Energy Efficient Homes in Germany: Lower Energy Requirement in the East and the South – Results of the ista-IWH-Energy-Efficiency-Index 2007
Claus Michelsen
Wirtschaft im Wandel,
No. 9,
2009
Abstract
At the latest since the oil crisis in the beginning of the 1970s, energy efficiency of homes became a widely discussed topic. In the past, it were in first line aspects of the scarcity of fossil energy sources that motivated the debate. Nowadays, climate protection is a main goal of the European energy policy. For this purpose, a new instrument was introduced in 2009. Europe-wide, the “Energy Performance Certificate” for buildings presents detailed information on the required energy for heating, warm water and (indirectly) the resulting costs for tenants. This instrument is designed to provide further information for consumers to influence their behavior in favor of energy efficient buildings.
Until now, there is only little information on spatial aspects of the energy efficiency of housing in Germany. This article presents data on the level of Germany’s NUTS2 regions. In our calculations, we include information on more than 2.6 million flats, interpolating it representatively for the total stock of multifamily buildings and considering the regional climate.
The results of the first ista-IWH-Energy-Efficiency-Index indicate large differences between regions. The required energy for housing is much lower in the eastern and southern parts of Germany, compared to the western or northern parts. Explanations can be seen in a different structure of the housing stock (e.g. age of construction, level of refurbishment). Moreover, first analyses of the market structure indicate that owner occupied flats are more efficient in energy requirement than rental flats. Vacancy rates, the duration of occupation of rented flats and the level of regional income play an additional role for the energy efficiency of the regional housing stock.
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Financial constraints and the margins of FDI
Claudia M. Buch
Bundesbank Discussion Paper 29/2009,
2009
Abstract
Recent literature on multinational firms has stressed the importance of low productivity as a barrier to the cross-border expansion of firms. But firms may also need external finance to shoulder the costs of entering foreign markets. We develop a model of multinational firms facing real and financial barriers to foreign direct investment (FDI), and we analyze their impact on the FDI decision (the extensive margin) and foreign affiliate sales (the intensive margin). We provide empirical evidence based on a detailed dataset of German multinationals which contains information on parent-level and affiliate-level financial constraints as well as about the location the foreign affiliates. We find that financial factors constrain firms’ foreign investment decisions, an effect felt in particular by large firms. Financial constraints at the parent level matter for the extensive, but less
so for the intensive margin. For the intensive margin, financial constraints at the affiliate level are relatively more important.
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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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Evaluating Communication Strategies for Public Agencies: Transparency, Opacity, and Secrecy
Axel Lindner
B.E. Journal of Macroeconomics,
2009
Abstract
This paper analyses in a simple global games framework welfare effects stemming from different communication strategies of public agencies if strategies of agents are complementary to each other: Communication can either be fully transparent, or the agency opaquely publishes only its overall assessment of the economy, or it keeps information completely secret. It is shown that private agents put more weight on their private information in the transparent case than in the case of opacity. Thus, in many cases, the appropriate measure against overreliance on public information is giving more details to the public instead of denying access to public information.
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Lending Technology, Bank Organization and Competition
Hans Degryse, Steven Ongena, Günseli Tümer-Alkan
Journal of Financial Transformation,
2009
Abstract
This paper reviews recent theoretical and empirical studies investigating how both bank technology and organization shape bank-borrower interactions. We refer to two related concepts for bank technology. First, the technologies banks employ in loan granting decisions and second, the advances in information technology linked to the bank's lending technology. We also summarize and interpret the theoretical and empirical work on bank organization and its influence on lending technologies. We show that the choice of lending technology and bank organization depend heavily on the availability of information, the technological progress in the collection of information, as well as the banking market structure and the legal environment. We draw important policy conclusions from the literature. Competition authorities and supervisors have to remain alert to the consequences of the introduction of any new technology because: (1) advances in technology do not necessarily lead to more intense banking competition, and (2) the impact of technological and financial innovation on financial efficiency and stability depends on the incentives of the entire „loan production chain.‟
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Dynamic Order Submission Strategies with Competition between a Dealer Market and a Crossing Network
Hans Degryse, Mark Van Achter, Gunther Wuyts
Journal of Financial Economics,
No. 3,
2009
Abstract
We analyze a dynamic microstructure model in which a dealer market (DM) and a crossing network (CN) interact for three informational settings. A key result is that coexistence of trading systems generates systematic patterns in order flow, which depend on the degree of transparency. Further, we study overall welfare, measured by the gains from trade of all agents, and compare it with the maximum overall welfare. The discrepancy between both measures is attributable to two inefficiencies. Due to these inefficiencies, introducing a CN next to a DM, as well as increasing the transparency level, not necessarily produces greater overall welfare.
