Dr Matthias Parey

We show the importance of Berkson errors for demand estimation with nonseparable unobserved heterogeneity.

e develop a consistent estimator using external information on the true distribution of prices. Examining the demand for gasoline in the U.S., accounting for Berkson errors is found to be quantitatively important for estimating price effects and for welfare calculations. Imposing the Slutsky shape constraint greatly reduces the sensitivity to Berkson errors.

Overall, high-skilled individuals form an important group of potential migrants because of both their relatively high rates of mobility and their potential contribution to the host economy. Studying migrant selection in this context is particularly useful because these migrants face low formal barriers to migration and are unlikely to be credit constrained. The observed selection patterns underline the relevance of the Roy/Borjas model in this setting.

We derive conditions under which a demand function with nonseparable unobserved heterogeneity in tastes can be estimated consistently by nonparametric quantile regression subject to the shape restriction from the Slutsky inequality.

This paper presents a test for exogeneity of explanatory variables in a nonparametric instrumental variables (IV) model whose structural function is identified through a conditional quantile restriction. Quantile regression models are increasingly important in applied econometrics.

This paper studies the intergenerational effects of maternal education on children's cognitive achievement, behavioural problems, grade repetition, and obesity, using matched data from the female participants of the National Longitudinal Survey of Youth 1979 (NLSY79) and their children.

This paper develops a new method for estimating a demand function and the welfare consequences of price changes.

This paper develops a new method for estimating a demand function and the welfare consequences of price changes.

This paper develops a new method for estimating a demand function and the welfare consequences of price changes.

We investigate the effect of studying abroad on international labour market mobility later in life for university graduates.

We investigate the effect of studying abroad on international labor market mobility later in life for university graduates.

There is a striking increase in inequality in children's home environments over the last 50 years (McLanahan, 2004). These are measured as differences in age of mothers of young children (below 5), maternal employment, single motherhood, divorce during the first 10 years of marriage, father's involvement, and family income, for mothers with different levels of education. This trend is cause for great concern because the home environment is probably the best candidate for explaining inequality in child development.