Optimal Emissions Taxation under Imperfect Competition in a Durable Good Industry

This paper investigates optimal emissions taxation under imperfect competition in a durable good industry where products are sold (instead of rented). As a benchmark, attention is paid to the special case of monopoly with exogenously given product durability. In line with previous literature, the optimal emission tax in this benchmark model falls short of marginal damage (underinternalization). Extending the benchmark model either to the case of an oligopolistic market structure and/or to the case of endogenous product durability then provides two cases in which the optimal emission tax overinternalizes marginal damage.     

Competition and Information Production in Market Maker Models

Abstract:   The microstructure literature models the mechanisms through which fundamental information is incorporated into market prices. This paper extends previous models by endogenising information production and analysing incentives for costly information production. In contrast to the existing literature, increasing the number of informed traders can result in reduced price informativeness. When prices have an allocative role this has welfare consequences: the regulatory implications of a dichotomy between private and public incentives for information gathering are discussed.     

工业控制机的特点及在机电一体化中的应用

工业控制机是应用于工业领域自动控制的一类计算机，在机电一体化系统中有着重要作用。本文介绍了不同形式的工业控制机的特点及应用     

China''''s Cooperative Exploration of Oil and Gas and Its Taxation System

China' s foreign-oriented oil taxation system has, from the beginning, been based upon the positive experiences of other oil-producing countries and has incorporated common international practices. The system has been perfected over decades. It of fers more incentives than other oil-producing countries in the following four aspects: (1) Income tax has a "wide tax base and low tax rate"; (2) VAT levies a low tax rate on ma-     

绿色中药产业初见成效 发展任重道远——对汉中市部分中药产业重点发展县的调查

近年来,汉中市实施＂发展绿色产业,建设绿色汉中＂的战略,中药产业逐渐成为汉中经济发展新的增长极。为了解汉中中药产业的发展情况以及银行业机构金融服务支持情况,笔者先后深入勉县、留坝、佛坪等中药材生产形成一定规模的县域,采取与当地政府部门、银行业机构座谈,深入农户中药材种植基地和实地察看加工企业等方式进行了专题调研,分析了其中问题并提出相关建议。     

Effect of credible quality investment with Bertrand and Cournot competition

We show how credible revelation and ability to commit to quality choice effect equilibrium qualities and welfare when product market is either Bertrand or Cournot competition. We show that results depend on the type of competition but not generally on the cost of quality function. We show that with Bertrand competition, the equilibrium qualities are lower with credible commitment. Competition is moderated and producer surplus is higher and consumer surplus lower. With Cournot competition, higher quality will be better but lower quality will be worse with credible commitment. Consumer surplus is always greater with credible commitment and if cost does not increase too quickly with quality, producer surplus will also increase. Thus credible commitment is a collusive device with Bertrand competition but it can improve social welfare with Cournot competition. Received: February 8, 2000; revised version: February 14, 2002 RID="*" ID="*" The idea of this paper originated in the weekly workshops of Mordecai Kurz at Stanford. I am forever in debted to Mordecai and fellow students – Luis Cabral, Peter DeMarzo, John Hillas, Michihiro Kandori, Steve Langois, Patrick McAllister, Steve Sharpe, Peter Streufert, Steve Turnbull and Gyu-Ho Wang – for their criticism and encouragement. I also benefited from comments from Yi-Heng Chen, Jin-Li Hu, Kala Krishna, Jinji Naoto, Thomas J. Prusa, and Shyh-Fang Ueng at various later stages of this work. Last but not least, I am grateful for the detailed comments of the referee.     

汽车产业拉动“泛长三角”地区经济发展的对策分析——以安徽省为主要研究区域

经济发展规律告诉我们,一个地区的发展会随着发展规律向周边地区扩张。＂泛长三角＂概念的提出给了安徽一个绝佳的发展机会,以安徽地区为主要研究对象,分析汽车产业的现状,探讨＂泛长三角＂地区汽车产业的发展。     

论后危机时代新兴产业崛起下信息产业的转型——以广西为例

融入新兴产业实现信息产业的转型,是广西经济建设的内在需要,也是顺应世界发展潮流的明智之举。本文对广西信息产业转型发展的可行性、难点及其突破思路进行分析。广西信息产业具备一定的规模,传统工业体系健全、相对发达,这为信息产业的转型奠定了基础;市场需求旺盛、关键技术得以突破以及广西与东盟有良好的信息产业合作平台,则为培育和发展新一代信息产业创造了条件。但是,与此同时,也面临人才匮乏,资金短缺,基础设施滞后以及政策执行不力等诸多难题,必须积极采取有效措施将其一一破解。     

河南省战略性新兴产业发展的现状分析与策略选择

近年来,河南省以高新技术产业为主体的战略性新兴产业发展较快,成效显著,但同时也存在着总量规模小,产业集中度低,创新能力弱,体制、机制不完善等问题。十二五时期,河南省战略性新兴产业的发展面临着国内外激烈竞争的格局,存在着巨大的挑战和前所未有的机遇。从产业基础、资源禀赋、发展实践等多方面来看,河南省发展战略性新兴产业的策略选择,应定位于依托传统优势产业发展战略性新兴产业,并通过制定差异化的产业政策、推动传统优势产业的链式发展、发挥老工业基地的示范带动作用等措施来实施这一策略。     

论我国钢铁行业与铁矿石贸易的协同发展

作为我国基础产业的钢铁行业近年来取得了巨大的发展,伴随而来的是与其密切相关的铁矿石贸易的发展,但是钢铁行业与铁矿石贸易并没有形成协同发展的良好局面。文章对目前我国钢铁行业和铁矿石贸易发展面临的问题进行了分析,基于此提出了我国铁矿石资源产业的发展战略。