Feminist Ecological Economics and Sustainability

Synopsis New developments in feminist ecological economics and ecofeminist economics are contributing to the search for theories and policy approaches to move economies toward sustainability. This paper summarizes work by ecofeminists and feminist ecological economists which is relevant to the sustainability challenge and its implications for the discipline of economics. Both democracy and lower material throughputs are generally seen as basic principles of economic sustainability. Feminist theorists and feminist ecological economists offer many important insights into the conundrum of how to make a democratic and equity-enhancing transition to an economy based on less material throughput. These flow from feminist research on unpaid work and caring labor, provisioning, development, valuation, social reproduction, non-monetized exchange relationships, local economies, redistribution, citizenship, equity-enhancing political institutions, and labor time, as well as creative modeling approaches and activism-based theorizing.      

关于农村产业结构优化调整问题的思考--以河北省鹿泉市曲寨村为例

经过20多年的改革和发展,我国农村虽然实现了主要农产品由长期短缺到总量大体平衡,丰年有余的历史性转折。但是,当前农业效益下降,农民收入增长缓慢,严重影响农民的生产积极性,已成为影响农村发展和稳定的突出问题。这期间,有些实行以集体经济为主体的农村,由于正确地调整了产业结构,却显示出了勃勃生机,发展势头强劲。文章对这些村域经济发展的优势和我国农村经济的发展方向等问题进行了思考。     

基于共拣网络的货位优化方法

将社会网络和社区发现的思想引入物流中心仓库货位的优化。首先建立描述货物之间被共同拣选情况的自组织共拣网络;然后通过社区发现算法从共拣网络中识别那些在一次作业中可能会同时拣选的货物构成共拣品族:最后按共拣品族就近摆放的原则优化货位并将拣选频率较高的共拣品族置于距出货口较近的位置。     

上海市区街道办事处功能作用调整、完善的对策与措施

本文经调查研究,从上海市区街道办事处功能作用存在的问题出发,重新定义其功能与基本职能,提出了上海街道办事处功能作用调整对策与措施。     

Monitoring the mean and the variance of a stationary process

We deal with the problem of how deviations in the mean or the variance of a time series can be detected. Several simultaneous control charts are introduced which are based on EWMA (exponentially weighted moving average) statistics for the mean and the empirical variance. The combined X − S² EWMA chart is extended to time series. Further simultaneous charts are considered. The comparision of these schemes shows that the residual attempt must be favored if a variance change is present.     

A modified logit model for time series with an application to the pricing behaviour of manufacturing firms in Australia

The modified logit model (Amemiya and Nold, 1975) is generalised to the case where the error term is autocorrelated. The asymptotic distribution (as n →∞ and T →∞) of a feasible GLS estimator of β is derived. Tests of linear restrictions on β and the significance of ρ are presented. The results of the applied work suggest that the factors which explain the pricing behaviour of manufacturing firms, as reported in the tendency survey conducted by the Australian Chamber of Commerce and Industry and the Westpac Banking Corporation, include historical inflation rates of up to 7 quarters and capacity utilisation. First version received: March 2001/Final version received: July 2002 RID="*" ID="*"  The first draft of this paper was written while the author was on study leave at the Department of Econometrics, University of Sydney, Australia.     

基于旅游者和日常访问者人群行为的城市型景区“共处”空间研究

针对城市型景区内旅游者和日常访问者相互影响的现象，提出“共处”空间概念，从“空间-行为”关系视角总结“共处”空间的时空特性，形成“共处”空间判别依据。基于计算机视觉技术，通过问卷调查，将人群行为划分为互不干扰、围观及参与、干扰及冲突3类，从空间优化与管理角度对列入公园年票体系中的城市型景区提出建议，梳理2类人群关系，提高游憩体验质量。     

资金时间价值解读--关于资金时间价值计算的归纳分析

资金时间价值是现代财务管理的重要价值观念,因此,个人和公司的大部分财务决策都要考虑资金的时间价值。对于资金时间价值的计算,在财务管理教科书中虽然已作了讲解,但作进一步归纳分析仍有必要。本文正是在上述基础上,结合对财务管理的学习,尽可能地利用标有相关现金流量的时间轴对资金时间价值的计算予以归纳分析,描述虽不够完整,但希望对财务管理初学者有一点帮助。     

基于不确定运输时间的军械紧急调运模型研究

针对运输时间不确定的军械紧急调运问题，将运输时间处理为模糊随机变量，建立在任务时间限制期下的最大可能性路径选择模型以确定调运路径。而后，引入超期风险概念，建立以超期风险最小为首要优化目标的军械紧急调运多层觇划模型，实现了对调运方案的优选。最后，给出一个具体军械调运实例来验证模型的适用性。     

供应链中的信息共享与价值增值研究

以一个由一个制造商和一个分销商组成的供应链系统为背景，研究了因信息共享而带来的响应时间缩短对供应链整体及其成员收益的影响。用数理逻辑证明了供应链和其成员因信息共享而实现了价值增值。