Der vorliegende Beitrag betrachtet die wettbewerbs- und medienökonomischen Eigenschaften und Effekte von algorithmischen Such- und Empfehlungssystemen und ihrer Regulierung. Dabei werden nach einer einführenden Klarstellung des Sinns und der Notwendigkeit solcher Systeme in der digitalen Welt...

How important is Google for scientific research? This paper exploits the exogenous shock represented by Google's sudden withdrawal of its services from mainland China to assess the importance of access to information for the knowledge production function of scientific scholars in the field of...

Ranking algorithms are the information gatekeepers of the Internet era. We develop a stylized framework to study the effects of ranking algorithms on opinion dynamics. We consider rankings that depend on popularity and on personalization. We find that popularity driven rankings can enhance...

This paper analyses the equilibrium effects of individual information filters. Information is modelled as advertisements which are distributed across a population of consumers with heterogeneous preferences. An advertisement that provides knowledge about a product with little or no utility for a...

Advertisements provide consumers with knowledge about private products, whereas political information is required to provide voters with knowledge of public issues. Modern information technologies and globalisation are increasing the exposure of individuals to information. Goods advertising is...

We analyze the economic effects of a developer’s connectedness in the electronic gameindustry. Knowledge spillovers between developers should be of special relevance in this knowledgebasedindustry. We calculate measures for a developer’s connectedness to other developers atmultiple points in...

International trade is subject to information incompleteness. Firms must therefore engage in a costly search process to find business partners. Online platforms can reduce these search costs and thereby favor firms exports. We examine whether this is actually the case and the underlying...

Advertisements provide consumers with knowledge about private products, whereas political information is required to provide voters with knowledge of public issues. Modern information technologies and globalization are increasing the exposure of individuals to information. Goods advertising is...

Advertisements provide consumers with knowledge about private products, whereas political information is required to provide voters with knowledge of public issues. Modern information technologies and globalisation are increasing the exposure of individuals to information. Goods advertising is...

This paper analyses the equilibrium effects of individual information filters. Information is modelled as advertisements which are distributed across a population of consumers with heterogeneous preferences. An advertisement that provides knowledge about a product with little or no utility for a...