Die Forschungsdateninfrastruktur in Deutschland ist vielschichtig und wird laufend verbessert. Um jedoch international wettbewerbsfähig zu sein, muss die deutsche Dateninfrastruktur weiterentwickelt werden. Es dient dem Gemeinwohl, wenn es Forschenden ermöglicht wird, auf Daten aus...

Der Zugang zu wirtschafts- und sozialwissenschaftlichen Forschungsdaten bleibt inDeutschland hinter den internationalen Standards zurück. Eine Umfrage unter den Mitgliederndes Vereins für Socialpolitik ergab eine große Unzufriedenheit mit dem Status quo. DieBeiträge des Zeitgesprächs geben...

As stated in the preamble of the founding Treaty of the European Economic Community (EEC) of 1957, the essential goal of European integration, is to improve the living and employment situation (usually measured in terms of per-capita GDP and unemployment rate) of EU citizens. From an economic...

Consider a stochastic frontier model with one-sided inefficiency u, and suppose that the scale of u depends on some variables (firm characteristics) z. A one-step model specifies both the stochastic frontier and the way in which u depends on z, and can be estimated in a single step, for example...

The Family Support Act allows states to reimburse child care costs up to the 75th percentile of local market price for child care. States must carry out surveys to estimate these 75th percentiles. This estimation problem raises two major statistical issues: (1) picking a sample design that will...

This paper provides a new unit root test based on an alternative parameterization which has previously been considered by Bhargava (1986). This parameterization allows for trend under both the null and the alternative, without introducing any parameters that are irrelevant under either. This is...