A Professor Like Me: The Influence of Instructor Gender on College Achievement
Florian Hoffmann, Philip Oreopoulos
Journal of Human Resources,
No. 2,
2009
Abstract
Many wonder whether teacher gender plays an important role in higher education by influencing student achievement and subject interest. The data used in this paper help identify average effects from male and female college students assigned to male or female teachers. We find instructor gender plays only a minor role in determining college student achievement. Nevertheless, the small effects provide evidence that gender role models matter to some college students. A same-sex instructor increases average grade performance by at most 5 percent of its standard deviation and decreases the likelihood of dropping a class by 1.2 percentage points.
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Temporary Work in Germany and Europe
C. Boost, Herbert S. Buscher
Wirtschaft im Wandel,
No. 2,
2009
Abstract
Temporary work is one of the fastest growing branches in Germany. This development in a sustained manner influences the whole German labour market. The special organization of this sort of employment for various reasons makes it very attractive to employers and employees as well. Nevertheless, the reputation of this branch is rather poor. Temporary work is characterized as precarious and as an unsafe type of employment. Compared to regular employment, temporary work is often considered as a bridging function into regular employment.
Based on the official statistics of temporary work released by the Federal Work Agency as well as on data from the German Socio-economic Panel (SOEP) for 2007, the paper presents the current situation and important characteristics of temporary work and performs an international comparison.
The number of employees in temporary work agencies is still a marginal share of total employment. The future development of this branch depends on different factors leading to possible contradicting directions. One important aspect influencing temporary work in the future is the degree of flexibility of regular employment opportunities on the one hand and the possibilities of temporary work agencies to adapt to future working conditions on the other hand.
Looking at other European countries, one can see that some degree of saturation in different temporary job opportunities has already been achieved, whereas new perspectives are opened for other jobs, either newly created or transformed from regular employment schemes.
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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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A Novel Approach to Incubator Evaluations: The PROMETHEE Outranking Procedures
Michael Schwartz, Maximilian Göthner
IWH Discussion Papers,
No. 1,
2009
Abstract
Considerable public resources are devoted to the establishment and operation of business incubators (BIs), which are seen as catalysts for the promotion of entrepreneurship, innovation activities and regional development. Despite the vast amount of research that has focused on the outcomes or effectiveness of incubator initiatives and how to measure incubator performance, there is still little understanding of how to determine incubators that are more effective than others. Based on data from 410 graduate firms, this paper applies the multi-criteria outranking technique PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluation) and compares the long-term effectiveness of five technology-oriented BIs in Germany. This is the first time that outranking procedures are used in incubator evaluations. In particular, we investigate whether PROMETHEE is a well-suited methodological approach for the evaluation and comparisons in the specific context of business incubation.
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Forecasting Currency Crises: Which Methods signaled the South African Crisis of June 2006?
Tobias Knedlik, Rolf Scheufele
South African Journal of Economics,
2008
Abstract
In this paper we test the ability of three of the most popular methods to forecast South African currency crises with a special emphasis on their out-of-sample performance. We choose the latest crisis of June 2006 to conduct an out-of-sample experiment. The results show that the signals approach was not able to forecast the out-of-sample crisis correctly; the probit approach was able
to predict the crisis but only with models, that were based on raw data. The Markov-regime- switching approach predicts the out-of-sample crisis well. However, the results are not straightforward. In-sample, the probit models performed remarkably well and were also able to detect, at least to some extent, out-of-sample currency crises before their occurrence. The recommendation is to not restrict the forecasting to only one approach.
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Economic Effects of the Halle Institute for Economic Research
Ulrich Blum
Wirtschaft im Wandel,
No. 10,
2008
Abstract
The most important approach to assess the scholarly performance of an institute is to evaluate its academic output. Economic research institutes such as the Halle Institute for Economic Research (IWH) furthermore are targeted at providing policy advice to public authorities. This adds an additional criterion, the ability to impact policy discussions in Germany and beyond.
