Stoyanov, A.

worker productivity spillover fi rms spillover potentials potential productivity gap worker mobility share equation result mobility productivity gains table percent knowledge column control estimate capital level measure effect function wage premium characteristic industry shock labor input fficient period output wage gains production premium experience representative fi rm economic coefficient group estimation sample time period specification fication manufacturing statistic investment productivity shocks moment conditions 1 percent level β k kit 5 percent level 10 percent level correlation section study regression journal 2 stoyanov speci workforce coe fficient estimator β m mit fi rm i difference value firm level representative speci fication skill error sector productivity shock year t method university factor