We consider the standard two-stage game of R&D and Cournot competition with ex ante identical firms but depart from the literature in assuming that R&D is characterized by mildly, instead of strongly, decreasing returns to scale. We establish that only extreme R&D levels are possible at...

Given a general utility function and income distribution, we compare two systems of income redistribution: unemployment benefits (UB) conditional on not working and basic income (BI) available to everyone. Based on strong empirical evidence we first focus on extensive margins of labor supply....

We compare two systems of income redistribution: unemployment benefits (UB) and basic income (BI). First, for a simple utility function, with both intensive and extensive margins, the unemployed are likely better off with pure BI than pure UB, regardless of labour supply elasticity and wage...

Do workers benefit from the education of their co-workers? We examine this question first by introducing a model of learning, which argues that educated workers may transfer part of their general skills to uneducated workers, and then by examining detailed matched employer-employee panel data...

Abstract: Should two–band income taxes be progressive given a general income distribution? We provide a negative answer under utilitarian and max-min welfare functions. While this result clarifies some ambiguities in the literature, it does not rule out progressive taxes in general. If we...

Should two-band income taxes be progressive given a general income distribution? We provide a negative answer under utilitarian and max-min welfare functions. While this result clarifies some ambiguities in the literature, it does not rule out progressive taxes in general. If we maximize total...

We compare two systems of income redistribution: unemployment benefits (UB) and basic income (BI). First, for a simple utility function, with both intensive and extensive margins, the unemployed are likely better off with pure BI than pure UB, regardless of labour supply elasticity and wage...

Given a general utility function and income distribution, we compare two systems of income redistribution: unemployment benefits (UB) conditional on not working and basic income (BI) available to everyone. Based on strong empirical evidence we first focus on extensive margins of labor supply....

There is much evidence that relative income concern reduces subjective wellbeing and raises labour supply – 'keeping up with the Joneses' (KUJ), while increasing use of social media and growing inequality encourage comparison. Models with one or two agent –types generally miss the policy...