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11.
By reexamining the effect of unemployment benefits on reemployment probabilities we make two contributions to the literature: first, we estimate separate effects for reemployment in the local or a distant region. Second, we address the problem of incomplete duration within a competing risks model. Our results confirm that missing data problems at first preclude any meaningful result even though we have access to daily individual data on 50 % of the male workforce in Germany. When we impose additional assumptions, we obtain evidence that the treatment effect depends on the household context, the treatment intensity and the destination state.  相似文献   
12.
This study measures and ranks the performance of countries and academic institutions based on a 40-year analysis of publications appearing in 14 leading business and management journals. The focus is on the evolution of Asia-Pacific institutions in international business research output during this period. In addition, an examination is performed to identify factors associated with Asia-Pacific institutions that have achieved the highest rankings. This research shows that the Journal of International Business Studies and the Journal of World Business were central in spreading international business research, as well as in supporting research by authors from the Asia-Pacific region. Further, schools such as Harvard, Wharton, and University of South Carolina have maintained the highest ranks in research output throughout the 40-year period, but recent years have witnessed the emergence of the Chinese University of Hong Kong and University of Hong Kong, among others, in those top ranks.  相似文献   
13.
This paper tests empirically whether the effect of idiosyncratic income shocks on aggregate consumption depends on institutional features of national labour markets. The results show that, in a sample of 15 OECD countries, institutional heterogeneity is a significant determinant of the response of household consumption to country‐specific income shocks. This is consistent with the idea that institutionally provided social insurance may help increase income stability when people differ in their ability to access financial markets and smooth consumption fluctuations.  相似文献   
14.
We develop a structural risk‐neutral model for energy market modifying along several directions the approach introduced in Aïd et al. In particular, a scarcity function is introduced to allow important deviations of the spot price from the marginal fuel price, producing price spikes. We focus on pricing and hedging electricity derivatives. The hedging instruments are forward contracts on fuels and electricity. The presence of production capacities and electricity demand makes such a market incomplete. We follow a local risk minimization approach to price and hedge energy derivatives. Despite the richness of information included in the spot model, we obtain closed‐form formulae for futures prices and semiexplicit formulae for spread options and European options on electricity forward contracts. An analysis of the electricity price risk premium is provided showing the contribution of demand and capacity to the futures prices. We show that when far from delivery, electricity futures behave like a basket of futures on fuels.  相似文献   
15.
Review of Quantitative Finance and Accounting - The number 8 is considered lucky under the Chinese culture. This paper tries to examine whether investors hold such superstitious belief in the Hong...  相似文献   
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17.
China's exports to Africa have upgraded the value chain China's exports to Africa have undergone a structural change.In 2000,Chinese exports to Africa were almost evenly distributed in textile and garments(accounting for 28%of the country's total exports to Africa),machinery and transport equipment(27%),and other manufactured goods(26%).Since then,the structure of Chinas export  相似文献   
18.
防御性现实主义:进攻性现实主义时代的悲剧   总被引:1,自引:0,他引:1  
作者旨在回答一个重要的问题:防御性现实主义在进攻性现实主义时代的命运如何?这个问题可以分解为两个小问题:进攻性现实主义时代下的防御性现实主义国家面临哪些生存压力?这些生存压力对防御性现实主义国家会造成哪些影响?作者认为,在进攻性现实主义时代,防御性现实主义国家面临五种生存压力:防御性现实主义国家是进攻性现实主义国家进攻的诱因;防御性现实主义国家经常遭遇进攻性现实主义国家的攻击;防御性现实主义国家被进攻性现实主义国家包围;防御性现实主义国家几乎无法和进攻性现实主义国家合作;防御性现实主义国家的军力通常在整体上或在关键指标上落后于进攻性现实主义国家。在这些生存压力之下,防御性现实主义国家的生存质量堪忧,在重要的物质利益和国家的自主性两项指标上的表现难如人意。作者采取了案例分析的方法,以中国宋朝和波兰为例,论证了进攻性现实主义时代的防御性现实主义困境。  相似文献   
19.
本文研究了用于开关电容(SC)滤波器的离散积分器,所推荐的积分器是由无耗离散积分器(LDI)和双线性离散积分器的最佳线性结合而成,因此,称之为组合离散积分器(CDI)。由于这个积分器使正常转折频率增加一倍,并使高频离散积分器误差减少到最低限度,所以它对高频应用是理想的。文中给出了组合离散积分器的几种SC实现,并且还给出了以组合离散积分器为基础,模拟一般一阶和二阶的模拟滤波器单元的SC电路。  相似文献   
20.
This paper analyzes the demand of French farmers for pesticides by disaggregating among the three main categories of pesticides. We estimate the demand elasticities of herbicides, insecticides, and fungicides with respect to pesticide expenditure, and also consider crop differentiation. We retain a Linear Approximated Almost Ideal Demand System specification. A Full‐Information Maximum Likelihood estimation procedure is used to deal with corner solution problems and censored data. The estimation is based on two cross‐sections covering pesticide use of three major crops cultivated in France in 2001 and 2006. Our results show that farmers' response to price variation is very low, especially for 2001. Furthermore, elasticities of pesticide expenditure are significantly different across categories: the highest levels are obtained for fungicides and the lowest ones for insecticides. Finally, we find higher own‐price elasticities for herbicides and fungicides than for insecticides, which are less frequently used.  相似文献   
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