Many instrumental variable (IV) regressions include control variables to justify (conditional) independence of the instrument and the potential outcomes. The plausibility of conditional IV independence crucially depends on the timing when the control variables are determined. This paper...

Does universal preschool constitute an effective policy tool to promote the development and integration of children from minority groups? In the light of rising cross border migration and increasing ethnic variation in many developed countries, we address this question for the children of the...

This paper investigates the finite sample performance of a comprehensive set of semi- and nonparametric estimators for treatment and policy evaluation. In contrast to previous simulation studies which mostly considered semiparametric approaches relying on parametric propensity score estimation,...

Cet article analyse les rémunérations des dirigeants des sociétés suisses cotées en bourse entre 2007 et 2012. Dans un premier temps, nous exposons les différentes composantes du revenu ainsi que le rôle de chaque élément avant de jeter un regard critique sur le contenu informationnel...

Eine gut funktionierende Nachwuchsförderung bildet die Basis für spätere Spitzenleistungen im Sport und wird darum von Verbänden als eine der wichtigsten Aufgaben überhaupt angesehen. Der Erfolg dieser lässt sich aber durch das Verbandsmanagement nur bedingt steuern, wie eine am VMI...

Post offices, inherited from the Industrial Revolution, were monolithic telephone and postal administrations. They were intimately linked to the fabric of nations and made significant contributions to state finances. From the 1960s onwards, integrators, such as UPS and FEDEX, started offering...

We present a new method to measure the intraday relationship between movements of implied volatility smiles and stock returns. It is based on an enhanced smile regression model which captures patterns in the intraday data which have not yet been reported in the literature. Using transaction data...

Wovon hängt ab, ob es einem Berufsverband gelingt, Mitglieder zu binden und damit einen hohen Organisationsgrad zu erreichen? Eine Befragung von insgesamt 850 gegenwärtigen und ehemaligen Mitgliedern aus den 13 Sektionen eines Verbands mit unterschiedlichem Leistungsangebot in seinen Sektionen...

Les études sur les carrières de dirigeants ou top managers visent traditionnellement à souligner les influences des cadres institutionnels nationaux sur les parcours de carrières. Plus rares sont les études portant sur les carrières de top managers internationaux. Bien que la figure du...

In the three-factor model of Fama and French (1993), portfolio returns are explained by the factors Small Minus Big (SMB) and High Minus Low (HML) which capture returns related to firm capitalization (size) and the book-to-market ratio (B/M). In the standard approach of the model, both the test...