Market Concentration and Product Variety under Spatial Competition: Evidence from Retail Gasoline

We show that for a spatially differentiated economy reduced product variety is the likely outcome of mergers except in cases where exit costs in relation to (outlet-specific) fixed costs are high. Our empirical analysis of the Austrian retail gasoline market confirms that increases in concentration reduce product variety. Ignoring this product variety effect is likely to lead to an underestimate of market power in structural merger analysis.spatial product differentiation, retail gasoline, mergers, concentration

Locational choice and price competition: Some empirical results for the Austrian retail gasoline market

Using data from the Austrian retail gasoline market we test the following two hypotheses derived from spatial economics: (i) Retail shops are more densely located in areas with a higher population density. (ii) Spatial competition equilibrium prices are decreasing in the density of seller locations. Both hypotheses are well supported by the data. Population density explains more than 95% of the cross-district variation in the density of gasoline stations. With respect to the relationship between prices and gas station density the coefficient has the predicted sign and is significant at the 5% level or better in all specifications. Estimation as simultaneous equations does not alter our conclusions, and suggests causality running from station density to price.

Market Power versus Efficiency Effects of Mergers and Research Joint Ventures: Evidence from the Semiconductor Industry

Merger control authorities may approve a merger based on a so-called 'efficiency defence'. An important aspect in clearing mergers is that the efficiencies need to be merger-specific. Joint ventures, and in particular research joint ventures (RJVs), may achieve comparable efficiencies possibly without the anti-competitive (market power) effects of mergers. We present evidence for the semiconductor industry that RJVs indeed represent viable alternatives to mergers. We empirically account for the endogenous formation of mergers and RJVs.

The Trade-off Between Static and Dynamic Efficiency in Electricity Markets - A Cross Country Study

This paper is the first to explicitly test for the presence of a trade-off between static and dynamic efficiency in a regulated industry, the electricity industry. We show for 16 European countries over the period 1998-2007 that higher electricity end-user prices in a country subsequently lead to higher investments in the capital stock, i.e. in generation, distribution and transmission assets. Moreover, there is a trade-off between vertical economies and competition. Ownership unbundling and forced access to the incumbent transmission grid increase competition but come at the cost of lost vertical economies. Generally, we find that regulation that affect only the market like the establishment of a wholesale market or free choice of suppliers increase investment activity via spurring competition. Regulation, however, that adversely affects the incumbent directly, like ownership unbundling, decreases aggregate investment spending. (author's abstract)Series: Working Papers / Research Institute for Regulatory Economic

How Effective is European Merger Control?

This paper applies a novel methodology to a unique dataset of large concentrations during the period 1990-2002 to assess merger control’s effectiveness. By using data gathered from several sources and employing different evaluation techniques, we analyze the economic effects of the European Commission’s (EC) merger control decisions and distinguish between blockings, clearances with commitments (either behavioral or structural), and outright clearances. We run an event study on merging and rival firms’ stocks to quantify the profitability effects of mergers and merger control decisions. We back up our results and methodology by using alternative measures for the merger’s profitability effects based on balance sheet data and obtain consistent results. Our findings suggest that outright blockings solve the competitive problems generated by the merger. Remedies are not always effective in solving the market power concerns, at least not on average. Nevertheless, both structural (divestitures) and behavioral remedies do help restore effective competition when correctly applied to anticompetitive mergers during the first investigation phase. Yet, they are on the whole ineffective or even detrimental when applied after the second investigation phase. Finally, remedies - especially behavioral ones - seem to constitute a rent transfer from merging firms to rivals when mistakenly applied to pro-competitive mergers

The Determinants of the German Corporate Governance Rating

This paper analyzes the determinants of the German corporate governance rating recently developed by Drobetz, Schillhofer, and Zimmermann (2004). We find a non- linear relationship between ownership concentration and the quality of firmlevel corporate governance as measured by the rating. Firms with larger boards of directors have lower governance ratings, but firms that apply US-GAAP or IAS rules and/or use an option-based remuneration plan have higher corporate governance ratings. Our results question the comply-or-explain principle embedded in recent corporate governance codes and call for a more rules-based approach in improving corporate governance in Europe.Corporate governance, endogeneity, ownership structure, board size, accounting principles, executive compensation.

