Positive assortative matching implies that high productivity workers and firms match together. However, there is almost no evidence of a positive correlation between the worker and firm contributions in two-way fixed-effects wage equations. This could be the result of a bias caused by standard...

We estimate how much firms differentiate pay premia between regular and outsourced workers. We study temp agency work arrangements where pay setting has previously escaped measurement because existing datasets do not report links between user firms (the workplaces where temp workers perform...