A rarely discussed issue is the effect of an institute on the local economy. The IWH is located in a region of East Germany that is still catching up economically. Transformation problems are still very visible. In such an economic environment, the expenditures of an institute play an important role in stabilizing local demand. The analysis shows, by using input-output-methods, that the most important factor for the local economy is the demand stemming from wages earned by the employees of the institute. Especially the local area, where most of the staff lives, heavily benefits from this effect. Expenditures of about 4.6 million Euros which include the salaries of the staff of about 70 persons generates sufficient demand in the area to guarantee employment for another 35 persons. In addition, as crowding out of activities by additional demand is presently not an issue in East Germany, the taxes generated account for a considerable part of the budget.
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Spatially Concentrated Industries as Innovation Driver? – Empirical Evidence from East Germany
Christoph Hornych, Michael Schwartz
Wirtschaft im Wandel,
No. 9,
2008
Abstract
A positive relation between the spatial concentration of sectors and their capacity of innovation is frequently assumed in regional science as well as in regional development policy. Therefore, with the support of sectoral agglomeration, effects on the regional technological performance are expected. However, previous empirical work is inconsistent in supporting this interdependency.
This study aims to examine the effects of sectoral agglomeration on innovative activities in East-German regions. For this purpose, spatially concentrated industries are identified and included in the estimation of regional ‘knowledge-production-functions’. Contrary to expectations, the spatial concentration seems to inhibit the amount of patent-activities of the sector in the specific region. In contrast, positive effects are generated from research facilities. Moreover, we find evidence for intersectoral spillovers.
The results show that for innovative activities, urbanization effects have a higher relevance as localization effects. So far, spatially concentrated industries are not an innovation driver in East Germany.
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Industry Specialization, Diversity and the Efficiency of Regional Innovation Systems
Michael Fritsch, Viktor Slavtchev
Determinants of Innovative Behaviour,
2008
Abstract
Innovation processes are characterized by a pronounced division of labor between actors. Two types of externality may arise from such interactions. On the one hand, a close location of actors affiliated to the same industry may stimulate innovation (MAR externalities). On the other hand, new ideas may be born by the exchange of heterogeneous and complementary knowledge between actors, which belong to different industries (Jacobs’ externalities). We test the impact of both MAR as well as Jacobs’ externalities on innovative performance at the regional level. The results suggest an inverted u-shaped relationship between regional specialization in certain industries and innovative performance. Further key determinants of the regional innovative performance are private sector R&D and university-industry collaboration.
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Long-term Effects of Business Incubators: What Happens to Incubated Firms after they Have Graduated from the BIs?
Michael Schwartz
Wirtschaft im Wandel,
No. 8,
2008
Abstract
Many cities and municipalities devote considerable public resources to the establishment and operation of business incubators (BIs) to promote the survivability and the positive development of newly founded firms. In the context of incubator evaluations, survival is one of the most important performance indicators, and survival rates of incubated firms are frequently communicated to the public by local authorities to demonstrate the success of those policy initiatives. However, in most cases, these data refers to the initial incubation period. Little is known about survival or exit dynamics of incubated firms after they have graduated from the BIs. On the basis of a comprehensive research project concerned with the development of graduate firms from incubators in Dresden, Halle (Saale), Jena, Neubrandenburg and Rostock, this article not only investigates how many firms survive after leaving the incubator facilities, but also investigates if graduation causes an immediate negative effect on subsequent survivability. The results show that about one third of all graduate firms fail after leaving the incubator. Furthermore, it can be found that graduate firms from the BIs in Halle (Saale) and Neubrandenburg face a relatively high risk of business closure especially in the first years after the completion of the incubation period.
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Performance of European countries in biotechnology - How does Europe compare to the USA?
Thomas Reiss, Iciar Dominguez Lacasa
International Journal of Biotechnology Vol. 10 (4),
2008
Abstract
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