Whereas in the past ‘free’ and ‘illegal’ were nearly synonymous in the music industry, consumers nowadays face a myriad of music platforms with widely different characteristics in terms of business model (advertising supported, fee based, etc.), delivery mode (streaming, downloading,...

Innerhalb der ersten Förderphase ist von den Forschungsdatenzentren der Statistischen Ämter des Bundes und der Länder eine Dateninfrastruktur geschaffen worden, die umfangreiche wissenschaftliche Analysen amtlicher Mikrodaten aus allen Bereichen zulässt. In diesem Aufsatz wird insbesondere...

Innerhalb der ersten Förderphase ist von den Forschungsdatenzentren der Statistischen Ämter des Bundes und der Länder eine Dateninfrastruktur geschaffen worden, die umfangreiche wissenschaftliche Analysen amtlicher Mikrodaten aus allen Bereichen zulässt. In diesem Aufsatz wird insbesondere...

Stock market volatility has been omnipresent in the information technology sector. This manuscript compares the stock performance of computer and cellular hardware companies across six different twenty-month periods between the years 1996-2006. The focus periods include the browser era, the Y2K...

A substantial number of studies have extended the work on universal properties in physical systems to complex networks in social, biological, and technological systems. In this paper, we present a complex networks perspective on interfirm organizational networks by mapping, analyzing and...

An important question about social norms is whether they are created to increase welfare; I address it by examining the characteristics of tipped and non-tipped occupations. Tipping prevalence is negatively correlated with worker's income and consumer's monitoring ability and positively with...

We assess substitutable and complementary relationships among eight national advertising media classes, as well as the magnitude of their own-price elasticities. We use a translog demand model, whose parameters we estimate by three-stage least squares, based on 1960-94 annual U.S. data.We find...

During the first years of their existence both the research data centre of the Federal Statistical Office and the statistical offices of the Länder have managed to implement a data infrastructure in Germany, which allows a wide range of scientific analyses of microdata in all fields of official...