After the fall of the Berlin Wall on November 9, 1989, and the collapse of the German Democratic Republic, a sudden, unexpected, and massive influx of East German migrants hit the entire West German labor market. The context is well suited for investigating whether immigration influences natives' wages and how the effects depend on product and labor market conditions. We propose direct measures of potential migration with exogenous variation, compare migrants to natives with similar capabilities, and segment the labor market along predetermined margins. We find that immigration can have negative effects on the wages of natives. These effects surface when product and labor markets are competitive but not under regulations that restrict the entry of firms and provide workers with a strong influence on firms' decision making.

In this study, we explore a new approach for analyzing changes in the gender pay gap that uses direct measures of job tasks and gives a comprehensive characterization of how work for men and women has changed in recent decades. Using data from West Germany, we find that women have witnessed relative increases in nonroutine analytic and interactive tasks. The most notable difference between the genders is, however, the pronounced relative decline in routine task inputs among women, driven, at least in part, by technological change. These changes explain a substantial fraction of the closing of the gender wage gap.