. Legalizing Illicit Drugs: A Problem Paper Prepared for the Copenhagen Consensus 2008. In: Solutions for the World's Biggest Problems: Costs and Benefits. Cambridge University Press; 2007.
Papers in Edited Books
. The Budgetary Implications of Marijuana Prohibition. In: Pot Politics: Marijuana and the Costs of Prohibition. Oxford University Press, Inc.; 2010.
. The Economics of Illicit Drugs: Harm from Prohibition versus Harm from Drugs. In: Economics Uncut: A Complete Guide to Life,Death, and Misadventure. Edward Elgar; 2004.
. Liberal Versus Libertarian Views on Drug Legalization. In: The New Prohibition: Voices of Dissent Challenge the Drug War. Accurate Press; 2004.
. The Genesis and Evolution of Social Security. In: The Defining Moment: The Great Depression and the American Economy in the Twentieth Century,. Chicago: The University of Chicago Press,; 1998.
. Why Does Inflation Differ Across Countries?. In: Monetary Policy and Low Inflation. Chicago: The University of Chicago Press; 1997.
. Historical Perspectives on the Monetary Transmission Mechanism. In: Monetary Policy. Chicago: The University of Chicago Press; 1994. p. 263-300.
. Global Patterns of Seasonal Variation in Human Fertility. In: Human Reproductive Ecology: Interactions of Environment, Fertility, and Behavior. New York: The New York Academy of Sciences; 1994. p. 9-28.
. The Economics of Seasonal Cycles. In: Advances in Econometrics: The Sixth World Congress of the Econometric Society, Vol. I. Cambridge: Cambridge University Press; 1994. p. 213-251 .
. Comment on "Economists and Drug Policy" by William J. Niskanen. In: Carnegie-Rochester Conference Series 36, July. ; 1992. p. 249-59.
. Drug Legalization and the Consumption of Drugs: An Economist's Perspective. In: Searching for Alternatives: Drug-Control Policy in the United States. Stanford, California: Hoover Institution Press; 1991. p. 68-76.
. Comment on "Pitfalls and Opportunities: What Macroeconomists Should Know About Unit Roots" by John Y. Campbell and Pierre Perron. In: NBER Macro Annual. 211-217; 1991.
. Should the Fed Smooth Interest Rates? The Case of Seasonal Monetary Policy. In: Carnegie-Rochester Conference Series 34, Spring. ; 1991. p. 41-70.
. Temperature and the Seasonality of Births. In: Temperature and Environmental Effects on the Testis. Plenum Press; 1991.
. Has the Fed Made a Difference? A Comparison of Pre- and Post-1914 Conditions. In: Monetary Policy on the 75th Anniversary of the Federal Reserve System. Kluwer Academic Publishers; 1991.