Finding proper policy instruments to promote productivity growth features prominently on the Lisbon agenda and is central in many national as well as European policy debates. In view of the increased mobility of high-skilled workers in Europe, ongoing globalization and increased interregional...

We analyze the impact of obsolescence of economic inventions by incorporating maintenance costsin the endogenous growth model of expanding product varieties. This contrasts with the existingliterature, which ignores maintenance costs and uses the model of quality improvements todescribe...

Which signals are important in gaining attention in science? For a group of 1,371 scientific articles published in 17 demography journals in the years 1990-1992 we track their influence and discern which signals are important in receiving citations. Three types of signals are examined: the...

The provision of non-pecuniary incentives in education is a topic that has received much scholarly attention lately. Our paper contributes to this discussion by investigating the effectiveness of grade incentives in increasing student performance. We perform a direct comparison of the two most...

Although the literature on the effectiveness of child care centers in developing countries is thin, most of the studies have concluded that the provision of these services are beneficial to enhance the development of poor children at early ages. Using different matching techniques, the results...

This paper examines the effect of a housing assistance program on school enrollment, child labor and poverty reduction among poor families in Ecuador. Administrative data is merged to a household panel to link the history of a voucher application with socioeconomic information. Two empirical...

This discussion paper resulted in an article in <I>Economics of Education Review</I>. Volume 38, pages 51-63.<P> Recent studies for primary and secondary education find positive effects of the share of girls in the classroom on achievement of boys and girls. This study examines whether these results can...</p></i>

Using a discontinuity in the funding scheme, we evaluate the impact of home visitsand child care centers on poor children and mothers in Ecuador. We find thathome visits are beneficial for children's cognitive outcomes and health and for mothers'psychological well-being but reduce mothers' labor...

This discussion paper led to a publication in the <I>Journal of Health Economics</I> (2009). Vol. 28, pages 109-131.<P> This paper investigates the impact of parental education on child health outcomes. To identify the causal effect we explore exogenous variation in parental education induced by a...</p></i>

We adopt a structural time series analysis to investigate the impact of parole abolition and sentence reform in Virginia on reported crime rates. The Commonwealth of Virginia abolished parole and reformed sentencing for all felony offences committed on or after January 1, 1995. To examine the...