...the hazard modeL The central idea is to specify disturbances that follow a continuous time Brownian Jerry A. Hausman is professor of economics, Massachusetts...research associate. National Bureau of Economic Research. We are grateful for the extensive research assistance of Andrew Lo, Douglas Phillips, Lynn Paquette,...

...by rules defined by Congress in ERISA. The principal contribution of Bulow, Richard J Zcckhauser is professor of political economy. John F Kennedy School...University, and research associate. National Bureau ol Economic Research. Scholes, and Menell is to devise such a game and provide a strategy manual for...

...of Economic Research. Richard J. Zeckhauser is Frank Plumpton Ramsey Professor of Political Economy, Kennedy School of Government, Harvard University,...Research Associate, National Bureau of Economic Research. Adverse selection can lead to three classes of inefficiencies: Prices to participants do not reflect...

...proportions approach 1753 6 Conclusion 1755 References 1757 * Pforzheimer Professor of Public Policy, John F. Kennedy School of Government, Harvard University;...Research Associate, National Bureau of Economic Research. I am grateful to the National Science Foundation for research support. Handbook of Labor Economics,...

...The following study was prepared by George J. Borjas, Pforzheimer Professor of Public Policy, John F. Kennedy School of Government, Harvard University,...Research Associate, National Bureau of Economic Research. There has been a resurgence of immigration in many developed countries. Over 120 million people, or...