Excess Volatility in European Equity Style Indices - New Evidence
Marian Berneburg
IWH Discussion Papers,
Nr. 16,
2006
Abstract
Are financial markets efficient? One proposition that seems to contradict this is Shiller’s finding of excess volatility in asset prices and its resulting rejection of the discounted cash flow model. This paper replicates Shiller’s approach for a different data set and extends his analysis by testing for a long-run relationship by means of a cointegration analysis. Contrary to previous studies, monthly data for an integrated European stock market is being used, with special attention to equity style investment strategies. On the basis of this analysis’ results, Shiller’s findings seem questionable. While a long-run relationship between prices and dividends can be observed for all equity styles, a certain degree, but to a much smaller extent than in Shiller’s approach, of excess volatility cannot be rejected. But it seems that a further relaxation of Shiller’s assumptions would completely eliminate the finding of an overly strong reaction of prices to changes in dividends. Two interesting side results are, that all three investment styles seem to have equal performance when adjusting for risk, which by itself is an indication for efficiency and that market participants seem to use current dividend payments from one company as an indication for future dividend payments by other firms. Overall the results of this paper lead to the conclusion that efficiency cannot be rejected for an integrated European equity market.
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Progress reports from the project "Productivity Gap"
Johannes Stephan
Einzelveröffentlichungen,
Nr. 3,
2004
Abstract
The project assesses the roles played by determinants of productivity gaps between Accession Countries in Central East Europe and the more advanced countries in Western Europe. The focus is on the respective weights of determinants and their influence on the potentials for future productivity catch-up.
The convenient feature about assessing productivity levels is that they inform us about the narrowing or divergence of income gaps, provide an indication of international competitiveness, and the sustainability of growth paths (technological development).
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EU Accession Countries’ Specialisation Patterns in Foreign Trade and Domestic Production - What can we infer for catch-up prospects?
Johannes Stephan
IWH Discussion Papers,
Nr. 184,
2003
Abstract
This paper supplements prior analysis on ‘patterns and prospects’ (Stephan, 2003) in which prospects for the speed of future productivity growth were assessed by looking at the specialisation patterns in domestic production. This analysis adds the foreign trade sphere to the results generated in the prior analysis. The refined results are broadly in line with the results from the original analysis, indicating the robustness of our methods applied in either analysis. The most prominent results pertain to Slovenia and the Slovak Republic. Those two countries appear to be best suited for swift productivity catch-up from the viewpoint of sectoral specialisation. Poland and Estonia exhibit the lowest potentials. Only for the case of Poland would results suggest bleak prospects.
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Evolving Structural Patterns in the Enlarging European Division of Labour: Sectoral and Branch Specialisation and the Potentials for Closing the Productivity Gap
Johannes Stephan
IWH-Sonderhefte,
Nr. 5,
2003
Abstract
This report summarises the results generated in empirical analysis within a larger EU 5th FP RTD-project on the determinants of productivity gaps between the current EU-15 and accession states in Central East Europe. The focus of research in this part of the project is on sectoral specialisation patterns emerging as a result of intensifying integration between the current EU and a selection of six newly acceding economies, namely Estonia, Poland, the Czech and Slovak Republics, Hungary and Slovenia. The research-leading question is concerned with the role played by the respective specialisation patterns for (i) the explanation of observed productivity gaps and for (ii) the projection of future potentials of productivity growth in Central East Europe.
For the aggregated level, analysis determines the share of national productivity gaps accountable to acceding countries’ particular sectoral patterns, and their role for aggregate productivity growth: in Poland, the Slovak Republic and Hungary, sectoral shares of national productivity gaps are considerable and might evolve into a ‘barrier’ to productivity catch-up.Moreover, past productivity growth was dominated by a downward adjustment in employment rather than structural change. With the industrial sector of manufacturing having been identified as the main source of national productivity gaps and growth, the subsequent analysis focuses on the role of industrial specialisation patterns and develops an empirical model to project future productivity growth potentials. Each chapter closes with some policy conclusions.
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A Study of the Competitiveness of Regions based on a Cluster Analysis: The Example of East Germany
Franz Kronthaler
IWH Discussion Papers,
Nr. 179,
2003
Abstract
This paper examines whether some East German regions have already achieved the same economic capability as the regions in West Germany, so that they are on a competitive basis with the West German regions and are able to reach the same economic level in the long run. If this is not the case, it is important to know more about the reasons for the economic weakness of the East German regions twelve years after unification.
The study is based on a cluster analysis. Criteria for the cluster formation are several economic indicators, which provide information about the economic capability of regions. The choice of the indicators is based on a review of results of the theoretical and empirical literature on the new growth theory and new economic geography.
The results show that most of the East German regions have not yet reached the economic capability and competitiveness of their West German counterparts so that they - from the viewpoint of the new growth theory and the new economic geography - are not in the position to reach the same economic level. According to these theories economic disadvantages are most notably the consequences of less technical progress, a lack of entrepreneurship and fewer business concentration. Under these points it is especially noteworthy that young well educated people leave these East German regions so that human capital might will turn into a bottle-neck in the near future. Only a few regions in East Germany - those with important agglomerations - are comparable to West German regions that are characterised by average capability and competitiveness, but not to those with above average economic capability and competitiveness. Even those more advanced East German regions still suffer from a slower technical progress.
There are important policy implications based on these results: regional policy in East Germany was not able to assist raising all regions to a sufficient level of competitiveness. It may be more effective to concentrate the regional policy efforts on a selection of important agglomerations. This has also strong implications for the EU regional policy assuming that the accession countries will have similar problems in catching up to the economic level of the EU as have the East German regions.
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Korean Unification and Banking System - An Analysis in View of German Experiences and Korean Differences
Ralf Müller
IWH Discussion Papers,
Nr. 139,
2001
Abstract
One of the reforms that have to be launched in a future unification process in Korea, which seems possible after the political negotiations last year, is the transformation of the North Korean banking system. The question arises whether Korea could profit from the German experience where banking transformation was one of the rather few success stories in unification. In 1990 the East German banking transformation was achieved relatively fast and uncomplicated due to considerable direct investments of the West German banks compounded with state guarantees for bad loans resulting from the credit business with existing GDR-corporations. Unfortunately, South Korea currently lacks some major prerequesites that contributed to the German banking unification, among them – and probably the most important one – is the lack of a sound and efficient banking
system that could become active in the North. Consequently, depending on the circumstances of a future Korean unification either a more gradual process is recommended or, if inner-Korean migration requires a more dynamic transition, considerable investment by foreign banks and assistance from international organisations is recommended.
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