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41.
42.
Lars Carlsson 《Ecological Economics》2002,40(3):457
43.
Volume Contents
Contents Volume 22, 2002 相似文献44.
A buyer’s technical knowledge may increase the efficiency of its supplier. Suppliers, however, frequently maintain relationships
with additional buyers. Knowledge disclosure then bears the risk of benefiting one’s own rival due to opportunistic knowledge
transmission through the common supplier. We show that in one-shot relationships no knowledge disclosure takes place because
the supplier has an incentive to transmit and, anticipating that, buyers refuse to disclose any of their knowledge. In repeated
relationships knowledge disclosure is stabilized by larger technological proximity between buyers and suppliers and destabilized
by the absolute value of the knowledge.
相似文献
45.
The partial correlation is a commonly used measure for assessing the bivariate correlation of two quantitative variables after eliminating the influence of one or more other variables. The partial correlation is generally interpreted as the correlation that would result if the variables to be eliminated were fixed (not allowed to vary and influence the other variables), which is referred to in the statistical literature as conditional correlation. The present paper demonstrates, by means of theoretical derivations and practical examples, that when the assumption of multivariate normality is violated (e.g., as a result of nonlinear relationships among the variables investigated) the usual interpretation of the partial correlation coefficient will be basically incorrect. In extreme cases the value of the partial correlation coefficient may be strongly positive, close to 1, whereas the conditional correlation may have a large negative value. To solve this problem the paper suggests to partial out a certain function (in most cases the square) of the variables whose effects are to be eliminated if nonlinear relationships are likely to occur. 相似文献
46.
This study focuses on the labour market performance among second‐generation immigrants in Sweden. One motivation behind the analysis is that it gives insight into the long‐term consequences of immigration. Labour market performance relates the probability of having a job, referred to here as a threshold effect and to the differences in income from work, given that a person is in the market and is referred to as an income from work effect. We have shown that a clear threshold effect of being a second‐generation immigrant exists and that different groups of second‐generation immigrants perform differently in the Swedish labour market. 相似文献
47.
Trond M.Andersen Lars Thuestad Tom A.Thorstensen 《设备管理与维修》2008,(2):62-63
介绍Statoil公司提出的机会维修概念和它对生产所起的重要作用,举例说明机会维修的可行性,并对机会维修进行优化使它更好地为生产服务. 相似文献
48.
49.
Since 1994, unemployed workers in the Danish labour market have participated in active labour market programmes on a large scale. This paper contributes with an assessment of costs and benefits of these programmes. Long-term treatment effects are estimated on a very detailed administrative dataset by propensity score matching. For the years 1995 – 2005 it is found that private job training programmes have substantial positive employment and earnings effects, but also public job training ends up with positive earnings effects. Classroom training does not significantly improve employment or earnings prospects in the long run. When the cost side is taken into account, private and public job training still come out with surplusses, while classroom training leads to a deficit. 相似文献
50.
Asset pricing with loss aversion 总被引:1,自引:0,他引:1
The use of standard preferences for asset pricing has not been very successful in matching asset price characteristics, such as the risk-free interest rate, equity premium and the Sharpe ratio, to time series data. Behavioral finance has recently proposed more realistic preferences such as those with loss aversion. Research is starting to explore the implications of behaviorally founded preferences for asset price characteristics. Encouraged by some studies of Benartzi and Thaler [1995. Myopic loss aversion and the equity premium puzzle. The Quarterly Journal of Economics 110 (1), 73–92] and Barberis et al. [2001. Prospect theory and asset prices. Quarterly Journal of Economics CXVI (1), 1–53] we study asset pricing with loss aversion in a production economy. Here, we employ a stochastic growth model and use a stochastic version of a dynamic programming method with an adaptive grid scheme to compute the above mentioned asset price characteristics of a model with loss aversion in preferences. As our results show using loss aversion we get considerably better results than one usually obtains from pure consumption-based asset pricing models including the habit formation variant. 相似文献