This paper estimates a professor's value added to a postgraduate student's research achievement growth using unique panel data on matched advisor-advisee pairs in a world-leading physics graduate program. To address an identification problem related to the endogenous selection of advisors and...

Using longitudinal data from the China Health and Nutrition Survey, we examine how individual wages change in line with the share of college graduates in a given province. The individual fixed effect model shows that the external returns to education in China appear to be zero. We estimate an...

Good understanding on the human capital externalities is important for both policy makers and social science researchers. Economists have speculated for at least a century that the social returns to education may exceed the private returns. In this paper, using the longitudinal data from China...

Using longitudinal data from the China Health and Nutrition Survey, we examine how individual wages change in line with the share of college graduates in a given province. The individual fixed effect model shows that the external returns to education in China appear to be zero. We estimate an...

There is a rich history of using data from twins and from adoptees to control for genetic influences and thereby examine the impact of environment on children's outcomes. The behavioral genetics model is the workhorse of this literature and for a variety of outcomes including IQ scores and...

This paper investigates the causal effect of job training on wage rates in the presence of firm heterogeneity. When training affects worker sorting to firms, sample selection is no longer binary but is "multilayered". This paper extends the canonical Heckman (1979) sample selection model - which...

Since the late 1990s, the European higher education system has had to face deep structural changes. With the public authorities seeking to create an environment of quasi-markets in the higher education sector, the increased competition induced by recent reforms has pushed all publicly financed...

This dissertation consists of six self-contained chapters that are related to the behavior of firms and politicians in a broader sense. After an introduction to the topic, the first part of the dissertation elaborates on how institutional and political framework conditions influence the behavior...

This paper aims to investigate the effect of knowledge characteristics on the total factor productivity of firms developing drugs in the pharmaceutical industry. We decompose knowledge into knowledge associated with the technological firm portfolio and knowledge related to R&D projects, which...

Based on a panel data set of Japanese manufacturing firms in research-intensive industries, we investigate quantitatively the extent to which debt outstandings in the 90s affected the firm’s R&D activities. We find that massive debt outstandings had significantly negative effect on R&D...