Developing countries have increasingly opened their economies to trade. Research about
trade policy in developed countries focuses on a bottom-up process by identifying economic …

In addition to the mainstream education system many students draw on private tutoring to
improve their academic achievement. However, evidence about the effectiveness of private …

The estimation of causal effects has a revered place in all fields of empirical political
science, but a large volume of methodological and applied work ignores a fundamental fact …

In the field of environmental policy, randomized evaluation designs are rare. Thus
researchers typically rely on observational designs to evaluate program impacts. To assess …

A significant and influential body of research suggests that electoral systems influence
legislators' behaviour. Yet, individual legislators are potentially motivated by other concerns …

The present study investigates school context effects on psychosocial characteristics
(academic self-concept, peer relations, school satisfaction, and school anxiety) of high …

OBJECTIVES: Pharmacogenetic testing as a means of guiding treatment decisions is
beginning to see wider clinical use in psychiatry. The utility of this genetic information as it …

Although enterprise support policies continue to be favored by policymakers in the
European Union (EU) as tools for regional revitalization, there is as yet insufficient empirical …

International trusteeship is widely touted as a solution to the problem of failed states, an
extreme form of limited statehood. Current theories of legitimacy and statebuilding suggest …

Objective A high body mass index has been suggested to be protective in patients with
coronary artery disease and in those undergoing coronary artery bypass grafting (CABG) …