Thema Märkte

Endogenous Shifts in OPEC Market Power: A Stackelberg Oligopoly with Fringe

This article proposes a two-stage oligopoly model for the crude oil market. In a game of several Stackelberg leaders, market power increases endogenously as the spare capacity of the competitive fringe goes down. This effect is due to the specific cost function characteristics of extractive industries. The model captures the increase of OPEC market power before the financial crisis and its drastic ...

Is There a Bubble in the Chinese Housing Market?

For many analysts, the Chinese economy is being spurred on by a bubble in the housing market, probably driven by the fiscal stimulus package and massive credit expansion, with potentially adverse effects on the real economy. The house price development is investigated by panel cointegration techniques. Evidence is based on a data-set for 35 major cities. Cointegration is detected between real house ...

Real Estate Booms and Price Bubbles: What Can Germany Learn from Other Countries?

When speculative price bubbles on real estate markets burst, the effects for the real economy are often devastating taking the form of substantial losses in production and employment. This paper discusses the degree to which institutional frameworks can prevent speculative bubbles from emerging and expanding. Comparing experiences in different countries indicates that, in Germany, institutional regulations ...

Combining Energy Networks: The Impact of Europe's Natural Gas Network on Electricity Markets until 2050

The interdependence of electricity and natural gas is becoming a major energy policy and regulatory issue in all jurisdictions around the world. The increased role of gas fired plants in renewable-based electricity markets and the dependence on gas imports make this issue particular striking for the European energy market. In this paper we provide a comprehensive combined analysis of electricity and ...

Does State Antitrust Enforcement Drive Establishment Exit?

Previous work has shown that state-level antitrust enforcement activity may have impacts on entry and relocation behavior by U.S. firms. Significant state-level antitrust activity may be an indicator of a perceived adverse business environment and it is found to deter establishment entry, particularly for larger firms in the retail and wholesale sectors. An obvious question is whether establishment ...

Merger Externalities in Oligopolistic Markets

We quantify externalities on profitability and market shares of competing firms in oligopolistic markets through the transition from an n to an n - 1 player oligopoly after a merger. Competitors are identified via the European Commission's market investigations and our methodology allows us to distinguish the externality due to the change in market structure from the merger effect. We obtain results ...

Targeted Pricing and Customer Data Sharing among Rivals

It is increasingly observable that competitors in different industries share customer data, which can be used for targeted pricing. We propose a modified Hotelling model with two-dimensional consumer heterogeneity to analyze the incentives for such sharing and its ensuing welfare effects. We show that these incentives depend on the type of customer data and on consumer heterogeneity in the strength ...

Internet-Based Hedonic Indices of Rents and Prices for Flats: Example of Berlin

In this paper, we suggest to estimate the home rents and prices in German regions/cities using the data from Internet ads offering the housing for rent and sale. Given the richness of information contained in the ads, we are able to construct the quality-adjusted rent and price indices using the hedonic approach. The results can be applied both for investigating the dynamics of rents/prices and for ...

Evidence of Market Power in the Atlantic Steam Coal Market Using Oligopoly Models with a Competitive Fringe

Before 2004 South Africa was the dominant steam coal exporter to the European market. However a new market situation with rising global demand and prices makes room for a new entrant: Russia. The hypothesis investigated in this paper is that the three incumbent dominant firms located in South Africa and Colombia reacted to that new situation by exerting market power and withheld quantities from the ...

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