This paper studies how the spouse’s productivity in the labor market affects one’s individual earnings when married. Theoretically, the high productivity of a spouse in a marriage could affect the other spouse’s earnings in two ways: negatively through specialization and division of labor,...

A positive association between spousal education and individual earnings is a common empirical finding (e.g., Benham, 1974 and Rossetti and Tanda, 2000). The two most common explanations for this are sample selection and crossproductivity effects. Can spouses really benefit from each other’s...

The thesis consists of a summary and four self-contained papers. Paper [I] examines the effects of interregional migration on gross earnings in married and cohabiting couples. In particular, we examine the link between education level and income gains. We find that pre-migration education level...

We develop a method for empirically measuring the difference in carbon footprint between traditional and online retailing (“e-tailing”) from entry point to a geographical area to consumer residence. The method only requires data on the locations of brick-and-mortar stores, online delivery...

This paper introduces two different non-parametric tests for panel unit root based on the wavelet decomposition of time series which may be used in the presence of cross-sectional dependency and an unknown structural break in the data. These tests are compared with the parametric IPS test...