In this paper we investigate the existence of a two-tier medical system in the German acute care hospital sector using data from a survey of 483 German hospitals. The focus of our analysis lies on the impact of hospital concentration on the probability of discrimination of patients with...

The Herfindahl-Hirschman index (HHI) appears to be the most widely used index of market or industrial concentration. It is a summary measure that indicates the degree of competition, market power, and efficiency within a market or an industry. The HHI is also used by government agencies when...

In this paper we investigate the existence of a two-tier medical system in the German acute care hospital sector using data from a survey of 483 German hospitals. The focus of our analysis lies on the impact of hospital concentration on the probability of discrimination of patients with...

Measures of Concentration are of vital importance for welfare related public policy toward market structure and conduct in the banking industry. The most widely used measure of market concentration, the concentration ratio. While useful as a starting point, the concentration ratio has important...

Worldwide, the overwhelming majority of large horizontal mergers are cleared by antitrust authorities unconditionally. The presumption seems to be that efficiencies from these mergers are sizeable. We calculate the compensating efficiencies that would prevent a merger from harming consumers for...

Worldwide, the overwhelming majority of large horizontal mergers are cleared by antitrust authorities unconditionally. The presumption seems to be that efficiencies from these mergers are sizeable. We calculate the compensating efficiencies that would prevent a merger from harming consumers for...

The Herfindahl-Hirschman index (HHI) appears to be the most widely used index of market or industrial concentration. It is a summary measure that indicates the degree of competition, market power, and efficiency within a market or an industry. The HHI is also used by government agencies when...

This paper analyzes market concentration on the market of insurance companies in Croatia. For a very long time, Croatian insurance market was dominated by one company.After the liberalization, the number of insurance companies on the market began to increase, which led to a significant fall in...

By lowering search costs, making more products available, and providing access to free content, information technology (IT) has changed patterns of market concentration in media industries such as recorded music. In this paper, I argue that to understand how IT has changed media markets we need...