Thursday, June 24, 2010
What are the reasons for Poland's extraordinary performance in 2009? Good economic policy had much to do with it. As with some other emerging market economies Poland was in a much better macroeconomic position in 2009 than it was 10 years ago. It kept its inflation rate and its debt levels low, limited its borrowing in foreign currencies, and accumulated a large amount of foreign reserves. It also did not overact to the financial crisis, despite urging of many inside and outside of Poland to do more to stimulate the economy with discretionary fiscal policy. By not overacting it prevented the kind of panic seen in other countries.
Some say that the flexible exchange rate was a factor in avoiding recession as the depreciation of the Zloty helped keep net exports from declining as sharply as in other countries. However, the Zloty appreciated before the crisis which would have had negative effects, and the subsequent depreciation essentially took the exchange rate back to about where it was before that appreciation, as shown in the second chart.
While Poland still needs to be vigilant and keep its government debt from rising as a share of GDP, it is currently in far better shape than other countries according IMF data on debt, including the United States.
Thursday, June 17, 2010
This spring I gave the dinner talk at the 25th meeting of the Macro Annual, summarizing the empirical work I have been doing on the financial crisis. I called the lecture, Macroeconomic Lessons from the Great Deviation, and began with the following explanation of the title of the talk:
I know economists use the word “Great” too much, but I think it is quite fitting here. We all know what the Great Moderation was and we have debated what caused it. Many have argued that good policy, especially good monetary policy, played a big role. And we all know what the Great Recession was and that it marked the end of the Great Moderation. You may not have heard much about the Great Deviation. I define it as the recent period during which macroeconomic policy became more interventionist, less rules-based, and less predictable. It is a period during which policy deviated from the practice of at least the previous two decades, and from the recommendations of most macroeconomic theory and models. My general theme is that the Great Deviation killed the Great Moderation, gave birth to the Great Recession, and left a troublesome legacy for the future.
I then went on to list a dozen policy actions and interventions that I would put under the rubric of the Great Deviation and reviewed each. The full talk is here.
Monday, June 14, 2010
The reason that government officials do not want to go down the restructuring route, or even admit the possibility, is that they worry that a restructuring would be disorderly, jolt the financial markets, perhaps causing contagion. But a restructuring does not have to be disorderly and would have the added benefit of avoiding harmful future bailouts.
In a recent paper, “How to Restructure Greek Debt,” Mitu Gulati a professor at Duke Law School, and Lee Buchheit, a partner at Cleary Gottlieb in New York, lay out in detail an approach to restructuring which would likely result in very little market disruption. Gulati and Buchheit have studied or been involved in many sovereign debt restructurings over the years, so they know the relevant law and what they are talking about in the Greek case. I know them from their work on “collection action clauses,” (CACs) which emerging market countries put into their sovereign bonds as a way a way to avoid disruptive defaults and thereby give the IMF and the official sector an alternative to bailouts. Collective action clauses enable a super majority of bond holders (frequently 75%) to agree with the sovereign to change the financial terms of a bond and then require the remaining bond holders to go along. This avoids the holdout problem that usually forces a default or a bailout. In my view, collective action clauses have helped reduce bailouts of emerging market countries and improved macro policy in those countries as I argued in a post on this blog last March 2 Why Did Macro Policy in Emerging Market Countries Improve?
Friday, June 11, 2010
First is the math. My Ph.D. course is loaded with math—multivariate stochastic processes, differential and difference equations, inter-temporal optimization, vector auto-regressions. It is not unusual to fill several slides or blackboards with equations. Here is what you would see if you walked into my Ph.D. lecture on risk and rates of return on bonds.
In contrast my introductory course has virtually no math beyond high school algebra. The emphasis is on economic intuition, reasoning, applications, and I mainly use graphs. Here is what you would see if you walked into my introductory lecture on risk and rates of return on bonds.
People are always surprised by the amount of math used in teaching economics in graduate school, and some think it is used too much. In an interview with Milton Friedman I published several years ago, he said “I go back to what Alfred Marshall said about economics: Translate your results into English and then burn the mathematics. I think there’s too much emphasis on mathematics as such and not on mathematics as a tool in understanding economic relationships.” While I agree about the need to explain the mathematical results in simple terms, I do not agree about burning the math once translated. Mathematical methods are now used in practice in economics and finance in both the public and private sector, from auctioning the spectrum to matching medical students and residence programs. People need to have an intuitive understanding of the methods, but you also need the math (and the computer programs) to make them work.
A second difference between the introductory course and the Ph.D. course, which you would notice right away if you walked in, is the greater emphasis on entertainment (I call it surprise-side economics) in the former. This is in part because the introductory course is much larger—100s of students compared to about 25 in Ph.D. classes, but also because the Ph.D. students have already decided to become professional economists, and are usually happy to focus on the details of the subject without a constant reminder of the motivating factors.
The most interesting difference between the courses in my view is how you simplify the more complex ideas for beginning students. One of the great teachers who taught at both levels—though in physics rather than economics, Nobel Prize winner Richard Feynman wrote this about teaching at the introductory level: “Now, what should we teach first? Should we teach the correct but unfamiliar law with its strange and difficult conceptual ideas, for example the theory of relativity, four-dimensional time-space, and so on? Or should we first teach the simple “constant-mass” law, which is only approximate, but does not involve such difficult ideas? The first is more exciting, more wonderful, and more fun, but the second is easier to get at first, and is a first step to a real understanding…. This point arises again and again in teaching physics.”
It also arises again and again in teaching economics. Some ideas—like auction theory or mechanism design for matching—probably have to wait to more advanced courses. But in my view it is possible to teach many other amazing economic ideas rigorously at the intro level—for example, the efficiency of competitive markets or how a central bank controls the interbank rate—and thus give beginning students an understanding of the “more exciting, more wonderful, and more fun” parts of economics.
Which course do I enjoy teaching more? Both are challenging and rewarding, though in different ways. Not to dodge the question, but the truth is I enjoy both.
Monday, June 7, 2010
There are a number of reasons for the change. Most obvious is the serious crisis caused by the debt problems in Europe. In addition the new UK Chancellor of the Exchequer George Osborne has brought new focus to deficits. And perhaps some are beginning to wonder whether all those debt increasing stimulus packages have brought more harm than good and that policy should be put back on track as soon as possible, as I have been arguing in this blog or in opeds or interviews such as this Bloomberg TV segment from last Thursday just before the meeting: "Taylor says G20 needs to focus on debt, stimulus."
Of course, we must wait to see if the G20 language change is a precursor of real actions. Watch to see if the G20 leaders have the same response as their finance ministers when they hear from President Obama at their meeting in Toronto next month.