Are European Equity Style Indices Efficient? – An Empirical Quest in Three Essays
Marian Berneburg
Schriften des IWH,
No. 28,
2008
Abstract
Many situations in the history of the stock markets indicate that assets are not always efficiently priced. But why does it matter whether the stock market is efficiently priced? Because “well-functioning financial markets are a key factor to high economic growth”. (Mishkin and Eakins, 2006, pp. 3-4) In three essays, it is the aim of the author to shed some more light on the topic of market efficiency, which is far from being resolved. Since European equity markets have increased in importance globally, the author, instead of focusing on US markets, looks at a unified European equity market. By testing for a random walk in equity prices, revisiting Shiller’s claim of excess volatility through the means of a vector error correction model, and modifying the Gordon-Growth-Model, the book concludes that a small degree of inefficiency cannot be ruled out. While usually European equity markets are pricing assets correctly, some periods (e.g. the late 1990s and early 2000s) show clear signs of mispricing; the hypothesis of a world with two states (regime one, a normal efficient state, and regime two, a state in which markets are more momentum driven) presents a possible explanation.
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Evidence on the effects of inflation on price dispersion under indexation
Juliane Scharff, S. Schreiber
IMK Working Paper, No. 12/2008,
2008
Abstract
Distortionary effects of inflation on relative prices are the main argument for inflation stabilization in macro models with sticky prices. Under indexation of non-optimized prices those models imply a nonlinear and dynamic impact of inflation on the cross-sectional price dispersion (relative-price variability, RPV). Using US sectoral prices we estimate (a generalized form of) the theoretical relationship between inflation and RPV. We confirm the impact of inflation fluctuations but find hitherto neglected endogeneity biases, and our IV and GMM estimates indicate that average (“trend“) inflation is significant for indexation. Lagged inflation is less important.
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German Economy on the Brink of Recession
Wirtschaft im Wandel,
2. Sonderausgabe
2008
Abstract
In autumn 2008, the word economy is in a downswing, caused by the commodity and energy price hike of the first half of the year, housing crises in the US and some other important countries, and in particular by the financial crisis that has recently intensified. The downswing will continue this year and for some time during 2009, and will only come to an end later next year if governments and central banks succeed in stabilizing financial markets in the coming months. In this case, lower prices of commodities and still high growth dynamics in important emerging markets countries will lead to a tentative revival of the world economy.
The German economy is on the brink of a recession. It is particularly vulnerable to a global downswing because exports of investment goods are of upmost importance for the overall economy. Because the uncertainty about the worldwide effects of the financial crisis is very high, the forecast is split. A more probable scenario is based on the assumption of a stabilizing world economy. In this scenario, the growth rate of the German economy in 2009 is 0.2%. The second scenario is based on the assumption of a worldwide recession next year and forecasts that German GDP will shrink by 0.8% in 2009.
Concerning policy, the institutes recommend a strengthening of the capital base of banks via injection of government money. This should be done in a way that gives incentives to banks for attracting additional capital from private sources.
A special chapter of the report analyzes the nature and causes of the price hikes of energy and commodities in the first half of 2008.
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Using multivariate statistical methods to identify municipality clusters
Dirk Trocka
Теоретические основы и опыт стратегическ,
2008
Abstract
The monthly calculation of the Consumer Price Index is based on a sample survey in different municipalities. This study intends to evaluate and improve the representativity of the municipalities within the sample in Saxony-Anhalt with respect to their number and type applying multivariate analysis. The analysis uses variables representing both demand and supply conditions in the municipalities that determine market outcomes. It also considers the importance of a municipality for the neighbouring area.
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In Focus: State is Winner of Recent German Upswing
Axel Lindner
Wirtschaft im Wandel,
No. 9,
2008
Abstract
In 2006 and 2007, production expanded briskly in Germany. Real disposable incomes of private households, however, were almost stagnant. This article sheds, with help of national accounts data, some light on the reasons for this discrepancy: By far the most important factor is that the share of the general government in the disposable income of the whole economy increased strongly. The share of corporations in the disposable income increased, too. Finally, the deflator for consumption rose by more than the deflator of GDP mainly because of the price hike for imported commodities and energy.
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Forecasting the CO2 certificate price risk
Henry Dannenberg, Wilfried Ehrenfeld
IWH Discussion Papers,
No. 5,
2008
Abstract
Modeling the price risk of CO2 certificates is one important aspect of integral corporate risk management related to emissions trading. The paper presents a risk model which may be the basis for evaluating the risk of emission certificate prices. We assume that the certificate price is determined by the expected marginal CO2 abatement costs prevailing at the current trade period and stochastically fluctuates around the respective level as returned from the mean reversion process. Due to uncertainties about future environmental states we suppose that within one trade period, erratic changes in the expected marginal abatement costs may occur leading to shifts in the price level. The aim of the work is to model the erratic changes of the expected reversion level and to estimate the parameters of the mean reversion process.
