Die Bewertung der Indexierungsqualität bzw. –güte ist ein grundlegendes Problem von manuellen und automatischen Indexierungsverfahren, nicht erst seit der zunehmenden Digitalisierung und des damit einhergehenden Informationsstrukturierungsproblems. Diese Arbeit befasst sich mit der...

The selection of information on the internet is causing massive concerns and discussion. Critics fear the polarization of internet users and warn of echo chambers and filter bubbles. Especially search engines and social networking sites are being held responsible: as information intermediaries...

This paper presents evidence that the spread between the marginal product of capital and the return on financial assets is mich higher in poor than in rich countries. A model with costly intermediation is developed. In this economy, individuals choose at each instant whether to work or to...

This paper reviews the theory of foreign direct investment (FDI), focusing on an apparent con‡ict between theory and recent trends in the globalized world. The bulk of FDI is horizontal rather than vertical, but horizontal FDI is discouraged when trade costs fall. This seems to conflict with...

Die wirtschaftliche Lage des Nord-Ostsee-Kanals ist durch eine fortlaufende Abnahme der Zahl der Passagen und eine Verminderung der abgabenpflichtigen Schiffstonnage gekennzeichnet; die durch den Kanal beförderte Ladungsmenge schwankt etwa um das Niveau von 1970. Der ungünstige Trend hat...

In this paper we analyse the employment implications of firing restrictions. We find that when a recession is expected and the trend rate of productivity growth is small, a rise in firing costs affects mainly the hiring decision. Thus there is a negative effect on average employment. When, on...

Empirical analyses of Cagan?s money demand schedule for hyper-inflation have largely ignored the explosive nature of hyper-inflationary data. It is argued that this contributes to an (i) inability to model the data to the end of the hyper-inflation, and to (ii) discrepancies between ?estimated?...

Empirical analyses of Cagan's money demand schedule for hyper-inflation have largely ignored the explosive nature of hyper-inflationary data. It is argued that this contributes to an (i) inability to model the data to the end of the hyper-inflation, and to (ii) discrepancies between 'estimated'...