中国收入分配结构演变对国内旅游消费的影响

国内旅游是成熟旅游业的主体，其发展与经济水平高度相关。本文从居民收入及其分配结构演变角度，对20年来中国国内旅游消费及其特征进行理论性分析。     

基于分形理论的区域旅游中心地规模与空间结构研究——以湖南省为例

旅游中心地对区域旅游的发展起着十分重要的作用,其规模和空间结构是否合理,将在很大程度上影响区域旅游发展的效益和质量.文章首次尝试运用分形理论分析区域旅游中心地的规模和空间结构,并以湖南省为例进行了实证研究.研究结果表明:采用分形理论来研究区域旅游中心地规模和空间结构是可行的;分形理论和方法是优化区域旅游中心地规模和空间结构,促进区域旅游发展的有效工具.     

质量成本核算中的几个问题

本文主要对网络统计的特点以及发展前景进行了分析 ,并构想在网络环境下如何开展统计工作。     

股权融资与企业治理机制研究

股权融资不仅是现代企业融资的重要手段之一,而且还是完善企业治理机制的重要途径。在我国,股权融资还有助于政企分开,但由于产权改革不到位,形成了独特的股权结构,导致了严重的内部人控制问题和治理结构运作低效;同时,也使股市成了单纯融资的机器而缺乏资源配置功能,所有这些都与我国股权结构异化有很大关系。本文通过对股权现状及其对治理结构影响的分析,提出了股权结构的优化以及治理机制完善构建的设想,以期探讨我国股份企业发展的思路。     

电动汽车所用电控系统性能介绍及设计

本文简要介绍电动汽车所用电机控制器的种类、结构、工作原理、特点和设计。     

New perspectives on farm size and productivity

The farm size and productivity debate has been limited by the focus on land or labor productivity, generally showing respective productivity advantages to smaller or larger sized farms. Our purpose is to provide new perspectives on the debate by bringing together evidence from a set of novel case studies in both rich and poor countries. Common to them are the adoption of total factor productivity (TFP) as the comparative performance measure, and the reliance on panels of farm micro data. The present article presents a synthesis of findings from five case studies in (i) Malawi, Tanzania, and Uganda; (ii) Bangladesh; (iii) Brazil; (iv) Australia; and (v) the United States. The preponderance of evidence from these studies suggests that there is no single economically optimal agrarian structure; rather, it appears to evolve with the stage of economic development. Certain farm sizes face relative productivity advantages, such as small farms in Africa. But with economic and market growth, that smallholder advantage will likely attenuate, moving toward constant and eventually increasing returns to size. Yet, importantly, small farms may be quite dynamic, and need not be a drag on agricultural growth until perhaps well into the development process.     

Local network externalities and market segmentation

This paper models interaction between groups of agents by means of a graph where each node represents a group of agents and an arc represents bilateral interaction. It departs from the standard Katz–Shapiro framework by assuming that network benefits are restricted only amongst groups of linked agents. It shows that even if rival firms engage in Bertrand competition, this form of network externalities permits strong market segmentation in which firms divide up the market and earn positive profits. The analysis also shows that some graphs or network structures do not permit such segmentation, while for others, there are easy to interpret conditions under which market segmentation obtains in equilibrium.     

统筹城乡发展:理论演进与财税政策

新中国成立以来,非均衡发展的战略使我国形成了以二元户籍制度为核心的城乡分割的二元经济、社会体制。本文对二元经济理论的演进路径进行了梳理,提出我国财税政策要从保障城乡公民基本权利、促进劳动力自由流动、提高农业劳动生产率、加快农村专业化水平与分工等方面支持统筹城乡发展,并对财税体制进行相应变革。