Monopolistic Competition and Costs in the Health Care Sector
Ingmar Kumpmann
IWH Discussion Papers,
No. 17,
2009
Abstract
Competition among health insurers is widely considered to be a means of enhancing efficiency and containing costs in the health care system. In this paper, it is argued that this could be unsuccessful since health care providers hold a strong position on the market for health care services. Physicians exert a type of monopolistic power which can be described by Chamberlin’s model of monopolistic competition. If many health insurers compete with one another, they cannot counterbalance the strong bargaining position of the physicians. Thus, health care expenditure is higher, financing either extra profits for physicians or a higher number of them. In addition, health insurers do not have an incentive to contract selectively with health care providers as long as there are no price differences between physicians. A monopolistic health insurer is able to counterbalance the strong position of physicians and to achieve lower costs.
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The ADR Shadow Exchange Rate as an Early Warning Indicator for Currency Crises
Stefan Eichler, Alexander Karmann, Dominik Maltritz
Journal of Banking and Finance,
No. 11,
2009
Abstract
We develop an indicator for currency crisis risk using price spreads between American Depositary Receipts (ADRs) and their underlyings. This risk measure represents the mean exchange rate ADR investors expect after a potential currency crisis or realignment. It makes crisis prediction possible on a daily basis as depreciation expectations are reflected in ADR market prices. Using daily data, we analyze the impact of several risk drivers related to standard currency crisis theories and find that ADR investors perceive higher currency crisis risk when export commodity prices fall, trading partners’ currencies depreciate, sovereign yield spreads increase, or interest rate spreads widen.
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Cartel Identification in Spatial Markets: An Analysis of the East German Cement Market
Ulrich Blum
Jahrbuch für Regionalwissenschaft,
2009
Abstract
In 2003, the German cement industry was fined more than six hundred million Euros for, allegedly, having fixed prices and quantities in the four regional German cement markets. When this case was finally resolved by the courts in 2009, the fine was reduced by a large amount as the German Antitrust Commission (GAC) was unable to provide sufficient evidence on the level excessive pricing by the cartelists.
This paper takes up again the case of the East German cement cartel that ended in early 2002 and shows that the quota agreement which was established in the mid 1990s was economically inactive. From the perspective of the individual players, the rationale of preserving the cartel can only be explained by limited knowledge of the true market forces. Based on a spatial approach for the years 1997 to 2002, the regional price-setting behavior and its changes can be analyzed against the situation. Econometric analysis suggests that competition was already rather strong in the cartel years as transport costs and rebate systems were used to fine-tune offers. Strategic imports from post-communist countries into the East German market as well as supply from medium-sized enterprises not included in the cartel exerted pressure on the markets.
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A Simple Macro Model of Original Sin based on Optimal Price Setting under Incomplete Information
Axel Lindner
International Economics and Economic Policy,
2009
Abstract
This paper analyses the consequences of “original sin“ (the fact that the currency of an emerging market economy usually cannot be used to borrow abroad) for macroeconomic stability. The approach is based on third-generation models of currency crises, but differs from alternative versions by explicitly modeling the price setting behavior of firms if prices are sticky and there is incomplete information about the future exchange rate. It is shown that a small depreciation is beneficial, but a large one is detrimental.
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Finanzielle Instabilität und Krise in den Post-Transformations-Ländern
Hubert Gabrisch
Wirtschaftspolitische Blätter,
No. 3,
2009
Abstract
Contagion was only the trigger of the unexpectedly severe crisis in European post-transition countries. Rather, increasing financial fragility of the countries since 2001, after their banking and financial sector was overtaken by international financial institutions, was the origin. Euphoric expectations induced an asset price inflation followed by an increasing debt burden of the private sector, which was fueled by net capital inflows. This study argues that simple concepts of demand reduction do not offer any way out of the crisis. A second transition is necessary, which establishes a new growth model being robust against speculative capital flows and offering high growth rates.
