive. Policy (2) of fiscal spending does not appeal to my non-Keynesian nature, so I think that most of the spending will be wasteful. And Policy (3) for saving the banking sector focuses too much on subsidies to current institutions and not enough on coordinating the transition to new ones. To revisit the Kling article:
I have had a number of discussions over lunch and coffee with my graduate school classmates while doing research for this newsletter (especially those with stronger macro backgrounds than myself). But I find their views of the current crisis to be no more sophisticated than mine. Unfortunately, most policy disagreements between us come down to simple economic ideology: how strongly do you believe that governments allocate resources more efficiently than the private sector? Economists who believed in big government before the crisis tend to want big government solutions. Those with less confidence in government favor private sector solutions. However, it seems to me that more and more economists from both sides are starting to worry that the policies may be going overboard:
I suppose their final sentence is an endorsement of the Bernanke Doctrine, but it seems out of place by economists who otherwise sound terrified by the potential consequences (you can read the article and judge for yourself). Here is an alternative perspective by Chicago-trained (read: conservative) economist Ed Glaeser, who is sounding the alarm bells for other reasons:
With regard to the fiscal stimulus and government policy more generally, I have been thinking about the crisis much in the same way as Arnold Kling's piece titled "Deficit Spending: A Scenario Analysis". The Kling analysis focuses on two possible Black Swans (unlikely events of large magnitude):
In other words, fiscal stimulus is unlikely to actually result in Depression Averted or Catastrophic Collapse, but it increases the probability of each. Your view of fiscal stimulus should be based on the values and probabilities that you assign to each event. As you probably guessed, I think that fiscal stimulus is unlikely to dramatically improve our chances of Depression Averted (whether we enter a depression or not). And I view the Catastrophic Collapse scenario as too devastating (and too possible) to risk moving in that direction. Instead, I would prefer that we bite the bullet, buckle down, and cut back on spending. If you had to pin me down on my personal policy response to the crisis, it would be this:
The common Keynesian view is we need massive government stimulus to kick-start our economy out of this slump. The bigger, the better. I am skeptical of this view for many reasons, most important of which is my interpretation of how we arrived at this point. My personal view of this recession centers around individuals living beyond their means, thinking that good times would last forever. Above-average economic growth, rising home prices, double-digit stock returns - you name it, we overestimated it. Banks magnified the problem by adding optimistic estimates of calibration parameters in complex derivative models. Add a little leverage (or a lot of leverage), and you've got a full-blown financial crisis. Now that the optimistic estimates have been discredited, individuals demand a new set of goods which is more consistent with realistic wealth expectations. Unfortunately, our economy is not set up to handle this demand (it is stuck in the old demand regime). As such, the most effective policies will focus on transitioning to meet the new demand rather than trying to stabilize what currently exists. ConclusionI'll like to finish with the following excerpt from NYTimes' David Brooks, who summarizes my skepticism with the current policy path:
Those who advocate massive government intervention are often upset when the actual policy is announced. "If only it were executed correctly", they say. But we need to be realistic about how policies work in practice. The market isn't perfect, but neither is intervention. Not every economic problem can be solved via centralized policy. My biggest worry of all is that we are doing too much, too fast - so much so that we are losing our ability to manage it. The current policy path reminds me of the famous saying, "Having lost sight of our objective, we have redoubled our efforts." And so it goes. |