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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The Maximum Level of Fines Restricts the Effect of European Competition Law
Henry Dannenberg, Nicole Steinat
Wirtschaft im Wandel,
No. 2,
2008
Abstract
In 2006, the fining guidelines for competition law infringements were completely renewed. The aim of this reform was twofold: on the one hand to decrease the incentive for cartelization and on the other hand to increase the likelihood of cartel detection.
The article studies how company’s decision for or against a cartel is influenced by these guidelines. We show that due to the maximum level of fines – which refers to the worldwide group turnover - an effective deterrence level can be achieved only for those companies, which realize just a small part of their turnover in the relevant market. Their incentive to blow the whistle increases with the cartel duration. This leads to a rising instability of cartels where one member generates only a small part of its turnover in the relevant market. In contrast, the deterrence level for companies that realize a large part of their sales in the relevant market is quite low due to the maximum level of fines.
The article gives a short overview of the risk factor competition law – from a company perspective. We illustrate how the expenditures related to cartel law infringements can be calculated. Further on, the minimum profit margins that are necessary for an economically advantageous cartel are determined. We show that for certain types of cartels already small rates of return are sufficient to make cartel participation attractive.
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Aggressive Orders and the Resiliency of a Limit Order Market
Hans Degryse, Frank de Jong, Maarten Van Ravenswaaij, Gunther Wuyts
Review of Finance,
No. 2,
2005
Abstract
We analyze the resiliency of a pure limit order market by investigating the limit order book (bid and ask prices, spreads, depth and duration), order flow and transaction prices in a window of best limit updates and transactions around aggressive orders (orders that move prices). We find strong persistence in the submission of aggressive orders. Aggressive orders take place when spreads and depths are relatively low, and they induce bid and ask prices to be persistently different after the shock. Depth and spread remain also higher than just before the order, but do return to their initial level within 20 best limit updates after the shock. Relative to the sample average, depths stay around their mean before and after aggressive orders, whereas spreads return to their mean after about twenty best limit updates. The initial price impact of the aggressive order is partly reversed in the subsequent transactions. However, the aggressive order produces a long-term effect as prices show a tendency to return slowly to the price of the aggressive order.
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Evaluation of Further Training Programmes with an Optimal Matching Algorithm
Eva Reinowski, Birgit Schultz, Jürgen Wiemers
Swiss Journal of Economics and Statistics,
2005
Abstract
This paper evaluates the effects of further training on the unemployment duration of different groups of persons representing individual characteristics and some aspects of the economic environment. The Micro Census Saxony enables us to include the employment history as a proxy for unobserved variables and to avoid Ashenfelters Dip. We employ an optimal full matching assignment, which is superior to greedy pair matching in the sense that it avoids the loss of observations due to the design of the algorithm. Overall, we find empirical evidence that participation in further training programmes results in even longer unemployment, with only gradual differences.
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Evaluation of Further Training Programmes with an Optimal Matching Algorithm
Eva Reinowski, Birgit Schultz, Jürgen Wiemers
IWH Discussion Papers,
No. 188,
2004
Abstract
This study evaluates the effects of further training on the individual unemployment duration of different groups of persons representing individual characteristics and some aspects of the economic environment. The Micro Census Saxony enables us to include additional information about a person's employment history to eliminate the bias resulting from unobservable characteristics and to avoid Ashenfelter's Dip. In order to solve the sample selection problem we employ an optimal full matching assignment, the Hungarian algorithm. The impact of participation in further training is evaluated by comparing the unemployment duration between participants and non-participants using the Kaplan-Meier-estimator. Overall, we find empirical evidence that participation in further training programmes results in even longer unemployment duration.
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Opportunities and Risks for Regional Development in Former East German Brown Coal Mining Areas: The Case of the “Geiseltal” Mining Area in Saxony-Anhalt
Peter Franz
Wirtschaft im Wandel,
No. 11,
2003
Abstract
The rehabilitation of former brown coal open mining locations represents an important section of the economic and ecological restructuring process in East Germany, taking place since 1990. The recent progress in rehabilitation has led to large amounts of newly disposable space and thus expands the opportunities for regional development, especially with respect to tourism. But the possible positive effects are at risk because of diverse obstacles. In the case of the former open mining location of the “Geiseltal” in the south of Saxony-Anhalt such obstacles show up in form of a strong identification of the residents with the tradition of mining industry, in form of the expansive interests of nature protection organizations, and in form of inadequate organisational structures of the local public administration. In the case of a tourism-oriented development strategy risks arise concerning the actual duration of the remaining recultivation process and concerning the competition with locations with similar development targets.
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Evaluation von Maßnahmen der aktiven Arbeitsmarktpolitik mit Hilfe eines iterativen Matching-Algorithmus - Eine Fallstudie über langzeitarbeitslose Maßnahmeteilnehmer in Sachsen
Eva Reinowski, Birgit Schultz, Jürgen Wiemers
IWH Discussion Papers,
No. 173,
2003
Abstract
The paper evaluates the effects of two labor market programs in Germany, namely the Job Creation- /Structural Adjustment Scheme and Vocational Training, on the unemployment duration of long term unemployed persons. The study uses data from the Mikrozensus Sachsen. A two step Nearest-Neighbor-Matching is employed to solve the sample selection problem. The first step is the estimation of the participation tendency to obtain potential pairs and to compute their Mahalanobis distances. For the assignment of pairs in the second step two different procedures are used: a standard technique and a new one - the iterative improvement of an initial assignment. This process is superior to the standard matching algorithms in the sense that it allows for a closer match between participants and non-participants. Including additional information about a person’s employment history enables us to eliminate the bias due to unobservables. The impact of participation in a labor market program is evaluated by comparing the unemployment duration between both groups using the Cox Proportional Hazard Model. Overall we find empirical evidence that both participation in Job Creation- /Structural Adjustment Scheme and Vocational Training result in even longer unemployment.
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Fiscal costs of employment creating schemes - a case study
Birgit Schultz
Wirtschaft im Wandel,
No. 1,
2002
Abstract
The evaluation on job creation programs shows a longer unemployment duration of treatment than the non-treatment. In a case study we calculate the additional public cost of the treatment and the subsequent demand of treatment compared with the outcome in a non-treated situation. Additionally we are looking on the break even.
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Relationship Lending within a Bank-Based System: Evidence from European Small Business Data
Hans Degryse, Patrick Van Cayseele
Journal of Financial Intermediation,
No. 1,
2000
Abstract
We investigate relationship lending using detailed contract information from nearly 18,000 bank loans to small Belgian firms operating within the continental European bank-based system. Specifically, we investigate the impact of different measures of relationship strength on price and nonprice terms of the loan contract. We test for the possibility of rent shifting by banks. The evidence shows two opposing effects. On the one hand, the loan rate increases with the duration of a bank–firm relationship. On the other hand, the scope of a relationship, defined as the purchase of other information-sensitive products from a bank, decreases the loan's interest rate substantially. Relationship duration and scope thus have opposite effects on loan rates, with the latter being more important. We also find that the collateral requirement is decreasing in the duration of the relationship and increasing in its scope.
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Initial and longitudinal effects of benefit variations on unemployment duration in Germany
Hilmar Schneider, Reinhard Hujer
IWH Discussion Papers,
No. 100,
1999
Abstract
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