An Empirical Assessment of the 2004 EU Merger Policy Reform

Based on a database of 326 merger cases scrutinized by the European Commission between 1990 and 2007, we evaluate the economic impact of the change in Euro-pean merger legislation in 2004. We first propose a general framework to assess merger policy effectiveness, which is based on standard oligopoly theory and makes use of stock market reactions as an external assessment of the merger and the merger control decisions. We then focus on four different dimensions of effec-tiveness: 1) legal certainty; 2) frequency and determinants of type I and type II er-rors; 3) rent-reversion achieved by different merger policy tools; and 4) deterrence of anti-competitive mergers. To infer the economic impact of the merger policy reform, we compare the results of our four tests before and after its introduction. Our results suggest that the policy reform seems to have been only a modest im-provement of European merger policy. ZUSAMMENFASSUNG - Eine empirische Bewertung der in 2004 eingeführten Reform der Europäischen Fusionskontrolle - Basierend auf einer Stichprobe von 326 Fusionsfällen, welche der Europäischen Kommission zwischen Januar 1990 und Dezember 2007 vorlagen, wird in diesem Beitrag die Wirkung der in Mai 2004 eingeführten neuen Regulierung für Firmenfusionen erforscht. Zuerst wird ein allgemeiner Ansatz vorgeschlagen, um die Effektivität der Fusionskontrolle zu evaluieren, welcher auf der Oligopoltheorie beruht und Fusionen und Fusionskontrollentscheidungen anhand der Reaktionen von Aktienmärkten bewertet. Vier unterschiedliche Aspekte der Effektivität der Fusionskontrolle werden dann untersucht: 1) die Rechtssicherheit, 2) die Häufigkeit und Determinanten von Entscheidungsfehlern erster und zweier Ordnung seitens der Kommission, 3) die effektive Reduzierung der wettbewerbswidrigen Wirkungen von Fusionen, erzielt von unterschiedlichen wettbewerbspolitischen Instrumenten und 4) die Abschreckung von wettbewerbsschädigenden Fusionen. Um die Wirking der neuen Regulierung abzuschätzen, werden die Resultate der vier Tests vor und nach der Einführung der Reform verglichen. Die Ergebnisse zeigen, dass die Reform nur zu einer mäßigen Verbesserung der Europäischen Fusionskontrolle geführt hat.merger control, regulatory reform, EU Commission, event-study

EU Merger Remedies: A Preliminary Empirical Assessment

Mergers that substantially lessen competition are challenged by antitrust authorities. Instead of blocking anticompetitive transitions straight away, authorities might choose to negotiate with the merging parties and allow the transactions to proceed with modifications that restore or preserve the competition in the involved markets. We study a sample of 167 mergers that were under the European Commission’s scrutiny from 1990 to 2002. We use an event study methodology to identify the potential anticompetitive effects of mergers as well as the remedial provisions on these transactions. Stock market reactions around the day of the merger’s announcement provide information on the first question, whereas the stock market reactions around the commission’s final decision day convey information about the outcome of the bargaining process between the authority and the merging parties. We first classify mergers according to their effects on competition and then we develop hypotheses on the effects that remedies are supposed to achieve depending on the merger’s competitive outcome. We isolate several stylized facts. First, we find that remedies were not always appropriately imposed. Second, the market seems to be able to predict remedies’ effectiveness when applied in phase I. Third, the market also seems able to produce a good prior to phase II’s clearances and prohibitions, but not to remedies. This can be due either to a measurement problem or related to the increased merging firms’ bargaining power during the second phase of the merger review

