I apply Ricardo’s principle of comparative advantage to a theory of factor substitutability in a model with a continuum of worker and job types. Highly skilled workers have a comparative advantage in complex jobs. The model satisfies the distance‐dependent elasticity of substitution (DIDES)...

We model entrepreneurship and the emergence of firms as a result of simultaneous bidding for labor services among heterogeneousagents. Unique to our approach is that occupational choices, jobmatching and organizational forms are determined simultaneously, sothat the opportunity costs of...

This paper examines the effects of taxation on long-run growthin a two-sector endogenous growth model with (i) physical capitalas an input in the education sector and (ii) leisure as anadditional argument in the utility function. The analysis of theeffects of taxation - including income...

We hypothesize, and test for, a negative effect of the length of the commute on worker’s productivity, by examining whether the commute has a positive effect on worker’s absenteeism. Our estimates for Germany indicate that commuting distance induces absenteeism with an elasticity of about...

This discussion paper resulted in a publication in 'Economics and Human Biology' (forthcoming).<P> Taller individuals typically have occupations with higher social status and higher earnings than shorter individuals. Further, entrepreneurship is associated with high social status in numerous...</p>

We investigate the manifold posed question: To what extent does investment in human and social capital, besides the effect of talent, enhance entrepreneurial performance? We distinguish between three different performance measures: survival, profits, and generated employment. On the basis of the...

We examine how multitasking affects performance and check whether women are indeed better at multitasking. Subjects in our experiment perform two different tasks according to three treatments: one where they perform the tasks sequentially, one where they are forced to multitask, and one where...

We estimate the impact of schooling and capital constraints at the time of startup on the performance of Dutch entrepreneurial ventures, taking into account the potential endogeneity and interdependence of these variables. Instrumental variable estimates indicate that a 1 percentage point...

How valuable are cognitive and social abilities for entrepreneurs’ incomes as compared to employees? We answer three questions: (1) To what extent does a composite measure of ability affect an entrepreneur's earnings relative to employees? (2) Do different cognitive abilities (e.g. math...

We study optimal linear income taxation in a model with heterogeneous agents where earnings potentials are endogenously determined through human capital accumulation. Agents differ in initial conditions and ability to learn. Capital market imperfections prevent poor agents to invest optimally in...