Using panel data for nearly all service providers in a single industry sector, we examine productivity responses to changes in competition in the United States. The sector offers workplace employee representation through trade union branches which compete with one another for union members whose...

Der Beitrag untersucht den physischen und digitalen Zugang zu Finanzdienstleistungen der öffentlich-rechtlichen Sparkassen in Deutschland, um zu beurteilen, ob die durch den Filialrückbau bewirkte reduzierte Präsenz in der Fläche durch digitale Angebote kompensiert werden kann. Die physische...

This paper seeks to understand the extent financialisation has had an impact on the rental housing market in Berlin. Specifically, it focuses on the financialisation of non-financial rental housing companies. The financial statements of five large, publicly listed, commercial rental housing...

This paper studies an intermediated market operated by middlemen with high inventory holdings. I present a directed search model in which middlemen are less likely to experience a stockout because they have the advantage of inventory capacity, relative to other sellers. The model explains why...

This paper develops a model in which market structure is determined endogenously by the choice of intermediation mode. We consider two representative business modes of intermediation that are widely used in real-life markets: one is a middleman mode where an intermediary holds inventories which...

In this paper, we empirically study how flagship entry in an online marketplace affects consumers, the platform, and various sellers on the platform. We find flagship entry may benefit consumers by expanding the choice set, by intensifying price competition within the entry brand, and by...

In this paper we investigate the size of markups for nationally branded products sold in the U.S. retail grocery industry. Using scanner data from a large Midwestern supermarket chain, we compute several measures of upper and lower bounds on markup ratios for over 230 nationally branded products...

The first of both short essays deals with two structural constraints that distinguish services markets from e.g. markets for manufacturing products. The 'nearness restriction' requires that producer and consumer of the service product are present on the same location. The 'non-storability...

This paper surveys a variety of topics related to network economics. Topics covered include: consumer demand under network effects, compatibility decisions and standardization, technology advances in network industries, two-sided markets, information networks and intellectual property, and...

This paper develops a model in which market structure is determined endogenously by the choice of intermediation mode. We consider two representative business modes of intermediation that are widely used in real-life markets: one is a middleman mode by which an intermediary holds inventories...