We study the effects of changes in labor productivity on the labor market in the long run in the context of the Mortensen-Pissarides model. For simplicity, unemployment benefits are set to b=0. In the long run, wages and recruiting costs are proportional to labor productivity: w = ̠y and k = cy where b and c are two positive real numbers. Equilibrium market tightness with y and the unemployment rate with y
a. Does not vary; does not vary
b. Increases; Decreases
c. Decreases; Increases
d. Increases; Does not vary with
e. Does not vary; Increases