Browsing Working papers by Author "Iversen, Jens"
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Iversen, Jens; Malchow-Møller, Nikolaj; Sørensen, Anders (Frederiksberg, 2009)[More information][Less information]
Abstract: We argue that formal schooling and wage-work experience are complementary types of human capital for entrepreneurs. Strong empirical support is found for this hypothesis as the interaction term between schooling and actual wage-work experience enters positively and significantly in a Mincer equation, whereas the effect of schooling in the absence of wage-work experience is insignificant. These results are extremely robust towards more flexible specifications, including fixed-effects estimations dealing with unobserved heterogeneity. For wage workers, the interaction term is negligible, confirming that the complementarity is a distinct characteristic of entrepreneurial human capital. URI: http://hdl.handle.net/10398/7990 Files in this item: 1
WP_Iversen_Malchow_Sorensen.pdf (256.4Kb) -
Heterogeneity and Non-LinearitiesIversen, Jens; Malchow-Møller, Nikolaj; Sørensen, Anders (Frederiksberg, 2010)[More information][Less information]
Abstract: The returns to education in self-employment are addressed in four different specifications of the relationship between log income and years of schooling. The specifications range from a standard Mincer equation with a constant percentage increase in income to an additional year of schooling to the most flexible specification with dummy variables for the different number of years of schooling split into different types of education. Based on the more flexible specifications, important non-linearities and heterogeneity in the returns to education in self-employment are found. These results are robust across different estimation methods: OLS; Heckit correction models to handle sample selection; and IV to deal with the potential endogeneity of years of schooling. Moreover, the results are insensitive to the use of different sample years, different definitions of self-employment, and different income measures for the self-employed. URI: http://hdl.handle.net/10398/8225 Files in this item: 1
Sorensen_WP_2010.pdf (411.9Kb)
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