This paper elucidates hysteresis using a simple model of market entry and exit. A procedure for calculating hysteresis indices for economic time series is outlined. Some preliminary results assess the explanatory power of hysteresis variables in determining the equilibrium rate of unemployment...

Reviews Milton and Rose D. Friedman’s, Two Lucky People: Memoirs, University of Chicago Press, Chicago, 1998, $35 (£24.95), ISBN 0-226-26414-9. Focuses on how the memoirs illuminate the main contributions Friedman has made to political economy and the economics literature.