Steven Weinberg (2018) says: (1) new theories that target new observations should be constrained to agree with observations successfully represented by existing theories; and (2) preserving successes of earlier theories helps to discover unanticipated understandings of yet other phenomena....

General equilibrium analyses of layoff costs have had mixed messages on the implications for employment. This paper brings out the economic forces at work and explains the disparate results. Specifically, we show that positive employment effects of layoff costs come through reducing labor...

Campbell and Cochrane (1999) formulate a model that successfully explains a wide variety of asset pricing puzzles, by augmenting the standard power utility function with a time-varying subsistence level, or "external habit", that adapts nonlinearly to current and past average consumption in the...

This paper examines the role for tax policies in productivity-shock driven economies with catching-up-with-the-Joneses utility functions. The optimal tax policy is shown to affect the economy countercyclically via procyclical taxes, i.e., "cooling down" the economy with higher taxes when it is...

This paper studies equilibrium unemployment in a search model where the government both provides liberal unemployment insurance and taxes labor at high progressive tax rates. It is shown how progressive income taxation can counteract a high unemployment rate under generous unemployment...

This article offers a supply-side explanation of striking patterns in unemployment rates and duration of unemployment in European countries, compared with other member countries of the OECD (Organization for Economic Cooperation and Development). The rise in long-term unemployment in Europe is...

Post World War II European welfare states experienced several decades of relatively low unemployment, followed by a plague of persistently high unemployment since the 1980s. We impute the higher unemployment to welfare states' diminished ability to cope with more turbulent economic times, such...