Searching for external knowledge has frequently been characterized as crucial for firm success. However, little is known about how the direction of search strategies influences innovation performance. In this…

Observational studies have become a major research methodology in scienti c disciplines where experiments are hard to perform. These most notably include the health sciences, social sciences and…

We present evidence for a highly significant interaction between state dependence in individual unemployment risk and the business cycle. The disadvantage from having been unemployed in the previous period is…

Ausdauer und Leistungsintensität im Handlungsablauf, Motivation, sprachliche, logische und motorische Fähigkeiten, Gedächtnisleistungen ebenso wie die Fähigkeit zur Verarbei-tung von Informationen sind im Schul-…