The paper analyzes factors that influence the adoption of e-learning and gives an example of how to forecast technology adoption based on a post-hoc predictive segmentation using a classification and regression tree (CART). We find strong evidence for the existence of technological...

We use a sample of 18 countries to study what variables have a significant impact on an indi-vidual?s decision to start a new business and classification and regression trees for an accurate interpretation of the data. Our results support existing literature suggesting the existence of strong...

The paper analyzes the adoption of various e-business technologies. Strong empirical evidence is found for the existence of increasing returns to adoption due to indirect network externalities between related technologies. If a company is close to the technological frontier, its probability of...

We develop a polygenic index for individual income and examine random differences in this index with lifetime outcomes in a sample of ~35,000 biological siblings. We find that genetic fortune for higher income causes greater socio-economic status and better health, partly via intervenable...

Two family-specific lotteries take place during conception— a social lottery that determines who our parents are and which environment we grow up in, and a genetic lottery that determines which part of their genomes our parents pass on to us. The outcomes of these lotteries create inequalities...

Die Internetnutzung in Deutschland hat in den letzten acht Jahren einen rasanten Anstieg erlebt. Während es im Frühjahr 1995 in Deutschland gerade einmal 250 000 Internetnutzer gab, waren es im Mai 2003 bereits knapp 39 Millionen. Dies bedeutet, dass aktuell etwa 47 % der gesamten Bevölkerung...

Die Investitionsentscheidungen von Unternehmen für E-Business-Technologien werden von verschiedenen Faktoren beeinflusst. Als wichtigster Faktor für die Investition in eine zusätzliche E-Business-Technologie stellt sich die Zahl der im Unternehmen bereits genutzten E-Business-Technologien...

Im vorliegenden Bericht wird die Frage untersucht, warum die Bevölkerung in einigen Ländern hinsichtlich Unternehmensgründungen aktiver ist als in anderen. So gründen z. B. in den USA jedes Jahr relativ mehr Menschen ein Unternehmen als in Deutschland. Analysiert wird hier der Einfluss von...

A large literature establishes that cognitive and non-cognitive skills are strongly correlated with educational attainment and professional achievement. Isolating the causal effects of these traits on career outcomes is made difficult by reverse causality and selection issues. We suggest a...

A large literature establishes that cognitive and non-cognitive skills are strongly correlated with educational attainment and professional achievement. Isolating the causal effects of these traits on career outcomes is made difficult by reverse causality and selection issues. We suggest a...