Researchers often identify degree effects by including degree attainment (D) and years of schooling (S) in a wage model, yet the source of independent variation in these measures is not well understood. We argue that S is negatively correlated with ability among degree-holders because the most...

Capital deepening may affect the evolution of the wage differential between skilled and unskilled workers differently in countries with different labor market institutions. If labor market institutions raise the relative wage of unskilled workers in Germany, firms have incentives to invest...

This paper examines the relationship between product demand and the pattern of rising skill premia and rising employment of skilled workers in the US and the UK since the 1980s. If more skilled workers demand more skill-intensive goods, then an increase in relative skill supply will also induce...

Many contributions suggest that earnings instability has increased during the 1980s and1990s. This paper develops and estimates an on-the-job search model of the labor market tostudy the contribution of wage inequality and job mobility in explaining earnings instability. Tostudy the evolution...

This paper analyses the compensatory behavior of smokers. Exploiting data on cotinine concentration a metabolite of nicotine measured in a large population of smokers over time, we show that smokers compensate tax hikes by extracting more nicotine per cigarette. Our study makes two important...

This paper shows that smoking intensity, i.e. the amount of nicotine extracted per cigarette smoked, responds to changes in excise taxes and tobacco prices. We exploit data covering the period 1988 to 2006 across many US states. Moreover, we provide new evidence on the importance of cotinine...

Most of the literature on the evaluation of training programs focuses on the effect of participation on a particular outcome (e.g. earnings). The treatment is generally represented by a binary variable equal to one if participation in the program occurs, and equal to zero if no participation...

We investigate whether a causal interpretation of the robust association between cognitive skills and economic growth is appropriate and whether cross-country evidence supports a case for the economic benefits of effective school policy. We develop a new common metric that allows tracking...