物流企业实现规模效益的途径探讨

针对当前物流企业规模较小、效益较差的现状，本文提出通过扩大企业规模的措施，以实现规模经济，提高企业效益。     

Monotonicity of Rank Statistics in some Non–parametric: Testing Problems

For some non–parametric testing problems (one–sided two–sample problem, k –sample trend problem, testing independence against positive dependence) a partial ordering, denoted by ≥, over the alternatives is defined. This partial ordering expresses the strength of the deviation from the null–hypothesis. All familiar rank tests turn out to become more powerful under "increasing" alternatives; that is, all familiar rank statistics preserve the ordering stochastically in samples whenever it is present between underlying distributions. As a tool, the sample equivalence of ≥ is introduced as a partial ordering over pairs of permutations. Functions, defined on pairs of permutations, which preserve this ordering are studied.     

Some properties of the length of the shortest half

This paper discusses some properties of the length of the shortest half proposed by Rousseeuw and Leroy (1988) as a robust scale estimator.     

GAME THEORETIC MODELS OF MIXED OLIGOPOLY

Abstract. In this paper we review various models that have been proposed for the study of mixed oligopoly, that is markets in which private and public firm compete on equal basis using only market instruments.     

Distinguishing external from internal scale effects: The case of public infrastructure

The recent applied production theory literature focusing on the economic performance of firms has increasingly recognized the importance of scale effects on costs and therefore efficiency. These scale effects may include short run returns due to fixity of privately demanded inputs (i.e., capital, long run internal returns to scale, and external factors affecting costs. Since these different types of scale effects can be thought of as shifts in and movements along cost curves, the different cost effects of such factors can be identified in a framework which explicitly takes them into account in the definition ofscale.In this article we formalize such a framework, and then use it to measure short run, long run (internal) and external scale effects from fixity of private capital, nonconstant returns to scale and public infrastructure. We then use these measures to identify the impacts of these different scale factors on productivity growth. The focus on public infrastructure as an important external scale factor is motivated by the current theoretical and policy interest in this issue; we show how a structural production theory model provides a rich basis for the analysis of the cost effects of infrastructure investment.     

集群中小企业发展的关键

在激烈的市场竞争中，单个中小企业在经营中困难重重。集群这种企业间组织新形式，可以发挥我国众多中小企业的优势，在不牺牲经营柔性的前提下，实现规模经济，降低经营成本。     

乡镇经济和环境可持续发展的矛盾与对策

目前江苏乡镇企业造成的环境污染日益严重。本文从产业结构、行业结构、技术结构、环境管理、环保投入水平等九个方面分析了乡镇工业严峻形势形成的根源。指出，迫切需要把乡镇企业环境管理作为全省的一个环保战略重点，并采取有效措施，保护乡镇生态环境。     

Limit-pricing as Bertrand equilibrium

Summary. We consider a Bertrand duopoly model with increasing returns to scale where one of the firms have a cost advantage and prices vary over a grid. We find that typically more than one equilibria exist. However, there are only two perfect equilibria. Moreover, as the size of the grid becomes small, both these equilibria converge to the limit-pricing outcome. Received: February 25, 2000; revised version: January 9, 2001     

"剑桥资本争论"与新古典边际分配论质疑

目前位居现代主流经济学地位的新古典边际生产力分配理论,由于完全排除了特定经济制度和资本 主义经济关系的研究框架,以至在与新剑桥学派发起的"剑桥资本争论"中不断以逻辑悖论形式公诸于众;从 而表明,真正的收入分配理论须联系到现实的资本主义经济关系这一竞争经济的研究框架。     

嘉兴市产业结构与地区经济增长

该文通过实证研究，分析和度量嘉兴市不同产业对地区经济增长的作用，探讨各产业是以何种方式影响经济增长的，旨在为今后嘉兴市制定产业政策提供决策依据。