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Oil Prices and International Trade: How Petrodollar Recycling Affects the Industrialised Countries
Götz Zeddies
Wirtschaft im Wandel,
No. 4,
2008
Abstract
Since 2004, prices for crude oil nearly tripled at international commodity markets. In the wake of the oil crises of the 1970s and ‘80s, numerous empirical studies analysing the macroeconomic effects of sharp increases in commodity prices were carried out pointing at the risks of oil price rises for GDP growth in oil-importing countries. However, in most of these analyses, the impact of oil price increases on international trade of oil-importing countries, which gained in importance in the course of globalisation, is considered only marginally. This is especially the case for the additional revenues of oil-exporting countries spent in large parts for imports from and investment in the industrialised economies.
The present article examines the impact of oil price increases on merchandise exports and imports of single oil-importing industrialised countries. The results show that the curbing effects on merchandise exports are lower than on imports. Whereas import demand responds disproportionally high on the decline in consumption and investment in consequence of oil price increases, the effects on merchandise exports are ambivalent. On the one hand, exports to oil-importing trading partner countries decline due to the local economic downturns, but on the other, exports to oil-exporting countries sharply increase. As a consequence, the negative impact of rising oil prices on macroeconomic activity in oil-importing countries is lowered by the external sector due to growing net exports.
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Business cycle forecast 2008: German upswing takes a break
Wirtschaft im Wandel,
No. 1,
2008
Abstract
Economic growth in the industrial countries will be much more muted in 2008 than in the past year. One cause is the prolonged oil price hike during 2007. The second and more important cause is the intensification of tensions on world financial markets. Due to problems in the financial sector, credit expansion will slow next year in the euro area as well as in the US. This will dampen demand in the real economy. A significant downswing in the industrial countries, however, is not the most likely scenario: in the US, expansive economic policy and a weak dollar that gives production in the US a competitive edge will prevent the economy from sliding into recession. In the euro area, high profitability of firms and structural improvements in the working of labour markets will help the economy cope with the stronger euro and with higher costs of external financing due to the turmoil in the financial sector. In Germany, the upswing has still not reached the demand of private households. The main reason is that real wages were stagnating in 2007 and will not rise by much in 2008, since inflation has accelerated considerably at the end of last year. In addition, weaker dynamics of external demand will dampen export growth. This and the end of tax incentives for investment at the end of 2007 will dampen investment activity. All in all, the economy will slow down in the first half of 2008. However, chances are good that the upswing will only have taken a break: when the dampening external shocks have ceased, the driving powers of the upswing will prevail; dynamic employment growth is a reflection of the strong confidence of firms. A major risk for employment and for the German economy in general is, however, the possibility that the policy concerning the labour markets changes course; bad omens are the recent the introduction of minimum wages for postal services and the announced extension of unemployment benefits for persons older than 50.
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Poland: Strong Domestic Demand Will Drive Economic Activity
Martina Kämpfe
Wirtschaft im Wandel,
No. 12,
2007
Abstract
Domestic demand was the main force behind growth in 2007. The high level of both, gross fixed investments of firms and private consumption, led to extended industrial production capacities and increased demand of imports. Extraordinarily high was the demand for the output of construction firms. Rising employment and wages and the continuing expansion of loans to the household sector supported the private consumption growth. The high levels of capacity utilization coincide with shortages of labour. First responses to this were wage hikes, which pushed the unit labour costs and led to some increase in consumer price inflation. In 2008, expansion of economic activity will continue at only some lower level, driven by investments and consumption.
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Market Follows Standards
Ulrich Blum
Wirtschaft im Wandel,
No. 10,
2007
Abstract
Standards are an important part of the codified knowledge of a society. In contrast to industry standards, formal standards are created in a consensus-based procedure open to all interested parties. Only if an economic interest for application exists will formal standards be produced. Interested parties have to shoulder participation costs themselves, which enforces economic interest. Up to a certain extent, governments also trigger and finance formal standardisation processes through the new approach, which creates a framework that is filled by private activity. Standards stand at the end of intellectual property rights if the totality of the value chain of knowledge production is looked at. One important aspect is their accessibility and the inclusion of all necessary intellectual property rights, especially patents, at reasonable prices. Conversely, consortia may exclude groups from the use of their standards. By preventing the licensing of those patents included in a standard, they can effectively block market entry. Thus, “successful” standards often face antitrust problems. Formal standards reduce costs of production through economies of scale, economies of scope and network-economies. Goods and processes that are standardized signal quality, the inclusion of high technological standards and permanent presence in the markets, which again accelerates market dissemination. Firms face a dilemma: On the one hand, the penetration of a markets with industry standards offers potentials for high profits; on the other hand, this has to be balanced against the risk of failure, especially if clients are hesitant because they do not know which standard will be successful in the end. Formal standards create and stabilize trust markets. This is especially true in the area of globalisation. Europe, which has to face an enormous competition in the international knowledge economy, needs an institutionally efficient approach to formal standardisation. This contribution addresses future problems of the European standardisation that have been developed within the framework of a working group of the European Standardisation Organisation called Future Landscape of European Standardisation (FLES).
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