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.
Read article
Progressivity and flexibility in developing an effective competition regime: using experiences of Poland, Ukraine and South Africa for developing countries. Forschungsbericht innerhalb des EU-Projektes: Competition Policy Foundations for Trade Reform, Regulatory Reform, and Sustainable Development, 2005
Franz Kronthaler, Johannes Stephan
One-off Publications,
No. 5,
2005
Abstract
The paper discusses the role of the concept of special and differential treatment in the framework of regional trade agreements for the development of a competition regime. After a discussion of the main characteristics and possible shortfalls of those concepts, three case countries are assessed in terms of their experience with progressivity, flexibility, and technical and financial assistance: Poland was led to align its competition laws to match the model of the EU. The Ukraine opted voluntarily for the European model, this despite its intense integration mainly with Russia. South Africa, a developing country that emerged from a highly segregated social fabric and an economy dominated by large conglomerates with concentrated ownership. All three countries enacted (or comprehensively reformed) their competition laws in an attempt to face the challenges of economic integration and catch up development on the one hand and particular social problems on the other. Hence, their experience may be pivotal for a variety of different developing countries who are in negotiations to include competition issues in regional trade agreements. The results suggest that the design of such competition issues have to reflect country-particularities to achieve an efficient competition regime.
Read article
Asset Tangibility and Capital Allocation within Multinational Corporations
Diemo Dietrich
IWH Discussion Papers,
No. 4,
2006
Abstract
We investigate capital allocation across a firm's divisions that differ with respect to the degree of asset tangibility. We adopt an incomplete contracting approach where the outcome of potential debt renegotiations depends on the liquidation value of assets. However, with diversity in terms of asset tangibility, liquidation proceeds depend on how funds have been allocated across divisions. As diversity can be traced back to institutional differences between countries, we provide a rationale for multidivisional decision- making in an international context. A main finding is that multinationals may be bound to go to certain countries when financiers cannot control the capital allocation.
Read article
Progressivity and Flexibility in Developing an Effective Competition Regime: Using Experiences of Poland, Ukraine, and South Africa for developing countries
Franz Kronthaler, Johannes Stephan
IWH Discussion Papers,
No. 6,
2006
Abstract
The paper discusses the role of the concept of special and differential treatment in the framework of regional trade agreements for the development of a competition regime. After a discussion of the main characteristics and possible shortfalls of those concepts, three case countries are assessed in terms of their experience with progressivity, flexibility, and technical and financial assistance: Poland was led to align its competition laws to match the model of the EU. The Ukraine opted voluntarily for the European model, this despite its intense integration mainly with Russia. South Africa, a developing country that emerged from a highly segregated social fabric and an economy dominated by large conglomerates with concentrated ownership. All three countries enacted (or comprehensively reformed) their competition laws in an attempt to face the challenges of economic integration and catch up development on the one hand and particular social problems on the other. Hence, their experience may be pivotal for a variety of different developing countries who are in negotiations to include competition issues in regional trade agreements. The results suggest that the design of such competition issues have to reflect country-particularities to achieve an efficient competition regime.
Read article
Economies of Scope in European Railways: An Efficiency Analysis
Christian Growitsch, Heike Wetzel
IWH Discussion Papers,
No. 5,
2006
Abstract
In the course of railway reforms in the end of the last century, national European governments, as well the EU Commission, decided to open markets and to separate railway networks from train operations. Vertically integrated railway companies – companies owning a network and providing transport services – argue that such a separation of infrastructure and operations would diminish the advantages of vertical integration and would therefore not be suitable to raise economic welfare. In this paper, we conduct a pan-European analysis to investigate the performance of European railways with a particular focus on economies of vertical integration. We test the hypothesis that integrated railways realise economies of joint production and, thus, produce railway services on a higher level of efficiency. To determine whether joint or separate production is more efficient we apply a Data Envelopment Analysis super-efficiency bootstrapping model which relates the efficiency for integrated production to a virtual reference set consisting of the separated production technology. Our findings are that in a majority of European Railway companies exist economies of scope.
Read article
Die Bedeutung interner Kapitalmärkte für die Organisationsform von Unternehmen
Diemo Dietrich
WiSt - Wirtschaftswissenschaftliches Studium,
2006
Abstract
Contemporary financial economics has broken new grounds when considering that firms typically have not only a single investment opportunity available conducted by a single manager. A Firm has in fact several projects where headquarters delegates the undertaking to project managers. From this perspective, what conclusions can be drawn regarding the functioning of capital markets? What role do internal capital markets play? What consequences does it have for the borders of a firm?
Read article
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.
Read article
Determinants of employment - the macroeconomic view
Christian Dreger, Heinz P. Galler, Ulrich (eds) Walwai
Schriften des IWH,
No. 22,
2005
Abstract
The weak performance of the German labour market over the past years has led to a significant unemployment problem. Currently, on average 4.5 mio. people are without a job contract, and a large part of them are long-term unemployed. A longer period of unemployment reduces their employability and aggravates the problem of social exclusion.
