建设生态文明的实践与探索——林业生态建设30年回眸

改革开放30年来,林业生态建设以生态文明为目标,坚持走建设生态、改善生态之路,在生态文明建设上进行了不懈的探索和实践,取得了令人瞩目的成绩。三北防护林建设工程为生态文明建设首开先河;开展全民义务植树运动谱写了生态文明建设新篇章;造林灭荒行动掀起生态文明建设新高潮;六大林业重点工程成为新世纪生态文明建设新壮举。中国可持续发展林业战略研究为生态文明建设提供了新理论,其核心是生态建设、生态安全、生态文明。发展现代林业掀起生态文明建设新高潮,推进生态文明建设走上新的里程。     

Diffusion of mobile telephony: An empirical study in Taiwan

Mobile telephony penetration is a major indicator of mobile telephony diffusion. Taiwan had a mobile telephony penetration of 108% in 2002, ranking first in the world. This study analyzes this accelerated diffusion in terms of growth model and determinants of the diffusion rate. To eliminate the inherent uncertainty associated with choosing the optimal growth model, this study compares the performance of three conventional models, namely Gompertz, Logistic and Bass, to identify the most appropriate model, and to distinguish the forces driving the diffusion rate. Empirical results indicate that the most appropriate model is the Logistic model. Network externalities, which this study shows to be the same as the imitation effect in the Bass model, explain the superiority of the Logistic model. Moreover, market competition, which markedly reduces service prices, is identified as a primary driver of the diffusion rate of mobile telephony in Taiwan. Economic conditions, technological innovation and number of operators are insignificant factors. Finally, mobile telephony is a substitute for fixed-line telephony in Taiwan.     

Market Power in Chinese Taipei: Laws, Policies and Treatments

The experience of Chinese Taipei shows that opening up a previously protected market to new entrants can be a more effective and reliable way to enhance competition than regulating the behavior of dominant or monopolistic firms. Moreover, when opening up the market, the liberalizing measures adopted by government should be market-structure-neutral. That is, it should not try to dictate the direction and results of market competition. A more pressure-resistant mechanism should be designed to deal with market power, taking the form of a regime that is cross-sector, independent and collective in its decision-making, such as has been the case with Chinese Taipei's Fair Trade Commission.     

资源异质性农户的退耕还林受偿意愿及其影响因素研究——基于云南省2个县退耕还林的调研数据

生态补偿是激励农户参与退耕还林工程的有效手段,农户作为生态补偿的主要利益相关者,评估其受偿意愿对制定完善生态补偿政策以及实现生态保护的有效性和可持续性都有重要的现实意义。本文基于云南省2个县23个村组204份退耕还林调研数据,采用条件价值法(CVM)和Tobit回归模型,分析农户参与退耕还林受偿意愿及其影响因素。在此基础上引入了分位数回归,进一步分析农户在不同分位点受偿意愿的差异。研究结果表明:新一轮退耕还林农户退耕受偿意愿为2353.4元/亩,补偿期限5年,约为现退耕还林补偿标准的1.5倍。农户的资源稟赋特征及主观认知是影响受偿意愿最主要因素,且在不同分位数上影响系数存在差异性。在补偿方式的选择上具有明显的年龄差异性,年龄大的农户更倾向于现金补偿,而年轻农户更倾向于政策补偿和技术培训。因此,在加强生态环境重要性以及政策宣传的同时,适当提高退耕还林补偿标准,促进补偿方式的多元化,根据农户资源稟赋的不同,实现补偿标准的差别化。     

上市公司控制权转移的财富效应分析

上市公司控制权的转移会改变投资者对目标公司的预期,从而引起目标公司股价的变化,进而使得目标公司股东的财富发生变化。本文采用事件研究法,分行业对2002年我国资本市场上第一大股东发生变更的目标方公司股东财富进行了实证研究。结果表明:对于整个资本市场而言,控制权转移能为目标公司带来显著的财富增加;而对于不同行业控制权转移的财富效应存在着较大的差别,只有原材料企业在公告日前可以获得显著的正财富效应,而工业企业和消费企业的财富效应并不明显。     

工厂自动化物流系统——企业物流技术选型

在制造业中，物流贯穿于工厂生产的各个环节．它们的联系是那样的紧密．甚至已经融入到生产工艺过程之中。无论原材料配送、零部件配送．还是成品酉B送，都需要进行合理的安排，生产过程中的工件和工具的存储、搬运、装卸更需要精密地规划设计。只有合理组织生产物流过程．才有可能使生产过程始终处于最佳状态．避免因物流不畅而导致的生产停顿现象的发生．同时还可以大大缩短生产周期．节约劳动力．提高生产效率．做到柔性化生产．．正是基于这样的认识，我们决定做这个专题。但是当我们用“自动化”这个词来限定专题的范围的时候，其实是很有些犹豫的。因为．就目前而盲．工厂自动化物流系统高投入的特点．足以让很多中国制造企业望而却步。但我们想．这并不妨碍制造企业去了解工厂自动化物流系统的装备特点、应用前景以及供应商的情况。毕竟．自动化是制造业未来的方向。     

Robust influence diagnostics for generalized linear models with continuous responses

This article introduces two parametric robust diagnostic methods for detecting influential observations in the setting of generalized linear models with continuous responses. The legitimacy of the two proposed methods requires no knowledge of the true underlying distributions so long as their second moments exist. The performance of the two proposed influence diagnostic tools is investigated through limited simulation studies and the analyses of an illustration.     

高校人力资本的价值计量和收益分配的实证分析

本文从人力资本价值计量和收益分配的角度出发，就如何调动高校教师的积极性，在对GC大学人力资本管理实例分析的基础上，设计了一套高校人力资本计量与激励模型，以充分调动高校教师的积极性，将会对高校人力资本的管理和提高办学效率具有重要参考价值。     

Market reactions to announcements to expense options

The joint hypotheses of informationally efficient markets, transparent financial statements, and adequate accounting disclosure suggest that announcements of changes in the accounting treatment of employee stock options from footnote disclosure to expense recognition should not trigger stock price reactions because free-cash-flows will not change. Event study results from a sample of 241 firms that announce such changes reveal statistically significant negative price changes followed by positive price changes about equal in magnitude. We propose the learning, sophisticated investor, neglected firm, and firm size hypotheses to explain the observed announcement-period stock price reaction.

乌克兰危机与中国的选择

乌克兰危机的爆发,有极其复杂的国内因素的原因。同时,它更是以美国为首的西方和俄罗斯在地缘政治上博弈的结果。乌克兰危机对国际形势的影响虽然不如舆论界预期那么大,但它可能会影响美国＂重返亚太＂战略的部署和进度。中国应当冷静观察,沉着应对。在始终坚持＂以经济建设为中心＂的基础上,坚定既有原则立场,强调尊重独立国家的主权和领土完整,坚决反对干涉内政,同时也要积极有所作为,为政治解决乌克兰危机,发挥独特的大国作用。