This paper examines the properties of instrumental variables (IV) applied to models with essential heterogeneity, that is, models where responses to interventions are heterogeneous and agents adopt treatments (participate in programs) with at least partial knowledge of their idiosyncratic...

In labor markets with worker and firm heterogeneity, the matching between firms and workers may be assortative, meaning that the most productive workers and firms team up. We investigate this with longitudinal population-wide matched employer-employee data from Portugal. Using dynamic panel data...

The issues of persistence in the observed labour market status of men are investigated using the British Household Panel Survey for the period 1991-97. The paper extends previous work in many directions. In particular, problems of endogenous initial conditions, and unobserved heterogeneity, are...

Using linked employer-employee data from the Canadian Workplace and Employee Survey 1999-2004, we provide new evidence on how the cost of absence affects labor supply decisions. We use a particular feature of the data by which total absences are divided into three separate categories: sick paid...

There is a renewed interest in whether land reforms can contribute to market development in Africa and whether land reforms can be pro-poor. This paper uses unique household panel data from Tigray region in Ethiopia to assess the impact of the 1998 low-cost land registration and certification...

Using administrative data records from the Spanish Employment Agency we examine whether or not there is evidence of state dependence in unemployment under benefits in Spanish young workers. For this fact, we use a mixed proportional hazard model that allows for state dependence through lagged...

This paper postulates that the effect of unemployment benefits on the hazard rates changes considerably using a traditional duration model that uses only unemployment insurance (UI) data, or deals with unemployment assistance (UA) as a mere extension of UI, instead of an extra time duration...

This paper investigates preference heterogeneity of wine consumers by using latent class models based on attitudinal questions. Such responses turn out to be an important source of additional information when the goal is to identify different groups of people with a similar wine preference...

The relationship between income and health has been widely established. However, there are some issues which need to be addressed in order to study accurately the socio-economic gradient in health. Firstly, there is a specific issue linked to the dynamic nature of health. The current health...

This study extends extant research on prenatal care and birthweight to the South American country of Uruguay. The data represent a population of poor women from a less-developed country with a health care system that provides both prenatal and obstetric care free of charge. We find a positive...