Conventional models of earnings assume that the occupational pay structure reflects the distribution of marginal productivities. Although ubiquitious in the literature, the underlying hypothesis that wages equal marginal products rests on weak empirical footing: extant studies from the 1970s...

This article investigates the impact of wage dispersion on firm productivity in different working environments. More precisely, it examines the interaction with: (i) the skills of the workforce, using a more appropriate indicator than the standard distinction between white- and blue-collar...