strong cross-firm association of FDI wage premia with similar differentials in productivity. …

-existent compensating wage differentials. The use of twin data allows us to remove otherwise unobserved productivity differences that were …

for earnings mobility and growth; for the majority, however, self-employment remains constrained to low-productivity … labor away from these low-productivity activities into higher value added sectors. …

fee-for-service basis. Since wage rates are exogenous, earning differentials are driven by differences in productivity. We …-specific characteristics (particularly earnings differentials) on physician location decisions. We find, among other things, that high-productivity … physicians (based on unobservables) are more likely to migrate to provinces where the productivity premium is greater, while low-productivity …