EU Merger Remedies: A Preliminary Empirical Assessment

Mergers that substantially lessen competition are challenged by antitrust authorities. Instead of blocking anticompetitive transitions straight away, authorities might choose to negotiate with the merging parties and allow the transactions to proceed with modifications that restore or preserve the competition in the involved markets. We study a sample of 167 mergers that were under the European Commission’s scrutiny from 1990 to 2002. We use an event study methodology to identify the potential anticompetitive effects of mergers as well as the remedial provisions on these transactions. Stock market reactions around the day of the merger’s announcement provide information on the first question, whereas the stock market reactions around the commission’s final decision day convey information about the outcome of the bargaining process between the authority and the merging parties. We first classify mergers according to their effects on competition and then we develop hypotheses on the effects that remedies are supposed to achieve depending on the merger’s competitive outcome. We isolate several stylized facts. First, we find that remedies were not always appropriately imposed. Second, the market seems to be able to predict remedies’ effectiveness when applied in phase I. Third, the market also seems able to produce a good prior to phase II’s clearances and prohibitions, but not to remedies. This can be due either to a measurement problem or related to the increased merging firms’ bargaining power during the second phase of the merger review. ZUSAMMENFASSUNG - (Auflagen im Fusionskontrollverfahren der EU: Eine erste empirische Bewertung) Fusionen, die den Wettbewerb auf einem Markt vermindern oder verhindern, werden von Antitrustbehörden angefochten. Anstatt wettbewerbswidrige Zusammenschlüsse direkt zu blockieren, können die Behörden beschließen, mit den Parteien zu verhandeln und die Fusion mit Auflagen zu genehmigen, durch die der Wettbewerb in den entsprechenden Märkten wieder hergestellt oder aufrechterhalten wird. Wir analysieren eine Stichprobe von 167 Fusionen, die von der Europäischen Kommission zwischen 1990 und 2002 überprüft worden sind. Wir verwenden eine "event study" - Methodologie, um sowohl die möglichen wettbewerbswidrigen Wirkungen von Fusionen als auch die Wirkung der von der Behörde beschlossenen Auflagen zu untersuchen. Die Reaktion der Aktienpreise der beteiligten Unternehmen - sowohl der fusionierenden als auch der Wettbewerber - um den Tag der Fusionsankündigung liefert Informationen für die erste Frage, während die Reaktionen von Aktienpreisen um den Tag der EU-Kommissionsentscheidung Informationen über das Ergebnis der geheimen Verhandlungen zwischen der Behörde und den involvierten Parteien geben. Zuerst klassifizieren wir Fusionen entsprechend ihrer Effekte auf den Wettbewerb und dann entwickeln wir Hypothesen auf die Wirkung, welche die Auflagen in Abhängigkeit von den Wettbewerbseffekten der Fusion erzielen soll. Unsere Analyse ergibt einige stilisierte Fakten. Zuerst finden wir, dass die Auflagen von der EU-Kommission nicht immer adäquat angewandt wurden. Auflagen scheinen jedoch eine Wirkung auf die fusionierenden Unternehmen zu haben. Sie sind besonders effektiv, wenn sie bereits in Phase I des Fusionskontrollverfahrens eingesetzt werden. Jedoch scheint der Markt unfähig zu sein, eine gute Vorhersage für die Wirkung von Auflagen in Phase II zu produzieren. Dieses Ergebnis kann entweder auf einem Meßproblem beruhen oder es wird durch eine erhöhte Verhandlungsstärke der fusionierenden Unternehmen während der zweiten Phase der Fusionskontrolle verursacht.Merger Control, Remedies, European Commission, Event Studies.

Is the Event Study Methodology Useful for Merger Analysis? A Comparison of Stock Market and Accounting Data

Using a sample of 167 mergers during the period 1990-2002 involving 544 firms either as merging firms or competitors, we contrast a measure of the merger’s profitability based on event studies with one based on accounting data. We find positive and significant correlations between them when using a long window around the announcement date and, for rivals, in case of anticompetitive mergers