我国财政支农的资金效益问题研究

本文通过一系列数据对我国财政支农资金的效益进行分析得出农村居民纯收入的缓慢增长与财政支农资金的快速增加形成了明显反差,我国财政支农资金使用效益不高。针对这样的现状,分析了产生财政支农资金效益不足的原因,并提出相应措施来提高财政支农资金的使用效益。     

A generalization of Condorcet’s Jury Theorem to weighted voting games with many small voters

We extend Condorcet’s Jury Theorem (Essai sur l’application de l’analyse à la probabilité des décisions rendues à la pluralité des voix. De l’imprimerie royale, 1785) to weighted voting games with voters of two kinds: a fixed (possibly empty) set of ‘major’ voters with fixed weights, and an ever-increasing number of ‘minor’ voters, whose total weight is also fixed, but where each individual’s weight becomes negligible. As our main result, we obtain the limiting probability that the jury will arrive at the correct decision as a function of the competence of the few major players. As in Condorcet’s result the quota q = 1/2 is found to play a prominent role. I wish to thank Maurice Koster, Moshé Machover, Guillermo Owen and two anonymous referees for helpful comments.     

改革开放以来广州经济增长因素分析

本文从实证角度建立计量模型,利用主成分分析方法和最小二乘回归的方法,对广州改革开放30多年以来的经济增长因素进行了具体分析,研究表明改革开放30多年来,广州经济增长的促进因素主要是劳动力数量的增长,经济制度的变革,产业结构的升级,以及人力资本增长的作用,物质资本不是促进广州经济增长的主要因素。     

Background Risk and the Performance of Insurance Markets under Adverse Selection

Background risk can influence the performance of insurance markets that must deal with adverse selection when applicants are risk vulnerable, since they are more averse to bearing the insurable risk as a result of their exposures to background risk. We show that background risk always results in a lower deductible for the incentive constrained contract, and that a broader range of markets attains the stable sequential equilibrium cross-subsidized pair of separating contracts. We conclude that background risk always improves the performance of markets for coverage against (insurable) foreground risks that must deal with adverse selection. We also find, however, that these improvements are never sufficient to offset the cost to insureds of bearing the background risk.     

大连普兰店北部乡镇与日本同纬度地区资源开发的比较分析

文章基于文献研究以及大连市普兰店北部乡镇的农业发展现状，依照科学发展观的原理，分析了同纬度地区日本的农业资源开发模式，就我国目前的自然条件、农业生产状况、开发经营模式、开发利用效益、农业发展组织模式、化肥施用水平等方面与日本进行比较，为北部乡镇的资源开发和经济发展提供有益的启示。     

德国商业银行内部控制对我国银行业的启示

本文从对德国商业银行内部控制成就进行考察人手,借鉴西方商业银行长期经营实践所积累的丰富的内控管理经验,就我国商业银行内部控制的完善提出了自己的观点.     

论农村金融需求与邮政储蓄小额信贷

文章分析了我国农村的金融信贷需求以及邮政储蓄银行在农村开展小额信贷业务的优势，探讨了邮政储蓄发展小额信贷的策略。     

Urban Theory in the Age of Pluralism and Complexities: Modern or Postmodern? Comment on Leontidou

Hardly, Jane and Al Rainnie 1996 Restructuring Krakow. Desperately seeking capitalism Butler, Tim and Michael Rustin 1996 Rising in the East: the regeneration of East London Harvie, Christopher 1994 The rise of regional Europe Jones, Barry and Michael Keating (eds.) 1995 The European Union and the regions Koopmans, Ruud 1995 Democracy from below: new social movements and the political system in West Germany Duyvendak, Jan Willem 1995 The power of politics: new social movements in France     

Pricing continuously sampled Asian options with perturbation method

This article explores the price of continuously sampled Asian options. For geometric Asian options, we present pricing formulas for both backward‐starting and forward‐starting cases. For arithmetic Asian options, we demonstrate that the governing partial differential equation (PDE) cannot be transformed into a heat equation with constant coefficients; therefore, these options do not have a closed‐form solution of the Black–Scholes type, that is, the solution is not given in terms of the cumulative normal distribution function. We then solve the PDE with a perturbation method and obtain an analytical solution in a series form. Numerical results show that as compared with Zhang's ( 2001 ) highly accurate numerical results, the series converges very quickly and gives a good approximate value that is more accurate than any other approximate method in the literature, at least for the options tested in this article. Graphical results determine that the solution converges globally very quickly especially near the origin, which is the area in which most of the traded Asian options fall. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:535–560, 2003