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...

There is an inherent tension between traditional norms and survey protocols for quantitative data collected in the developing world. Unexpected interactions between the interviewer and respondent can lead to interviewer effects in the data, particularly in the case of subjective or sensitive...

Child labor statistics are critical for assessing the extent and nature of child labor activities in developing countries. In practice, widespread variation exists in how child labor is measured. Questionnaire modules vary across countries and within countries over time along several dimensions,...

The Millennium Development Goal of halving the incidence of extreme poverty from its 1990 level will be achieved in 2015, and the international development community is now moving to a new goal of ?ending extreme poverty.? However, the data needed to monitor progress remain severely limited....

This paper introduces four versions of an international bilateral migration stock database for 226 by 226 countries and territories. The first three versions each consist of two matrices, the first containing migrants defined by country of birth, that is, the foreign-born population; the second,...

Climate change damage (or, more correctly, impact) functions relate variations in temperature (or other climate variables) to economic impacts in various dimensions, and are at the basis of quantitative modeling exercises for the assessment of climate change policies. This document provides a...

This paper presents an overview and meta-analysis of the effects of water, sanitation, and hygiene interventions around the world. It is based on 136 impact evaluations (randomized and quasi-experimental studies) that explore the effects of water, sanitation, and hygiene interventions on health...