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We use a quantile regression approach to estimate the e¤ects of age, gender, research funding, teaching load and other observed characteristics of academic researchers on the full distribution of research performance, both in its quantity (publications) and quality (citations) dimension. Exploiting the panel nature of our dataset, we estimate a correlated random-e¤ects quantile regression model, accounting for unobserved heterogeneity of researchers. We employ recent advances in quantile regression that allow its application to count data. Estimation of the model for a panel of biomedical and exact scientists at the KU Leuven in the period 1992-2001 shows strong support for our quantile regression approach, revealing the di¤erential impact of almost all regressors along the distribution. We also …nd that variables like funding, teaching load and cohort have a di¤erent impact on research quantity than on research quality.

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This analysis contributes to the understanding of the role of basic science in generating breakthrough inventions in the pharmaceutical industry. Recognizing the within-firm heterogeneity of inventive activities, we look not only at the firm level, but also at the firm-technology level for characteristics determining breakthroughs. A key finding is that firms pursuing basic science are more likely to produce breakthrough inventions. At the same time, doing more basic science in science disciplines that are closely linked to a given technology domain does not increase the likelihood of BTs in that particular technology. The insignificance of basic science intensity at the technology level, coupled to the significance at the firm level, suggests that the breakthrough rewards from science capacity are not reaped in the technology areas immediately involved in basic science, but in other areas of the technology portfolio of the firm. Our findings are consistent with the view of science as a map to span processes of local search and the wider applicability of scientific insights.

SUMMARYWe analyze the decision whether to participate and where and what to study in a public system of higher education, based on a unique dataset of all eligible high school pupils in an essentially closed region (Flanders). We find that pupils perceive the available institutions and programs as close substitutes relative to the outside option. This implies an ambiguous role for travel costs: they hardly affect the participation decision, but have a strong impact on the decision where and what to study. To illustrate how our empirical results can inform the debate on reforming public systems, we assess the effects of tuition fee increases. Uniform cost-based tuition fee increases achieve most of the welfare gains; the additional gains from fee differentiation are relatively limited. These welfare gains are quite large under conservative assumptions on the social cost of public funds, and there is a substantial redistribution from students to outsiders.