Determinants of Academic-Industry Linkages and Incubator-internal Cooperation Patterns of Incubator Firms: Empirical Evidence from Germany
Michael Schwartz, Christoph Hornych
IWH Discussion Papers,
No. 2,
2009
Abstract
The article examines cooperation patterns of firms located in German business incubators (BIs) and technology centers. Based on cross-sectional data, the study explores the network activities within the tenant portfolio and the academic-industry linkages of the tenant firms. In this respect, we contribute to the literature on the impact of business incubation by explicitly considering differences regarding cooperation patterns between diversified and specialized incubator facilities. Contrary to common assumptions, we do not find a higher propensitiy for incubator-internal cooperation activities for firms located in specialized BIs. However, firms located in specialized BIs show significantly higher propensity to engage in academic-industry linkages compared to firms located in diversified incubators.
Read article
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.
Read article
Vergleich der Kreditrisikobewertung bei Berücksichtigung von Schätzunsicherheit und Korrelation – Welche Risikokomponente Sollten Unternehmen bei der Bewertung von Forderungsportfoliorisiken wann berücksichtigen?
Henry Dannenberg
Die Unternehmung Swiss Journal of Business Research and Practice,
2008
Abstract
The use of probability of default estimates to assess the risks of a credit portfolio should not ignore estimation uncertainty. The latter can be quantified by confidence intervals. But assumptions about dependencies of these intervals are inconsistent with assumptions of conventional credit portfolio models. Based on simulation studies this paper shows that a model which includes estimation uncertainty but ignores default correlation might estimate the real credit risk more correctly than a model that implicates default correlation but ignore estimation uncertainty. The latter is a trait of conventional credit portfolio models. In this paper quantifying of estimation uncertainty based on the idea of confidence intervals and the underlying probability distributions of these intervals.
Read article
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.
Read article
East German Innovation System attractive for Foreign Investors
Jutta Günther, Björn Jindra, Johannes Stephan
Wirtschaft im Wandel,
No. 1,
2008
Abstract
Foreign direct investment (FDI) plays an important role in the catching-up process of East Germany due to direct employment- and demand related effects. However, this article takes a technological perspective on FDI in East Germany. It considers technological activities of foreign investors (R&D and innovation) and asks to what extent these are integrated into the East German innovation system. In other words, do foreign investors interact technologically with domestic enterprises and scientific institutions? So far, there seems to be a striking absence of empirical evidence on this issue. The basis for our analysis is recent data from a representative survey of foreign direct investors in East German manufacturing completed in 2007. The findings show that on average foreign investors are more R&D and innovation intensive compared to the total of East German manufacturing. In addition, their technological activities are by no means isolated from the East German innovation system. Foreign subsidiaries seem to benefit from East German customers, suppliers and especially scientific institutions with regard to locally conducted R&D and innovation. Contrary to existing assumptions the East German innovation system seems to be particularly attractive for the most technologically active foreign subsidiaries. This could constitute a major locational advantage for FDI in East Germany over Central and East Europe. However, the technologically active foreign investors believe that only East German suppliers are able to benefit from their technological cooperation. The same cannot be said about East German customers or competitors. Thus, the potential for technological externalities from FDI in East Germany seems still to be limited.
Read article
A Simple Representation of the Bera-Jarque-Lee Test for Probit Models
Joachim Wilde
IWH Discussion Papers,
No. 13,
2007
Abstract
The inference in probit models relies on the assumption of normality. However, tests of this assumption are not implemented in standard econometric software. Therefore, the paper presents a simple representation of the Bera-Jarque-Lee test, that does not require any matrix algebra. Furthermore, the representation is used to compare the Bera-Jarque- Lee test with the RESET-type test proposed by Papke and Wooldridge (1996).
Read article
Systematic Mispricing in European Equity Prices?
Marian Berneburg
IWH Discussion Papers,
No. 6,
2007
Abstract
One empirical argument that has been around for some time and that clearly contra- dicts equity market efficiency is that market prices seem too volatile to be optimal estimates of the present value of future discounted cash flows. Based on this, it is deduced that systematic pricing errors occur in equity markets which hence can not be efficient in the Effcient Market Hypothesis sense. The paper tries to show that this so-called excess volatility is to a large extend the result of the underlying assumptions, which are being employed to estimate the present value of cash flows. Using monthly data for three investment style indices from an integrated European Equity market, all usual assumptions are dropped. This is achieved by employing the Gordon Growth Model and using an estimation process for the dividend growth rate that was suggested by Barsky and De Long. In extension to Barsky and De Long, the discount rate is not assumed at some arbitrary level, but it is estimated from the data. In this manner, the empirical results do not rely on the prerequisites of sta- tionary dividends, constant dividend growth rates as well as non-variable discount rates. It is shown that indeed volatility declines considerably, but is not eliminated. Furthermore, it can be seen that the resulting discount factors for the three in- vestment style indices can not be considered equal, which, on a risk-adjusted basis, indicates performance differences in the investment strategies and hence stands in contradiction to an efficient market. Finally, the estimated discount rates under- went a plausibility check, by comparing their general movement to a market based interest rate. Besides the most recent data, the estimated discount rates match the movements of market interest rates fairly well.
Read article
Schätzunsicherheit oder Korrelation, Welche Risikokomponente sollten Unternehmen bei der Bewertung von Kreditportfoliorisiken wann berücksichtigen?
Henry Dannenberg
IWH Discussion Papers,
No. 5,
2007
Abstract
The use of probability of default estimates to assess the risks of a credit portfolio should not ignore estimation uncertainty. The latter can be quantified by confidence intervals. But assumptions about dependencies of these intervals are inconsistent with assumptions of conventional credit portfolio models. Based on simulation studies this paper shows, that a model which include estimation uncertainty but ignore default correlation might estimate the real credit risk more correctly than a model that implicates default correlation but ignore estimation uncertainty. The latter is a trait of conventional credit portfolio models. In this paper quantifying of estimation uncertainty based on the idea of confidence intervals and the underlying probability distributions of these intervals.
Read article
Where enterprises lead, people follow? Links between migration and FDI in Germany
Claudia M. Buch, J. Kleinert, Farid Toubal
European Economic Review,
No. 8,
2006
Abstract
Standard neoclassical models of economic integration are based on the assumptions that capital and labor are substitutes and that the geography of factor market integration does not matter. Yet, these two assumptions are violated if agglomeration forces among factors from specific source countries are at work. Agglomeration implies that factors behave as complements and that the country of origin matters. This paper analyzes agglomeration between capital and labor empirically. We use state-level German data to answer the question whether and how migration and foreign direct investment (FDI) are linked. Stocks of inward FDI and of immigrants have similar determinants, and the geography of factor market integration matters. There are higher stocks of inward FDI in German states hosting a large foreign population from the same country of origin. This agglomeration effect is confined to higher-income source countries.
Read article
Microeconometric Evaluation and the Selection Bias – A practical Survey of Nonparametrical Solution Methods
Eva Reinowski
Zeitschrift für Evaluation 2,
No. 2,
2006
Abstract
The application of evaluation strategies becomes more important in various fields of study. The problem of self-selection associated with microeconomic evaluation can be solved in different ways, but nonparametrical solutions are most popular. The study gives an overview of nonparametrical solution methods for this problem. The aim is to close the gap between introductory and the more sophisticated literature and to give some practical guidance for the choice of the appropriate method for empirical application. The assumptions as well as advantages and drawbacks for empirical application and the requirements to the data base are described for every approach. It becomes clear that there is no ‘magic bullet’. For an unbiased estimation the assumptions have to be fulfilled and the data at hand must be compatible with the respective method.
Read article