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Growth, Volatility, and Credit Market Imperfections: Evidence from German Firms
Claudia M. Buch, Jörg Döpke
Journal of Economic Studies,
2008
Abstract
Purpose – The purpose of this paper is two-fold. First, it studies whether output volatility and growth are linked at the firm-level, using data for German firms. Second, it explores whether the link between volatility and growth depends on the degree of credit market imperfections.
Design/methodology/approach – The authors use a novel firm-level dataset provided by the Deutsche Bundesbank, the so-called Financial Statements Data Pool. The dataset has time series observations for German firms for the period 1997-2004, and the authors use information on the debt-to-assets or leverage ratio of firms to proxy for credit-constraints at the firm-level. As additional proxies for the importance of credit market imperfections, we use information on the size and on the legal status of firms.
Findings – The authors find that higher volatility has a negative impact on growth for small and a positive impact for larger firms. Higher leverage is associated with higher growth. At the same time, there is heterogeneity in the determinants of growth across firms from different sectors and across firms with a different legal status.
Practical implications – While most traditional macroeconomic models assume that growth and volatility are uncorrelated, a number of microeconomic models suggest that the two may be linked. However, it is unclear whether the link is positive or negative. The paper presents additional evidence regarding this question. Moreover, understanding whether credit market conditions affect the link between volatility and growth is of importance for policy makers since it suggests a channel through which the credit market can have long-run welfare implications. The results stress the importance of firm-level heterogeneity for the effects and effectiveness of economic policy measures.
Originality/value – The paper has two main novel features. First, it uses a novel firm-level dataset to analyze the determinants of firm-level growth. Second, it analyzes the growth-volatility nexus using firm-level data. To the best of the authors' knowledge, this is the first paper, which addresses the link between volatility, growth, and credit market imperfections using firm-level data.
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Firm Density in East Germany: Findings from the Business Register
Gerhard Heimpold
Wirtschaft im Wandel,
No. 10,
2008
Abstract
The contribution focuses on the business density in East Germany in comparison with West Germany. For the purpose of the investigation, a new information source was used – the so-called Business Register. Business density in East Germany is of relevance for two reasons: First, when the wall came down in 1989, the East German economy suffered from the lack of private firms. Second, after 2000, a gap in terms of work places is still existent. The empirical data on business density in East Germany do not reveal an unequivocal picture. Measuring business density by comparing the number of firms with the respective number of population reveals a gap in terms of the number of businesses per 10 000 inhabitants in East Germany. The gap is above average with respect to firms in the manufacturing sector, and it is particularly high regarding larger manufacturing firms. Measuring the business density as a quota of the number of firms and the volume of Gross Domestic Product (GDP) reveals a reverse picture: The business density in relation to GDP is on average higher in comparison with the respective value in West Germany. Maybe, the size of the East German market sets limits regarding the number of firms which may act there. However, the size of the domestic market is not so relevant for the firms belonging to the manufacturing sector and to the business-related services since they are expanding to a large extent due to their export activities. Though from the manufacturing sector, relativly positive development perspectives can be expected, the number of large firms per 10 000 inhabitants is relatively low in comparison with West Germany. Public support for strengthening the business landscape in the East German manufacturing sector remains on the agenda of economic policy in Germany.
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Exchange Rates and FDI: Goods versus Capital Market Frictions
Claudia M. Buch, J. Kleinert
World Economy,
forthcoming
Abstract
Changes in exchange rates affect countries through their impact on cross-border activities such as trade and foreign direct investment (FDI). With increasing activities of multinational firms, the FDI channel is likely to gain in importance. Economic theory provides two main explanations why changes in exchange rates can affect FDI. According to the first explanation, FDI reacts to exchange rate changes if there are information frictions on capital markets and if investment depends on firms’ net worth (capital market friction hypothesis). According to the second explanation, FDI reacts to exchange rate changes if output and factor markets are segmented, and if firm-specific assets are important (goods market friction hypothesis). We provide a unified theoretical framework of these two explanations. We analyse the implications of the model empirically using a dataset based on detailed German firm-level data. We find greater support for the goods market than for the capital market friction hypothesis.
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Softening Competition by Inducing Switching in Credit Markets: A Correction
Jan Bouckaert, Hans Degryse, Jorge Fernández-Ruiz, Miguel García-Cestona
Journal of Industrial Economics,
No. 3,
2008
Abstract
In a recent article in this journal, Bouckaert and Degryse [2004] (denoted B&D) present a model in which banks strategically commit to disclosing borrower information. In this note, we point out an error in B&D and show that, although banks' information disclosure may indeed arise in equilibrium, it only does so if adverse selection is not too harsh.
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