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21.
Using a unique proprietary data set of over 5400 realized and unrealized venture capital investments between 1980 and 2005, we examine the impact of demand-related factors, e.g. entrepreneurial activity, as well as supply-related factors, i.e. money provided by VC investors, on the return of individual VC investments. This way, we are able to shed more light on the question whether volatile VC investment returns are rather driven by fundamental changes with regard to the number of attractive investment opportunities or by the overreaction by investors. We find that rising demand for VC, i.e. an increase in entrepreneurial activity, results initially in higher returns. However, our results also indicate that overreaction on the supply side can be observed, destroying deal-level results. Overfunding, specifically overinvesting seems to be a recurring characteristic of the VC industry. In fact, contra-cyclical investment strategies yield highest deal-level returns. 相似文献
22.
Food Insecurity,Soil Degradation and Agricultural Markets in West Africa: Why Current Policy Approaches Fail 总被引:1,自引:0,他引:1
The agricultural sector in West Africa is not at present capable of meeting the growing demand for food for its population and of reversing unfavourable trends in soil degradation. We argue that integrated soil management is an essential condition for sustainable agricultural development in the many regions in West Africa where population pressure forces an intensification of land use. Such an approach combines improved soil-moisture storage measures, and the use of organic and inorganic fertilizers and soil amendments. The synergetic effects which could result from this combination are indispensable for achieving the productivity increases needed to cope with the pressure of population. Current (neo-liberal and ecological-participationist) policy approaches are unable to realize the transition towards integrated soil management technologies. The time lags involved in learning to use new technologies, in the adaptation of technologies to local circumstances, and in reaping the benefits of soil fertility investments call for (at least temporary) support of agricultural incomes. 相似文献
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This paper investigates the role of published stock recommendations in print and online media as investor sentiment in the near-term German stock market. In line with extant literature on other sentiment measures, vector autoregressions reveal that past stock returns drive today’s sentiment, but not the other way around, and that sentiment is a powerful predictor of itself. In particular, sentiment based on printed analyst recommendations follows reversals, that is, when analysts face a stock market downturn, they see a buying opportunity and become optimistic. 相似文献
25.
Bing Zhu Roland Füss Nico B. Rottke 《The Journal of Real Estate Finance and Economics》2011,42(4):542-565
This paper develops a method to capture anisotropic spatial autocorrelation in the context of the simultaneous autoregressive
model. Standard isotropic models assume that spatial correlation is a homogeneous function of distance. This assumption, however,
is oversimplified if spatial dependence changes with direction. We thus propose a local anisotropic approach based on non-linear
scale-space image processing. We illustrate the methodology by using data on single-family house transactions in Lucas County,
Ohio. The empirical results suggest that the anisotropic modeling technique can reduce both in-sample and out-of-sample forecast
errors. Moreover, it can easily be applied to other spatial econometric functional and kernel forms. 相似文献
26.
The results of a large scale research project among top public managers in The Netherlands are presented. On the basis of Likert-scaling the degree of Change Orientation is measured. Change Orientation consists of five components: commitment to values; serving the public; empowerment and shared leadership; pragmatic incremen-talism and dedication to public service. 相似文献
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António Madureira Frank den Hartog Harry Bouwman Nico Baken 《Information Economics and Policy》2013,25(4):246-256
Few doubt that Digital Information Networks (DINs) such as the Internet constitute the basis of a new technology-driven economic era. A large body of literature tries to understand and quantify the value of DINs to help policy makers justify investments in new or improved infrastructures. The prevailing methodological approach is to depict DINs as an observable production input changing the uncertainty regarding the performance of an economic system. In such context, the value of DINs is typically measured with regression techniques between the penetration rate of DINs and economic growth. This approach provides too little insight on the actual causality between DINs and economic value. We recently developed a framework that identified 13 different ways (“capabilities”) how users convert information into economic value. In this article, we show how a simple quadratic relation (Metcalfe’s law) can be used to quantify how adequate these capabilities are in converting the ability to access information into economic value. To our knowledge, this is the first time that Metcalfe’s law is empirically validated as such. 相似文献
29.
Rosy Locorotondo Nico Dewaelheyns Cynthia Van Hulle 《Journal of Business Finance & Accounting》2015,42(5-6):747-776
This paper examines whether and how bank debt is affected by foreign group affiliation. Ceteris paribus, affiliates of foreign business groups only use about half as much bank debt compared to affiliates of domestic groups. Further, the results indicate that geographical and cultural distance between parent and affiliate countries raise barriers when accessing bank financing. The bank debt usage decreases even further if affiliates and parent firms depend on different legal systems or the degree of legal enforcement in the parent firm's country is low. 相似文献
30.
Recent estimates suggest that as many as 40 million women are ‘missing’ in China. We exploit a special provision in the Chinese one‐child policy (OCP; allowing for preferential treatment of ethnic minority groups) to revisit the mystery of these missing women, and in particular to explore the contribution of China's OCP in distorting sex ratios. Our results imply that preference for boys is the main driver of the gender gap, and that the OCP is responsible for about half of it. This is true even before ultrasound technologies for prenatal gender determination were available. Not surprisingly, interaction between the OCP and ultrasound technologies has contributed to the gender gap. 相似文献