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Transmission of Nominal Exchange Rate Changes to Export Prices and Trade Flows and Implications for Exchange Rate Policy
Oliver Holtemöller, Mathias Hoffmann
Deutsche Bundesbank Discussion Paper 21/2009,
2009
Abstract
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Prediction Markets: Prognosemärkte in Praxis und Theorie - Ein Überblick
Marian Berneburg
External Publications,
2008
Abstract
A common joke among economist is: Why has god created meteorologists? To make the forecasts of economist look less bad! At the heart of this joke stands the critique that economic forecasts are notoriously inaccurate. Prediction Markets are an attempt to improve these forecasts by aggregating the knowledge of many. The present article takes a closer look at these Prediction Markets. By analysing the existing literature in terms of the relevant theoretical as well as empirical basis, it is shown that an adapted version of the model by Kyle (1985) with noise and insider traders is able to explain the high degree of predictive accuracy, i. e. informational efficiency, of prediction markets. At the same time such a model is able to cope with the Grossman-Stiglitz Paradox (1976) or the No-Trade Theorem (Milgrom & Stokey, 1982), both are common theoretical arguments against informational efficiency. This allows the interpretation of market prices as event probabilities. Even though some empirical artefacts (e. g. the favorite-longshot bias) exist and more research, especially in terms of prediction markets covering economic events, is needed, the overall verdict on these forecasting tools has to be that they are roughly semi-strong efficient. They hence provide an interesting, very accurate and additional tool in forecasting.
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Russia: A Victim to Transition or to the Financial Crisis?
Marina Grusevaja
Wirtschaft im Wandel,
No. 8,
2009
Abstract
The global financial crisis has revealed deficiencies of the Russian economic system which are caused by the path of the transformation from central planning to the market economy, and not only attributable to the downfall of crude oil prices. While the worldwide liquidity crunch impaired the availability of loans to enterprises, the situation in Russia has deteriorated especially by the large exposure of the private sector to short-term foreign liabilities and by the one-sided orientation of the economy relying on the natural resources industry. Until the mid-2008, the foreign debt of the private banks and non-banks had increased strongly and had strengthened the dependence of the Russian economy on the developments on the international financial markets. The Ruble devaluation at the end of January 2009 aggravated the situation. The high short-term foreign debt of the private sector and the dependence on exports of natural resources are typical outcomes of the Russian transformation path. Therefore, on the one hand, the banking sector has not being able to satisfy financing demand of the private sector beyond the natural resources industries, enterprises became forced to borrow short-term money abroad. On the other hand, the economic strategy of the past seventeen years has strengthened the influence of the state on the natural resources sector – with the strong priority to develop it further. Hence, the one-sided economic development negatively affects the adaptability of the real-economic sector to change during the crisis period. In essence, the present political preferences of the government are aimed at providing direct financial assistance and at protectionist measures. In the long run, these actions could lead to stronger intervention of the state in the economy. Due to these recent developments, the crisis is likely to continue in Russia longer than in the other transformation countries.
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Global Financial Crisis Seriously Hits Russian Economy Because of Structural Imbalances
Martina Kämpfe
Wirtschaft im Wandel,
No. 6,
2009
Abstract
Due to the falling global demand for commodities and the heavy decline of world oil prices in last summer, Russian economy was affected seriously. The following decrease in export revenues and a wave of short-term capital withdrawals led to a crash of Russian stock and capital markets and a deterioration of the economic situation at the end of the previous year. The government decided to stabilize the exchange rate of the Rouble by interventions and to support the domestic banking sector in order to maintain credit availability. In respect of the approaching recession, the parliament approved an economic stimulus package that would help to stabilize the economy and to avoid too strong social burdens for the households. Nevertheless, there is a strong weakening of economic growth because of the economy’s dependency from oil prices and the lack of alternatives up to now.
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Currency Appreciation and Exports: Empirical Evidence for Germany
Götz Zeddies
Wirtschaft im Wandel,
No. 6,
2009
Abstract
In the first decade after its introduction, the Euro didn’t just hold up well, but compared to important currencies even appreciated considerably. Of course, exchange rate risks were noticeably lowered by introducing the single currency, since the bulk of EMU Member States’ exports are conducted within the currency union. Nevertheless, a strong Euro is unfavourable especially for open economies like Germany.
The article investigates the effects of exchange rate movements on German exports over time. The analyses reveal a downward impact of nominal effective exchange rates, not only for total, but also for exports to countries outside the currency union. Although an increasing pass-through of exchange rate changes to export prices is apparently at hand, further reasons for the dwindling effect of nominal exchange rates on exports are likely to exist.
In this context, it is shown that exports are less sensitive not only with respect to nominal, but also with respect to real effective exchange rate changes, suggesting a declining price elasticity of demand. Instead, exports are increasingly determined by economic activity in trading partner countries. In consequence of its geographic proximity, Germany did particularly benefit from the economic upswing in Eastern Europe, overlaying the appreciation of the Euro. Additionally, the latter could hardly impair German export industries due to their specialization on capital and high-quality consumer goods less vulnerable to exchange rate fluctuations.
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