not sensitive to the level of disaggregation by construction. Observing that estimated aggregate matching efficiency lags … business cycles, I identify a structural shock to aggregate matching efficiency using standard timing restrictions. Based on …

Reduced-form tests of scale effects in markets with search, based on aggregate matching functions, may miss important … higher post-unemployment wages but not faster matches, so aggregate matching functions are unaffected by scale. …

Reduced-form tests of scale effects in markets with search, run when aggregate matching functions are estimated, may …

Reduced- form tests of scale effects in markets with search, run when aggregate matching functions are estimated, may …

Reduced-form tests of scale effects in markets with search, run when aggregate matching functions are estimated, may …Abstract Reduced-form tests of scale effects in markets with search, run when aggregate matching functions are … response of reservation wages. Keywords: Job search, economies of scale, matching, aggregate matching functions, wage offer …