A revised theory of contestable markets : applied on the German telecommunication sector
Christian Growitsch, Thomas Wein
Externe Publikationen,
Nr. 275,
2002
Abstract
Despite the scepticism raised by the German Monopoly Commission our analysis shows that the revised theory of contestable markets can be applied to the telecommunications market better than expected. The original contestable market theory implied three assumptions necessary to be satisfied to establish potential competition: Free market entry, market exit is possible without any costs, and the price adjustment lag exceeds the entry lag. Our analysis shows that if the incumbent reduces its prices slowly (high adjustment lag) and the market entry can be performed quickly (low entry lag), a new competitor will be able to earn back sunk costs. Therefore it is not necessary that all three conditions are satisfied for potential competition to exist. We applied the ‘revised’ contestable market theory to the German telecommunication market and have been able to clearly identify the value added stages in which regulation is required. Under the present conditions local loops - which can be determined as natural monopolies - are not contestable due to sunk costs, high entry lags expected and a probable short price adjustment lag. Local loops can be identified as monopolistic bottlenecks therefore. Regional and local connection networks should also be regulated because a high entry lag and a low price adjustment lag have to be expected as well as current competition does not exist today. The national connection network shows current competition between several network providers; hence regulation can be abolished in this field. Assumed that network access is regulated, services can be supplied by several competing firms.
Artikel Lesen
Bank-Firm Relationships and International Banking Markets
Hans Degryse, Steven Ongena
International Journal of the Economics of Business,
Nr. 3,
2002
Abstract
This paper reviews how long-term relationships between firms and banks shape the structure and integration of banking markets worldwide. Bank relationships arise to span informational asymmetries that are endemic in financial markets. Firm-bank relationships not only entail specific benefits and costs for both the engaged firms and banks, but also directly affect the structure of banking markets. In particular, the sunk cost of screening and monitoring activities and the 'informational capital' collected by the incumbent banks may act as a barrier to entry. The intensity of the existing firm-bank relationships will determine the height of this barrier and shape the structure of international banking markets. For example, in Scandinavia where firms maintain few and strong relationships, foreign banks may only be able to enter successfully through mergers and acquisitions. On the other hand, Southern European firms maintain many bank relationships. Therefore, banks may consider entering Southern European banking markets through direct investment.
Artikel Lesen
Macroeconomic Modelling of the German Economy in the Framework of Euroland
Rüdiger Pohl, Heinz P. Galler
Schriften des IWH,
Nr. 11,
2002
Abstract
An attempt to develop a new macroeconometric model for Germany is confronted with several questions that range from the general rationality of such an approach to specific problems of an appropriate model structure. One important aspect of this discussion is the introduction of the Euro as a common currency of the European monetary union. This institutional change may result in structural breaks due to changing behavior of economic agents. In addition, the definition of the spatial unit that is appropriate for modelling becomes a problem. Additional problems come from the introduction of the European Single Market and the increasing international economic integration not only within the European union but also beyond its borders. And in the case of Germany, the unification of the West and the East demand special attention. Last but not least, the harmonization of national accounting for the member states of the European Union has to be dealt with. Thus, the introduction of the Euro as a common currency is just one problem besides others that must be addressed.
Artikel Lesen
Are the Central and Eastern European Transition Countries still vulnerable to an Financial Crisis? Results from the Signals Approach
Axel Brüggemann, Thomas Linne
IWH Discussion Papers,
Nr. 157,
2002
Abstract
The aim of the paper is to analyse the vulnerability of the Central and Eastern European accession countries to the EU as well as that of Turkey and Russia to a financial crisis. Our methodology is an extension of the signals approach. We develop a composite indicator to measure the evolution of the risk potential in each country. Our findings show that crises in Central and Eastern Europe are caused by much the usual suspects as in others emerging markets. In particular an overvalued exchange rate, weak exports and dwindling currency reserves have good predictive power for assessing crisis vulnerabilities.
