Systematic Mispricing in European Equity Prices?
Marian Berneburg
IWH Discussion Papers,
No. 6,
2007
Abstract
One empirical argument that has been around for some time and that clearly contra- dicts equity market efficiency is that market prices seem too volatile to be optimal estimates of the present value of future discounted cash flows. Based on this, it is deduced that systematic pricing errors occur in equity markets which hence can not be efficient in the Effcient Market Hypothesis sense. The paper tries to show that this so-called excess volatility is to a large extend the result of the underlying assumptions, which are being employed to estimate the present value of cash flows. Using monthly data for three investment style indices from an integrated European Equity market, all usual assumptions are dropped. This is achieved by employing the Gordon Growth Model and using an estimation process for the dividend growth rate that was suggested by Barsky and De Long. In extension to Barsky and De Long, the discount rate is not assumed at some arbitrary level, but it is estimated from the data. In this manner, the empirical results do not rely on the prerequisites of sta- tionary dividends, constant dividend growth rates as well as non-variable discount rates. It is shown that indeed volatility declines considerably, but is not eliminated. Furthermore, it can be seen that the resulting discount factors for the three in- vestment style indices can not be considered equal, which, on a risk-adjusted basis, indicates performance differences in the investment strategies and hence stands in contradiction to an efficient market. Finally, the estimated discount rates under- went a plausibility check, by comparing their general movement to a market based interest rate. Besides the most recent data, the estimated discount rates match the movements of market interest rates fairly well.
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Ageing in East Germany: Remarkable reduction of entrepreneurship
Lutz Schneider, Stefan Eichler
Wirtschaft im Wandel,
No. 4,
2007
Abstract
Population shrinking and ageing are obvious trends in many German regions, but in the Eastern states they reach an unique level. An often ignored economic implication of these demographic deve-lopments is the reduction of the entrepreneurial potential. Shirking, on the one hand, diminishes the quantity of potential entrepreneurs, on the other hand these effects are strengthened by ageing trends, since people usually decide in younger years to found an enterprise. The analysis tries to quantify the impact of demographic change on entrepreneurship activities in east Germany until 2020. At the first stage on the basis of the Mikrozensus survey age specific shares of new entrepreneurs are calculated. In order to obtain a status-quo-forecast of new entrepreneurs at the second stage these quotas are combined with the population projections for the East Germany. As expected the propensity to set up a new business is highest for persons at the age form 25 to 39 years. Due to the strong reduction of this age group the number of new firm foundations will fall by approximately 25% until 2020.Whereas the decline in Berlin will be relatively small (14%), Brandenburg has to bear an alarming reduction of 32%.In contrast the West German states show only a reduction of 6% during the same period, which emphasizes the extraordinary dimension of demographic change in East Germany.
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Alterung und technologisches Innovationspotential : Eine Linked-Employer-Employee-Analyse
Lutz Schneider
IWH Discussion Papers,
No. 2,
2007
Abstract
Growth in advanced economies is essentially driven by innovation activities. From a demographic point of view the question rises, whether the trend of an ageing workforce will affect the innovation capacities of these economies. To answer this question, the paper examines on the basis of a German linked-employer-employee-dataset, whether an older workforce lowers a firm’s potential to generate product innovations. The empirical approach is based on an Ordered-logit regression model, relating a firm’s innovation potential to the age composition of its employees. The analysis provides evidence of significant age effects. The estimated age-innovation-profile follows an inverted-ushaped pattern, it peaks at the age of about 40 years. A separate estimation shows, that the technician’s and engineer’s age seems to be particularly relevant.
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Zu alt für einen Wechsel? Zum Zusammenhang von Alter, Lohndifferentialen und betrieblicher Mobilität
Lutz Schneider
IWH Discussion Papers,
No. 1,
2007
Abstract
Due to the well known fact of a reduced mobility of older employees the workforce aging will have strong consequences for job mobility in Germany. On the basis of the IAB-Beschäftigtenstichprobe (IABS) the subsequent article analyzes the impact of age on (inter-firm) job mobility. In particular the study answers the question, how wage differentials of a potential job change evolve during the working life span. It is shown, that a job change is less profitable for old than for young workers. However the analysis also demonstrates, that the wage differentials of job changes cannot explain the whole mobility advantage of younger employees.
