This paper estimates the response of the unemployment rate and labor force participation rate to exogenous variation in the youth share of the working age population, using cross-state variation in lagged birth rates as an instrumental variable. A one percent increase in the youth share reduces...

This paper argues that a broad class of search models cannot generate the observed business-cycle-frequency fluctuations in unemployment and job vacancies in response to shocks of a plausible magnitude. In the U.S., the vacancy-unemployment ratio is 20 times as volatile as average labor...