Artikel Lesen
Bank Concentration and Retail Interest Rates
S. Corvoisier, Reint E. Gropp
Journal of Banking and Finance,
Nr. 11,
2002
Abstract
The recent wave of mergers in the euro area raises the question whether the increase in concentration has offset the increase in competition in European banking through deregulation. We test this question by estimating a simple Cournot model of bank pricing. We construct country and product specific measures of bank concentration and find that for loans and demand deposits increasing concentration may have resulted in less competitive pricing by banks, whereas for savings and time deposits, the model is rejected, suggesting increases in contestability and/or efficiency in these markets. Finally, the paper discusses some implications for tests of the effect of concentration on monetary policy transmission.
Artikel Lesen
Analysing UDROP: An instrument for stabilizing the international financial architecture
Axel Lindner
International Finance,
Nr. 1,
2001
Abstract
This paper analyses implications of a proposal, called UDROP, to reform the standards of international debt contracts. The idea is to give borrowers a roll-over option at maturity for a specified length of time. Using recently developed models of financial crises, the paper shows for which type of crisis UDROP is beneficial. Moral hazard of the borrower is one of the problems UDROP faces which can be addressed by appropriately designing the debt contract.
Artikel Lesen
Rating Agency Actions and the Pricing of Debt and Equity of European Banks: What Can we Infer About Private Sector Monitoring of Bank Soundness?
Reint E. Gropp, A. J. Richards
Economic Notes,
Nr. 3,
2001
Abstract
The recent consultative papers by the Basel Committee on Banking Supervision has raised the possibility of an explicit role for external rating agencies in the assessment of the credit risk of banks’ assets, including interbank claims. Any judgement on the merits of this proposal calls for an assessment of the information contained in credit ratings and its relationship to other publicly available information on the financial health of banks and borrowers. We assess this issue via an event study of rating change announcements by leading international rating agencies, focusing on rating changes for European banks for which data on bond and equity prices are available. We find little evidence of announcement effects on bond prices, which may reflect the lack of liquidity in bond markets in Europe during much of our sample period. For equity prices, we find strong effects of ratings changes, although some of our results may suffer from contamination by contemporaneous news events. We also test for pre-announcement and post-announcement effects, but find little evidence of either. Overall, our results suggest that ratings agencies may perform a useful role in summarizing and obtaining non-public information on banks and that monitoring of banks’ risk through bond holders appears to be relatively limited in Europe. The relatively weak monitoring by bondholders casts some doubt on the effectiveness of a subordinated debt requirement as a supervisory tool in the European context, at least until bond markets are more developed.
Artikel Lesen
Transition from Planned to Market Economies Ten Years on
Jens Hölscher, Johannes Stephan
Journal for East European Management Studies (JEEMS),
Nr. 1,
2000
Abstract
Artikel Lesen
Pension Reform in Hungaryie
Peter Gedeon
IWH-Sonderhefte,
Nr. 5,
2000
Abstract
In Hungary social policy reforms in general and the pension reform in particular followed the introduction of the institutions of market economy with a considerable time lag, if at all. Although it was clear from the outset that the communist welfare state could not be sustained, comprehensive institutional reforms in the pension or health care systems were not introduced in the first six years of the postsocialist transition. This uneasiness to reform the social security systems has to do with the contradicting constraints decision makers have to face in the process of systemic change.
Artikel Lesen
Financial crisis and problems yet to solve - conference proceedings
IWH-Sonderhefte,
Nr. 6,
2000
Abstract
Since the beginning of 1997, a currency and/or banking crisis broke out in several transition countries (Bulgaria, Romania, the Czech Republic, Russia, Ukraine). In 1995, Hungary avoided a financial crisis by adjusting properly her macroeconomic policies. Financial markets in transition countries are still small. They gain, however, more and more importance for the entire economy. Part of the countries mentioned are candidates for EU membership. They have to show their ability to stabilize their exchange rates and financial sectors. The fact that overcoming the financial crisis in Asia and Latin America required international assistance (e.g. IMF) underlines the political importance of strategies of preventing such crises in the EU's immediate neighborhood.
Artikel Lesen
