Das ifo Geschäftsklima ist ein Konjunkturindikator, der aus den Ergebnissen der monatlichen Unternehmensbefragungen des ifo Instituts berechnet wird. Die Antworten zu zwei Fragen gehen in diesen Indikator ein: die Bewertung der aktuellen Geschäftslage sowie die Erwartung hinsichtlich der...

Peter M. Wiedemann, Udo Erdmann und Frederik Freudenstein, University of Wollongong, TIBER und KIT, stellen die Ergebnisse einer Umfrage vor, die sich mit der Bewertung einzelner erneuerbarer Energieformen befasst, und zwar mit Solarenergie, Windenergie an Land und auf See, Wasserkraft und...

In this paper, we propose a new estimation strategy that uses the variation in success between the male and the female national soccer team within a country to identify the causal impact of gender equality on women’s soccer performance. In particular, we analyze whether within-country...

When properly implemented, Randomized Controlled Trials (RCT) can achieve a high degree of internal validity. Yet, if an RCT is to inform policy interventions that extend beyond the experimental population, it is critical to establish external validity. In this paper, we first present a...

The European Union Statistics on Income and Living Conditions (EU-SILC) is a rotational panel provided by Eurostat that covers important variables over all EU Member States. Unfortunately, Eurostat provides separate data sets which do not cover all waves. Furthermore, information on monthly...

We propose a fast approximate Metropolis-Hastings algorithm for large data sets embedded in a design based approach. Here, the loglikelihood ratios involved in the Metropolis-Hastings acceptance step are considered as data. The building block is one single subsample from the complete data set,...

When properly implemented, Randomized Controlled Trials (RCT) achieve a high degree of internal validity. Yet, if an RCT is to inform policy, it is critical to establish external validity. This paper systematically reviews all RCTs conducted in developing countries and published in leading...

Many policy interventions in the environmental sector aim at changing environmental preferences, because these provide the basis for adopting environmental conservation behavior or technologies. To evaluate these changes, standard measurement tools in survey-based impact evaluations have their...

This paper reports the results of a questionnaire study used to explore the economic understanding, normative positions along the egalitarian-libertarian spectrum, and the party preferences of a large student sample. The aim of the study is both to find socio-economic determinants of normative...