Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Contract and search theories are integrated to provide a consistent explanation of contract formation, the intertemporal structure of labor markets, the absence of ex post clearing, and thus of unemployment in a contractual setting. Self-fulfilling equilibria are described in which low-productivity firms lay off some workers, while high-productivity firms' recruitment (search) intensity and the resulting degree of interfirm mobility are endogenous. The effects of severance pay on layoffs and mobility are identified. Finally, the market economy is shown to generate too few layoffs whenever high-productivity firms recruit new hires: without recruitment, laid-off workers are immobile and equilibrium is constrained efficient. Copyright 1986 by University of Chicago Press.