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71.
In 2001 and 2002, the Korean government rewarded around $3 to civilians who photograph and report violations of traffic rules. This so-called ‘car-parazzi system’ was such a success with well over 4 million cases reported until its abolition. Our empirical results found that the car-parazzi system was much effective in significantly reducing the death tolls by traffic accidents. 相似文献
72.
Abstract. We develop a model with one innovating northern firm and heterogeneous southern firms that compete in a final product market. We assume southern firms differ in their ability to adapt technology and study southern incentives to protect intellectual property rights. We find that, in a non-cooperative equilibrium, governments resist IPR protection, but collectively southern countries benefit from some protection. We show that, in general, countries with more efficient firms prefer higher collective IPR protection than those with less efficient firms. Given the aggregate level of IPR protection, it is more efficient if the more efficient countries have weaker IPR protection. 相似文献
73.
This study empirically examines the sources of fluctuations in hours worked in Canada, Germany, Japan and the U.S. It is particularly motivated by Galí’s (1999) VAR study, which demonstrates that a positive technology shock reduces hours worked, at least in the short run. However, in the present study, a technology shock is identified without recourse to Galí’s long-run restriction, which has been subject to active controversy. Furthermore, this study uncovers other important sources of fluctuations in hours worked to reflect the concern, raised by numerous studies, that technology shocks leave most variations in hours worked unexplained. Specifically, there are six shocks underlying our model, and they are identified using a set of sign restrictions. The empirical results confirm that in all four countries, a positive technology shock significantly reduces hours worked. This technology shock, along with labor supply and demand shocks, accounts for most of the short-term variations in hours worked. As the forecasting horizon increases, technology and demand shocks become less important, whereas labor supply shocks contribute to explaining the bulk of long-run variations in hours worked. Finally, the empirical relevance of Galí’s long-run identification restriction is tested and the results are related to those obtained using the sign restriction model. 相似文献
74.
Specialization,diversification, and productivity: a panel data analysis of rice farms in Korea 总被引:1,自引:0,他引:1
Kwansoo Kim Jean‐Paul Chavas Bradford Barham Jeremy Foltz 《Agricultural Economics》2012,43(6):687-700
This article examines the microeconomics of productivity associated with specialization/diversification in production activities, with an application to Korean rice farms. Korean rice farms tend to be very small and highly specialized. Our analysis examines the productivity effects associated with both farm size and farm specialization/diversification in Korean agriculture. Relying on farm‐level panel data, the analysis studies farm productivity in a multi‐input multi‐output context, accounting not only for changes in inputs and technical change in rice production, but also for the role of diversification in the production of other crops in current and previous periods. We find positive but small productivity gains from farm diversification. These gains come mostly from complementarity effects across farm outputs, with minimal effect of scale economies. The positive complementarity effects work against nonconvexity effects, which provide strong productivity incentives for rice farms to specialize. 相似文献
75.
H. Youn Kim 《Journal of Macroeconomics》1990,12(4)
This paper examines the validity of the conventional specification of money demand with particular reference to the issue of relative prices. It is shown that the conventional money demand function is based on the assumption of weak separability of money from commodities, which forms the basis for the absence of relative prices in money demand. Empirical and presumptive evidence suggests that weak separability is not tenable, implying that relative prices are important in money demand. The inclusion of commodity prices in money demand significantly affects the interest and income elasticity estimates. Finally, it is noted that the aggregate consumption function excluding commodity prices also has no theoretical and empirical base. 相似文献
76.
This paper analyses the relation between money and inflation in Germany in a cost-push/demand-pull model of an open small economy by means of cointegration methods. The full-information-maximum-likelihood method of Johansen as well as structural methods are applied to datasubsets and the full data set. The focus of the paper is on tests for overidentifying restrictions and for weak and strong exogeneity within these data sets. The result of the paper is that the money stock, the price level and gross national product are endogenous whereas the interest rate and the real import price are both weakly and strongly exogenous. By means of the price cointegration relation we illustrate how monetary targeting should react to imported inflation. 相似文献
77.
Summary Economic design of one-sided screening procedures for improving outgoing product quality based on a screening variable is
considered for the case with all parameters unknown. It is assumed that the performance and screening variables are jointly
normally distributed and that costs are incurred by screening inspection, acceptance of an imperfect item, and disposition
of a rejected one. A method for finding optimal cutoff value based on the predictive distribution is presented. 相似文献
78.
Jeong-Yoo Kim 《Journal of Economics》2011,104(3):265-280
The doctrine regarding unforeseeable damages in a contract was established in the well known case of Hadley vs. Baxendale. According to the judgement, a plaintiff cannot be compensated for unforeseeable damages in an incomplete contract unless
he informs the defendant of the possible unforeseen contingency beforehand. In this paper, I extend the argument to the tort
case in which it is hardly possible to communicate between a plaintiff and a defendant before an accident occurs. In the case
of the sequential bilateral accident in which the victim’s care level is observable to the injurer, the victim’s care level
can be a signal of the unforeseen contingency. I mainly discuss the implementability of the social optimum by the contributory
negligence with dual standard of care enabling the communication between the parties. 相似文献
79.
Quality & Quantity - Non-profit organizations (NPOs) have been recognized as critical performers not only in the enhancement of social values and civic integration but also in the construction... 相似文献
80.
In this paper, we investigated the economic effects of zoning regulations on the retail industry in Korea. We estimated the changes in the number of sales for retail stores using a panel regression analysis for stores in traditional markets. This analysis was conducted to examine the benefit of zoning regulations on retail stores. Our results show that the zoning regulations (called Traditional Commercial Activity Protection Zones) have contributed to an improvement in the actual business performance of small independent retailers. We found that the amount of sales for each store clearly increased on average in the areas designated as Traditional Commercial Activity Protection Zones where there was no market entry of mega supermarket chains (called SSM in Korea). We also present evidence that the effects of this policy differ geographically: the effects were stronger for small and medium cities than for large metropolitan cities. These results suggest that zoning regulations enacted by the government to protect traditional markets and small retailers should also consider regional differences when assessing policy effectiveness. 相似文献