Social scientists are often interested in assessing relative changes between two groups over time, for example, the convergence of black-white wages from 1940 to 1990. In such situations, we need a control group for both treatment groups to remove biases resulting from time trends and unobserved...

We investigate the relative contributions of migrant and native households to welfare states. Using two step Oaxaca-Blinder decompositions that control for selection into benefit take-up, we are able to identify the individual variables contributing to differences in welfare receipt by native...

This paper presents evidence that since 1980, relative to other immigrants, the earnings of Taiwanese immigrants have grown rapidly as they assimilate into the U.S. economy. Our estimates indicate that the rising returns to education, pre-migration experience and hours worked per week play...

This paper proposes a comprehensive, path-independent decomposition formula of changes into ceteris paribus effects and interaction effects. The formula implies a reassessment of sequential decomposition methods that are widely used in the literature and that are restrictive in how they treat...