The factors driving the evolution of employment have been recently discussed on the workshop Determinanten der Beschäftigung – die makroökonomische Sicht organized jointly by the IAB, Nuremberg, and the IWH, Halle. The present volume contains the papers and proceedings to the policy oriented workshop held in November 2004, 15-16th. The main focus of the contributions is twofold. First, macroeconomic conditions to stimulate output and employment are considered. Second, the impacts of the increasing tax wedge between labour costs and the take home pay are emphasized. In particular, the role of the contributions to the social security system is investigated.
In his introductory address, Ulrich Walwei (IAB) links the unemployment experience to the modest path of economic growth in Germany. In addition, the low employment intensity of GDP growth and the temporary standstill of the convergence process of the East German economy have contributed to the weak labour market performance. In his analysis, Gebhard Flaig (ifo Institute, München) stresses the importance of relative factor price developments. A higher rate of wage growth leads to a decrease of the employment intensity of production, and correspondingly to an increase of the threshold of employment. Christian Dreger (IWH) discusses the relevance of labour market institutions like employment protection legislation and the structure of the wage bargaining process on the labour market outcome. Compared to the current setting, policies should try to introduce more flexibility in labour markets to improve the employment record. The impact of interest rate shocks on production is examined by the paper of Boris Hofmann (Deutsche Bundesbank, Frankfurt). According to the empirical evidence, monetary policy cannot explain the modest economic performance in Germany. György Barabas and Roland Döhrn (RWI Essen) have simulated the effects of a world trade shock on output and employment. The relationships have been fairly stable over the past years, even in light of the increasing globalization. Income and employment effects of the German tax reform in 2000 are discussed by Peter Haan and Viktor Steiner (DIW Berlin). On the base of a microsimulation model, household gains are determined. Also, a positive relationship between wages and labour supply can be established. Michael Feil und Gerd Zika (IAB) have examined the employment effects of a reduction of the contribution rates to the social security system. To obtain robust results, the analysis is done under alternative financing scenarios and with different macroeconometric models. The impacts of allowances of social security contributions on the incentives to work are discussed by Wolfgang Meister and Wolfgang Ochel (ifo München). According to their study, willingness to work is expected to increase especially at the lower end of the income distribution. The implied loss of contributions could be financed by higher taxes.
Read article
What if Financial Markets were inefficient?
Marian Berneburg
Globale Wirtschaft - nationale Verantwortung: Wege aus dem Druckkessel,
2005
Abstract
Read article
The coalition treaty from a fiscal point of view
Kristina vanDeuverden
Wirtschaft im Wandel,
No. 12,
2005
Abstract
After weeks of negotiations the coalition finally agreed on the conditions for their political work. Not surprisingly, the coalition agreement is complex and intransparent – with a multitude of single measures far away from a precise definition. Quantifying the programme and estimating resulting cash flows is currently difficult; official calculations are – if at all – only partly available. Anyhow, the contract will form the basis for economic policy during the next four years; therefore its evaluation by now is indispensable. The thin red line of the agreement – not astonishingly when considering the precarious financial situation of the public sector – is consolidation. However, more than 80% of the consolidation volume results from the revenue side. Though one third of this is due to the cutback of tax exemptions, the lion’s share comes from raising tax rates, mainly the VAT standard rate. In contrast, cutting back public expenditure is minor and the agreement clearly comes short of the Koch/Steinbrück proposal; even new tax reliefs are created. The consolidation is almost completely borne by private households. Enterprises as a whole are barely hit. However, they have to wait until 2008 for a reform of company taxation – one of the most pressing problems in this legislative period. To reduce the companies tax burden until the reform starts the conditions for tax depreciation are temporarily relaxed. Anyway, from an international point of view the statutory tax rate is an important signal to enterprises deciding where to invest. Lowering effective tax rates by changing depreciation conditions is intransparent and, thus, will be less effective. Furthermore savings within the public sector are planned to accomplish consolidation; 10 billion Euro should result from efficiency gains and reduced expenditure. Consolidation measures mainly focus on the budget of the federal government. However, Länder and communities will participate in the additional tax revenues. In contrast, social securities will loose – and therefore also the share of employment that is subject to social insurance contribution. Particularly the unemployment insurance will be burdened by the decrease of its premium rate. Besides, the federal government will reduce its grants to the pension funds and most notably the health system. The contract is dominated by fiscal constraints. Cyclical requirements are considered only cursory and pressing structural reforms are put off. The reforms of company’s taxation, of fiscal federalism, of the health system as well as a proceeding reform of the labour market are only proposed. How and when measures in these fields are realised will determine whether fiscal policy can set a new course.
Read article