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Microeconometric Evaluation of Selected ESF-funded ALMP-Programmes
Eva Reinowski, Birgit Schultz
IWH Discussion Papers,
No. 17,
2006
Abstract
The study evaluates different ESF-funded labour market programmes by comparing the labour market status at different points in time after the treatment. In order to solve the selection problem we employ a standard matching algorithm with a multi-dimensional distance measure. The effects of the analyzed programmes (wage subsidies, start-up subsidies and qualification measures for recipients of social welfare) are very heterogeneous. It can be observed that the direct integration into the regular labour market provides an advantage for the supported individuals. Its lasting effects, however, strongly depend on the group of persons being supported, the type of treatment and the employers’ financial share.
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Excess Volatility in European Equity Style Indices - New Evidence
Marian Berneburg
IWH Discussion Papers,
No. 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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Options and Limits of the Matching Approach – An Application to Workers Participation
Birgit Schultz
IWH Discussion Papers,
No. 15,
2006
Abstract
The evaluation of economic effects of workers participation is not simple from the methodical point of view because of specific characteristics of establishments with works councils. Especially recent studies show contradictory results. In this study problems are pointed out, discussed, and options for solution are presented on the example of workers participation in East German establishments of industry and construction by the IABEstablishment Panel. An optimal matching-algorithm which supplies good matching-results for small samples to assign ‘statistical establishment-twins’ is applied. But by reason of very short primarily spells it can only calculate short time effects. Therefore, the matching method is additionally used to construct longer observation periods. By this new application establishments with recently founded works councils are matched with so called ‘proxy establishments’ with existing works councils. As a result short observation periods are prolonged and information about long-term effects can be given. The effects on productivity, profitability and qualification level of employees show neither in short-term nor in long-term a significant impact on workers’ participation.
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Sind ältere Beschäftigte weniger produktiv? Eine empirische Analyse anhand des LIAB
Lutz Schneider
IWH Discussion Papers,
No. 13,
2006
Abstract
Against the background of an aging labor force in Germany and insufficient job chances of elders the paper rises the question, whether various age groups differ in their productivity levels. The analysis is carried out on the basis of a new linked employer-employee dataset for the years of 2000 and 2003. With respect to the manufacturing sector the cross section regressions provide unambiguous evidence for a higher productivity of mid-age-workers. In contrast the effects regarding the service sector turn out to be of less significance.
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Vertical Intra-industry Trade between EU and Accession Countries
Hubert Gabrisch
IWH Discussion Papers,
No. 12,
2006
Abstract
The paper analyses vertical intra-industry trade between EU and Accession countries, and concentrates on two country-specific determinants: Differences in personal income distribution and in technology. Both determinants have a strong link to national policies and to cross-border investment flows. In contrast to most other studies, income distribution is not seen as time-invariant variable, but as changing over time. What is new is also that differences in technology are tested in comparison with cost advantages from capital/labour ratios. The study applies panel estimation techniques with GLS. Results show country-pair fixed effects to be of high relevance for explaining vertical intraindustry trade. In addition, bilateral differences in personal income distribution and their changes are positive related to vertical intra-industry trade in this special regional integration framework; hence, distributional effects of policies matter. Also, technology differences turn out to be positively correlated with vertical intra-industry trade. However, the cost variable (here: relative GDP per capita) shows no clear picture, particularly not in combination with the technology variable.
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A Concept of Incentive Ethics for the Enhancement of the Social Financial Security According to Hartz IV
Joachim Wilde
IWH Discussion Papers,
No. 1,
2006
Abstract
Reforms of benefits for long-term unemployed in Germany are usually discussed in
terms of workfare and financial incentives. This paper broadens the discussion with a concept of incentive ethics. It analyzes how the dependency on benefits can be left out by allocating so-called moral goods to the long-term unemployed. Comparing the new concept with the last reform (“Hartz IV“), the shortcomings of this reform are revealed. Thus, the paper concludes with a new reform proposal.
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