Estimating the Impact of Transgenic Bt Cotton on West and Central Africa: A General Equilibrium Approach

West and Central Africa (WCA)’s cotton sector is experiencing rising production costs and lower yields, reversing decades of growth. Declining input use, soil fertility and inefficient chemical pest controls are contributing factors. We evaluate the potential impact of Bt cotton on WCA using a multiregion general equilibrium model and multicountry estimates of Bt-induced productivity. We find that Bt cotton raises growers’ returns, land value and welfare. Released labor from cotton is shifted to food crops hence reducing labor shortage constraints. Overall, results indicate that potential gross benefits from Bt cotton are substantial for WCA cotton sector, and that the economic costs of nonadoption are equally significant.     

清除计算机引导型病毒的通用方法

本文通过 DOS 引导过程分析,结合计算机引导型病毒的特点,给出了一般的引导型病毒的清除方法及实用程序。     

现代服务业：上海经济增长的新动力

本文通过经济增长弹性与就业弹性两个指标,对上海"十一五"规划中提出将优先发展的现代服务业及其主要子行业在上海经济增长中的作用进行了研究。分析认为目前上海第二产业与第三产业对经济的拉动力相当。而现代服务业的拉动力大于传统服务业。近年来,现代服务业的就业弹性均值较大,同时弹性的波动变化很大,这是上海GDP就业弹性近几年波动增大的主要原因。同时,通过对现代服务业中主要子行业的分析,发现现代服务业子行业间就业弹性的变动有着高度的正相关,这将增加现代服务业就业弹性波动对于上海GDP就业弹性波动的影响。     

A new continuous distribution and two new families of distributions based on the exponential

Recent work on social status led to derivation of a new continuous distribution based on the exponential. The new variate, termed the ring(2)-exponential, in turn leads to derivation of two closely related new families of continuous distributions, the mirror-exponential and the ring-exponential. Both the standard exponential and the ring(2)-exponential are special cases of both the new families. In this paper, we first focus on the ring(2)-exponential, describing its derivation and examining its properties, and next introduce the two new families, describing their derivation and initiating exploration of their properties. The mirror-exponential arises naturally in the study of status; the ring-exponential arises from the mathematical structure of the ring(2)-exponential. Both have the potential for broad application in diverse contexts across science and engineering. Within sociobehavioral contexts, the new mirror-exponential may have application to the problem of approximating the form and inequality of the wage distribution.     

Productivity and Welfare

Technical change is generally characterized by a rate and biases, both evaluated for given producer prices. This paper examines the potential discrepancy between this rate and the corresponding rate of consumer welfare change as measured by Allais distributable surplus. We postulate a general equilibrium context with various market failures (taxes, quotas, imperfect competition, and “poorly priced” commodities), and use comparative statics to express the rate of welfare change in terms of the rate and biases of the technical change. An elementary simulation model of a taxed economy suggests that the rate of welfare change may differ from the rate of technical change by as much as 50% under plausible circumstances.     

我国企业财务管理目标的现实选择

随着会计国际化进程的进一步发展，传统的财务管理已远不能适应现代企业管理的需要。企业要想在激烈的市场竞争中得以生存和发展，就必须适应现代企业制度的要求，进一步加强企业财务管理，而其首要问题是必须树立现代企业财务管理的总目标。     

瓦尔拉斯新古典一般均衡体系质疑

通过对瓦尔拉斯一般均衡体系由简单的生产交换经济到扩大的包含资本形成方程在内的经济体系的分析,指出一直标榜为现代主流新古典理论支柱之一的瓦尔拉斯一般均衡体系内部存在着一系列逻辑矛盾,从而表明它描述的只是一种差别利息率下的实物经济一般均衡,而并不是现实资本主义经济关系下为获取统一利润率竞争的货币经济均衡。     

国际贸易实务课程的教改实践分析及教学整体方案的研究

国际贸易实务课程是经贸类专业的一门专业基础课.在教学实践中对教学内容、实践教学、教学方法的探索,为确定这门课程的整体教学方案积累了经验.从培养综合素质高、创新能力强的人才出发,课程教学的整体方案应是课堂教学、操作实习、教材编写、案例软件编制、启发式教学、考试等诸多环节与内容的较好融合.     

广东温氏集团企业“和”文化精神的制度化研究

中国传统文化及其影响下的家族制企业文化基于原始血缘伦理关系,具有“和而统”的特点。要适应现代市场竞争,就必须在普适法则的基础上包容多样性,并保持一种有张力的平衡,实现真正的“和而不同”。这需要制度制衡机制,将中国传统文化中的“和”文化精神制度化,创建竞争制衡的“和而不同”企业文化。广东温氏集团的成功就在于它实现了这种文化整合与创新,使传统家族制企业在普遍秩序中开拓出广阔的发展空间。     

Optimal Environmental Policy Differentials in Open Economies under Emissions Constraints

Is there a case for preferential treatment of the exposed sector in an economy when compliance to an aggregate emissions constraint induced by an international environmental agreement is mandatory? This question is being debated in many countries in the context of the implementation of the Kyoto Protocol. We address the issue in a general equilibrium framework and theoretically cover several market structures, including perfect competition, the large country case and oligopoly. We identify the conditions under which preferential treatment of the exposed sector is not warranted from the point of view of maximizing social welfare. In addition, we demonstrate that in the case of oligopoly, instituting a more stringent environmental policy on the exposed sector might be profit-enhancing for this sector. This finding lends theoretical support to a specific interpretation of the Porter hypothesis.