Abowd, John M.; Kramarz, Francis; Margolis, David N. - National Bureau of Economic Research (NBER) - 1994
most important source of wage variation in France. Firm-effects, while important, are not as important as person …-effects. At the level of firms, we find that enterprises that hire high-wage workers are more productive but not more profitable … intensive. We also find that person-effects explain 92% of inter-industry wage differentials. …