Comparing Environmental Policy Instruments in the Presence of Imperfect Compliance – A Case Study

In this paper, we aim to include rule making, implementation, monitoring and enforcement costs into the cost comparison of policy instruments. We use a simple partial equilibrium model and apply it to the textile industry. The model includes discrete abatement functions and costly monitoring and enforcement. The case study uses individual firm data to simulate the differences in abatement costs and compliance decisions between firms. We compare combinations of regulatory instruments (emission taxes, emission standards and technology standards) and enforcement instruments (criminal fines, civil fines and transaction offers). We show that the inclusion of information, monitoring and enforcement costs indeed alters the relative cost efficiency of the different instruments.     

区域发展中地理势能的初步研究

从区域发展的各个主要相关要素，初步探讨区域发展的地理势能。把地理区域作为一个系统，当一个区域相对于其它区域在地理位置、区际差异、区域结构和环境质量等方面，所显示出发展的综合优势即是该区域在这一系统中的地理势能。这种地理势能的大小受自然环境基础的深刻影响，并可随着不同的历史阶段、科学技术的发展而转化。一个地区的地理位置对比优势的态势为地理位置势能。地理位置和区位在自然条件上的势能促使其获得政策上的势能，并直接影响到产业结构的形成。地域间环境条件、生态功能、产业优势的潜在影响力为地理区际势能，如各种环境条件以及这些条件合理匹配的所谓地理地带性规律，决定了传统的农业生产。区际的差异还体现在区域发展的历史过程上，历史悠久的区域往往具有较高的地理区际势能。区域自然环境结构对于区域发展优势的影响力为区域结构势能。环境质量势能是环境质量对于区域发展优势的态势。生态环境脆弱、土地退化、自然灾害、环境污染等，大大减弱了区域环境质量势能。地理势能遵循能量守恒定律，势能转化的动力来源于自然与社会两方面。     

Domestic and international strategic interactions in environment policy formation

Summary. In this paper, we establish the most possilbe general formulation of the technology governing carbon-gas emission, giving rise to global external diseconomies, and ty to explore into the strategic interactions,both domestic and international, when an individual country decides on the environmental policies. Through the comparison among emission taxes, quotas, and standard in the perfectly competitive private economies, we find that the first two policies are equivalent but they are different in effects by virtue of what we may call the tax-exemption effect of emission standards. Such a difference in the policy effect further affects the other country's welfare through the global externalities, amplified through whether the government can precommit to either the emission tax or the emission standard. Received: January 16, 2001; revised version: April 16, 2002 RID="*" ID="*" The authors thank the valuable comments by an anonymous referee. Ministry of Education and Science for its financial support is also greatly acknowledged. Correspondence to:K. Kiyono     

山东省水土流失经济损失与生态价值损失评估

介绍了山东省水土流失现状，分析其危害，重点探讨了水土流失经济损失和生态价值损失的计算方法，建立经济损失计算模型，提出水土流失生态一经济面积边际比的概念，计算山东省县域边际损失比，并对其进行区域分布规律分析。     

Diversification, convex preferences and non-empty core in the Choquet expected utility model

Summary. We show, in the Choquet expected utility model, that preference for diversification, that is, convex preferences, is equivalent to a concave utility index and a convex capacity. We then introduce a weaker notion of diversification, namely “sure diversification.” We show that this implies that the core of the capacity is non-empty. The converse holds under concavity of the utility index, which is itself equivalent to the notion of comonotone diversification, that we introduce. In an Anscombe-Aumann setting, preference for diversification is equivalent to convexity of the capacity and preference for sure diversification is equivalent to non-empty core. In the expected utility model, all these notions of diversification are equivalent and are represented by the concavity of the utility index. Received: July 27, 1999; revised version: November 7, 2000     

成都中小企业集群融资体系的构建

成都中小企业已成为推动成都经济发展的主要动力,成为全市国民经济和社会发展的重要力量.然而,融资难这一矛盾在中小企业发展过程中日益突出,而中小企业集群融资正是解决这一问题的有效途径之一.本文以成都市中小企业融资难为例,从中小企业集群的角度出发,探讨中小企业融资体系的创新.     

我国西部生态环境建设绩效评价体系研究

“局部改善,整体恶化”是我国西部地区生态环境状况的真实概括。为了治理西部地区的生态环境,党中央于1999年6月确定了西部大开发战略,将能源开发同生态环境治理并举。6年来,中央财政性建设资金投向西部地区4600亿元,转移支付和专项补助5000多亿元。国家计划在10年间退耕还林2．2亿亩,投资3600亿元。由于生态环境建设的绩效是一个漫长的量变累积过程,通过确定我国西部地区生态环境状况四大特征,建立“常态、一般、差”三级评价指标体系,对西部地区生态环境建设的绩效做出客观评价,有利于坚定人们对西部地区生态环境建设的信心。     

基于公平与效率均衡的城乡和谐

已有的对城乡和谐发展问题的研究大多将注意力集中在城乡和谐发展的途径方面,却忽视了对城乡和谐衡量标准的研究.本文从公平与效率统一(均衡)的视角来解析城乡和谐的标准以及城乡和谐演进的机制,并构建了一个基于公平与效率均衡的城乡和谐发展模型.该模型揭示,城乡和谐是公平与效率均衡的函数,市场机制与政府制度的相互配合共同促进城乡和谐发展.     

清洁发展机制及其对我国可再生能源发电的启示

清洁发展机制（CDM）是近几年来国际社会的热门话题，本文从走循环经济道路和建立环境友好型社会出发，结合清洁发展机制，从各方面分析了我国可再生能源发电的现状和CDM项目的市场潜力及优势。进而根据目前我国CDM项目的开发情况分别从微观和宏观两个层面提出了一些建议，如选择合适的融资方式、强化政策体系的建设与创新、提高国际谈判能力和建立CDM联系机制等。     

畜禽养殖业的环境影响及经济分析

畜禽业污染是我国农业面源污染的主要来源。本文估算了我国畜禽养殖业污染物排放量,阐述了畜禽养殖的环境影响,分析了畜禽污染内在的经济原因,并提出了防治畜禽污染的经济政策和措施,包括发展循环畜牧业、建设现代化的畜禽业物流体系、采纳各种环境经济手段、界定农村公共资源产权、实施优质畜禽产品品牌化战略、鼓励发展环保产业。