Using a data set of historical battles from 1600 to 1973, this paper analyzes the empirical determinants of tactical success in modern war. Based on a reduced form approach we consider key elements of military theory as factors in the production of combat success, formalized in a military...

We estimate the effect of class size on student performance in 18 countries, combining school fixed effects and instrumental variables to identify random class-size variation between two adjacent grades within individual schools. Conventional estimates of class-size effects are shown to be...

The demographic history of the Jews in the Middle Ages may be characterized by two main phenomena: i) a sharp drop in the number of Jews until the beginning of the modern period, due mainly to conversions; and, ii) early urbanization. Until now, these features have been analyzed as primarily...

There is no empirical evidence that trade exposure per se increases child labour. As trade theory and household economics lead us to expect, the cross-country evidence seems to indicate that trade reduces or, at worst, has no significant effect on child labour. Consistently with the theory, a...

In Deutschland wird jährlich rd. ein Prozent der volkswirtschaftlichen Wertschöpfung (BIP) für aktive Arbeitsmarktpolitik (AAMP) ausgegeben, die im ursprünglichen Sinn eigentlich Investitionen darstellen sollten. Aus Ländern mit ähnlich hohen Ausgaben für aktive Arbeitsmarktpolitik - aber...

International bank portfolios constitute a large component of international country portfolios. Yet, their response to macroeconomic conditions and their impact on the international transmission of business cycles developments remains largely unexplored. We use a novel dataset on banks?...

Macroeconomic risks could magnify individual bank risk. Mitigating the influence of economy-wide risks on banks could therefore be very important to maintain a smooth-running banking system. In this paper, we explore the extent to which macroeconomic risks affect banks. We use a bank-level...

Portfolio flows channeled via institutional investors were the most dynamic capital flows to emerging markets in the 1990s. We use an asymmetric information framework to derive five propositions, to integrate empirical evidence and to suggest policy implications. Opaque information in emerging...

Die Gesundheitssysteme stehen weltweit zur Diskussion. Kann internationales Benchmarking ganzer Gesundheitssysteme dazu beitragen, Lösungen für deren Probleme zu finden? Diese Arbeit stellt drei aktuelle Ansätze solcher Vergleiche vor. Hierbei werden die Erkenntnisse ebenso erläutert wie die...