This paper considers the effect of a skill biased productivity shock in the
case where the unemployed worker risks a loss of skill. This divides the w
orkers into short- and long-term unemployed. The short-term unemployed and
long-term unemployed search for employment in the most productive sector an
d in the antiquated sector, respectively, The implications of a shock with
a minimum wage law are compared to the implications when wages are perfectl
y flexible, The economic variables considered are short- and long-term unem
ployment, wages and wage disparity, and the equilibrium rate of unemploymen
t, (C) 2001 Elsevier Science B.V. All rights reserved.