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...

Since China promulgated new minimum wage regulations in 2004, the magnitude and frequency of changes in the minimum wage have been substantial, both over time and across jurisdictions. This paper uses county-level minimum wage panel data and a longitudinal household survey from 16 representative...

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...

The paper links finance theory to labor economics and political economy in the context of migration and immigration policy. Most research treating the impact of immigration has focused on the consequences for employees as measured by wages, earnings, and employment. Less is known about the...

We present a theorem helpful in estimating the mean and variance of a linear function with arbitrary multivariate randomness in its coefficients and variables. We derive a generalized decomposition result from two random linear functions in which the result can be applied to most models using...

In the book Myth and Measurement, Card and Krueger (1995) examine the economic impact of the 1989 minimum wage hike on the welfare of 110 firms which employ a disproportionate number of minimum-wage workers. Their results show mixed evidence that excess returns associated with news about the...

Using 1990, 2000 censuses and a 2010 survey, I examine the economic performance of ethnically Chinese immigrants from mainland China, Hong Kong and Taiwan (CHT) in the U.S. labor market. Since 1990, relative wages of CHT migrants have been escalating in contrast to other immigrants. I show these...