In aggregate U.S. data, exogenous shocks to labor productivity induce highly persistent and hump-shaped responses to both the vacancy-unemployment ratio and employment. We show that the standard version of the Mortensen-Pissarides matching model fails to replicate this dynamic pattern due to the...

Shimer (2005) showed that a standard search and matching model of the labor market fails to generate fluctuations of unemployment and vacancies of the magnitude observed in US data in response to shocks to average labor productivity of plausible magnitude. He also suggested that wage...