This paper develops the nonparametric identification of models with production complementarities, worker-firm specific disutility of labor and search frictions. Mobility in the model is subject to preference shocks, and we assume that firms can write wage contracts. We develop a constructive...

The factor proportions model, also known as the Heckscher-Ohlin model, is the main neoclassical model of international trade theory. It was developed by Swedish economists Eli Heckscher and Bertil Ohlin in 1920s and 1930s. According to the factor proportions model a country should specialize in...

The factor proportions model, also known as the Heckscher-Ohlin model, is the main neoclassical model of international trade theory. It was developed by Swedish economists Eli Heckscher and Bertil Ohlin in 1920s and 1930s. According to the factor proportions model a country should specialize in...

Up to now, powerful outlier robust tests for linear models are based on M-estimators and are quite complicated. On the other hand, the simple robust classical sign test usually provides very bad power for certain alternatives. We present a generalization of the sign test which is similarly easy...

This paper develops the nonparametric identification of models with production complementarities, worker-firm specific disutility of labor and search frictions. Mobility in the model is subject to preference shocks, and we assume that firms can write wage contracts. We develop a constructive...

We propose a new nonparametric test of stochastic monotonicity which adapts to the unknown smoothness of the conditional distribution of interest, possesses desirable asymptotic properties, is conceptually easy to implement, and computationally attractive. In particular, we show that the test...

We propose a new nonparametric test of stochastic monotonicity which adapts to the unknown smoothness of the conditional distribution of interest, possesses desirable asymptotic properties, is conceptually easy to implement, and computationally attractive. In particular, we show that the test...