Professor Qualities and Student Achievement
Florian Hoffmann, Philip Oreopoulos
Review of Economics and Statistics,
No. 1,
2009
Abstract
This paper analyzes the importance of teacher quality at the college level. Instructors are matched to objective and subjective characteristics of teacher quality to estimate the impact of rank, salary, and perceived effectiveness on student performance and subject interest. Student and course fixed effects, time of day and week controls, and students' lack of knowledge about first-year instructors help minimize selection biases. Subjective teacher evaluations perform well in measuring instructor influences on students, while objective characteristics such as rank and salary do not. Overall, the importance of college instructor differences is small, but important outliers exist.
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The Exchange Rate of the Euro Cannot be Explained Fundamentally even Ten Years after the Introduction of the New Currency
Tobias Knedlik
Wirtschaft im Wandel,
No. 1,
2009
Abstract
On first of January 2009, the Euro’s tenth birthday can be celebrated. The introduction of the Euro led to diminishing importance of trade in foreign currency for the Euro-countries. However, a significant part of foreign trade of Germany and other Euro-members is still nominated in foreign currency. Therefore, the external value of the Euro plays a crucial role for the European economy. Since the early depreciation of the exchange rate just after the introduction until 2000, an almost steady increase in the external value of the Euro could be observed. The contribution elaborates on the exchange rate development and tests whether the Euro was following a path as it would be predicted by both, the interest rate parity theory and the purchasing parity theory. Both theoretical approaches are not able to explain the specific valuation figure of the Euro. For the conduct of economic forecasts, it is to conclude that modelling exchange rate developments as random processes can be legitimate. Regarding exchange rate policy, it remains to ask which alternative policy approaches might be better suitable for the European economy.
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Business Cycle Forecast 2009: World Financial Crisis Triggers Deep Recession in Germany
Wirtschaft im Wandel,
No. 1,
2009
Abstract
At the beginning of 2009, the major industrialized economies are in recession. The financial turmoil has developed into a crisis of confidence to and solvency of the financial sector, raising financing costs and lowering the value of assets for firms and households. Monetary and fiscal policies have reacted strongly, but they will not succeed in ending the recession until the financial sectors in the US and in Western Europe have stabilized. This forecast is made under the assumption that stabilization will start in the second half of 2009 because the continued protection of important financial institutions by governments will restore confidence – albeit at a low level – and because at this time, the fall of US-house prices will start to fade off.
The German economy is hit particularly hard, because the financial crisis depresses worldwide investment demand and the sectors producing investment goods are at the heart of the German economy. The recession will not end before the second half of 2009, and capacity utilization will decrease throughout the year. We expect a tentative revival to begin in a recovery of exports. While private investment will shrink markedly, consumption of private households and the government as well as public investment will dampen the downturn. GDP will shrink by 1.9% in Germany and in East Germany by 1.5% because this region is less dependent on exports.
Economic policy has to help restoring confidence, and this can only be achieved if it behaves in a consistent and predictable way.
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A Lesson Learned? Pre- and Post-Crisis Entry Decisions in Turkish Banking
H. Evren Damar
Contemporary Economic Policy,
No. 1,
2009
Abstract
This study looks at the determinants of entry by Turkish banks into local markets during the periods before and after the crisis of 2000–2001. Motivated by a theoretical model of entry, results of fixed-effects logit regressions suggest that there has been a change in the geographical diversification strategies of Turkish banks. It appears that the dominance of strategic concerns, such as competing with banks of similar size, has diminished, while economic concerns, such as incumbent characteristics and cost considerations, have become more important. Overall, the postcrisis restructuring policies seem to have led to improved decision making in the sector.
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Contestability, Technology and Banking
S. Corvoisier, Reint E. Gropp
ZEW Discussion Papers, No. 09-007,
No. 7,
2009
Abstract
We estimate the effect of internet penetration on retail bank margins in the euro area. Based on an adapted Baumol [1982] type contestability model, we argue that the internet has reduced sunk costs and therefore increased contestability in retail banking. We test this conjecture by estimating the model using semi-aggregated data for a panel of euro area countries. We utilise time series and cross-sectional variation in internet penetration. We find support for an increase in contestability in deposit markets, and no effect for loan markets. The paper suggests that for time and savings deposits, the presence of brick and mortar bank branches may no longer be of first order importance for the assessment of the competitive structure of the market.
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Race to the Market: Can Standards Survive the Acceleration of Innovation and Product Life Cycles?
Ulrich Blum
Spatial Dispersed Production and Network Governance, Papers Presented at the 11th Uddevalla Symposium, 15 – 17. May 2008, Kyoto, Research Report 2008,
2008
Abstract
Plagiarism of emerging market countries has for a considerable time been seen as the main challenge to the western approach of codifying and securing intellectual property rights (IPRs). This neglects the fact that historically all countries which tried to converge to the level of successful economies copied technology. The discussion shadows our view that the more imminent question is whether the steady increase in competition intensity which shortens product life cycles and puts pressure on the invention and innovation system, provides enough time to patent and to standardize. As patent activity not only provides incentives for sinking costs into R&D but is also a first step in the dissemination of technologies, and as standards, especially formal standards, generate level playing fields in broad and reliable markets, this may be critical in the long run. Furthermore, the migration of technologies as a result of a steady reorganization of the spatial division of labor may lead to the adverse situation that countries harboring technologies do not have appropriate institutions for knowledge codification.
Exogenous factors that – at least in the short run – cannot be influenced by the standardization bodies are the level of cooperation among interested parties (and mutual trust and institutional linkage), the competitiveness of the technology, the ability to generate externalities by knowledge codification, and the productivity of the technologies. The most important single success factor that standardization bodies can influence is the speed with which a committee proceeds to timely publish formal standards. With reference to a game-theoretical model and based on data for 1997 and 2007 on published formal standards, we show that until now, standardization bodies seem to have successfully coped with the situation.
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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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In which Ways do Universities React to New Technologies? The Case of Photovoltaics
Peter Franz
Wirtschaft im Wandel,
No. 12,
2008
Abstract
Universities can be conceived as actors in regional innovative systems with the functions to make available new knowledge for a region, to contribute to the human capital formation by teaching, and to the extension of the knowledge by research. These functions are in particular important concerning the adaptation of new technologies, e.g. photovoltaics. 89 German universities – amongst them 65 universities of applied sciences – meanwhile offer 171 full-time study courses with a degree oriented to photovoltaics. Each federal state has at least one university location offering such degrees. A certain spatial concentration of courses can be shown for Saxony, for the Ruhr Area and for the Rhine Main Region. Almost 90% of the degrees are offered by faculties of engineering. 43% of the universities with degrees in photovoltaics have successfully applied for research grants from the photovoltaics research programs of the federal government. These numbers show a spatial concentration of research in the South whereas the photovoltaics industry is concentrated in the East of Germany. This distribution indicates that the research opportunities tied to the photovoltaics industry are not in the Eastern part of Germany. Further research will have to pay more attention to the role of research institutes.
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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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