Die Menge der für Forschungszwecke zur Verfügung stehenden Daten vergrößert sich beständig (King, 2011). Jedoch werden unter Daten in den verschiedenen wissenschaftlichen Disziplinen ganz unterschiedliche Dinge gefasst. Aus dem lateinischen kommend bezeichnet ein Datum zunächst einmal...

While policy measures affect the welfare of nations, the practice of policy advice is determined by complex rules. Evidence-based scientific policy advice gives weight to hard empirical facts and restrictions. The lecture discusses challenges and conditions for success and provides suggestions...

International migration of people is a momentous and complex phenomenon. Research on its causes and consequences, requires sufficient data. While some datasets are available, the nature of migration complicates their scientific use. Virtually no existing dataset captures international migration...

We present the operationalized Toll Index, which is a new type of early indicator for the German business cycle. We present the basic idea and document the power of the indicator for the purpose of nowcasting. The data will be regularly available at the IDSC, the data bank center of IZA and will...

The current economic crisis requires fast information to predict economic behavior early, which is difficult at times of structural changes. This paper suggests an innovative new method of using data on internet activity for that purpose. It demonstrates strong correlations between keyword...