On the generic impossibility of truthful behavior: A simple approach

Summary We provide an elementary proof showing how in economies with an arbitrary number of agents an arbitrary number of public goods and utility functions quasi-linear in money, any efficient and individually rational mechanism is not strategy-proof for any economy satisfying a mild regularity requirement.The authors wish to thank William Thomson, Salvadpr Barberá, José Angel Silva and an anonymous referee for helpful comments. The remaining errors are our exclusive responsibility. Financial support from DGICYT under project PB 91-0756 and the Instituto Valenciano de Investigaciones Económicas is gratefully acknowledged.     

Idea and goals of environmental protection and ecological construction in the 11^th five-year plan period

In this paper, the executive of the 10th Five- Year Plan in the field of environmental protection and ecological constrution is reviewed, and the charactristics of economic growth and its environmental impact on the 11^th Five-Year Plan is forecasted and analyzed. A principal idea of eavironmental protection and ecological construction is put forward for the 11^th Five-Year Plan pertod： strensgthen the point treatment in key areas and set the main targets based on the idea. The relating countermeasures in national level are proposed as follows： set up appropriate ideas for official achievements by launching resources and environmental cost acconting; adjust the industrial struacture actively by industrial policies and strenuous work; develop circular economy, change the mode of environmental protecgon from end treatment to headstream and proeess control： strengthen the market mechanism in the process of pollution treatment, set up the system of ＂who treats who benefits＂ ; perfect interrelated laws and standards, strengthen the ability of environmental munagement; lay extra emphasis on two key targets： water pollution tretment in key river basins and management of the reserves; and combine the ecological consnuction and poverty alleviation in higher level.     

Microeconometric models of infrequently purchased goods: An application to household pork consumption

The double-hurdle and infrequency-of-purchase models are generalized with the inverse hyperbolic sine transformation in the dependent variable. The resulting specifications feature more flexible parameterization and error distributions than the untransformed models. Using the 1987–88 Nationwide Food Consumption Survey data on household pork consumption, a nonnested test suggests that the IHS double-hurdle model provides better characterization of the data-generating process than the IHS infrequency-of-purchase model but the elasticities derived from these models are similar. Own-price effects on the probability and level of consumption are negative and significant, but the elasticities are small. Income and cross-price effects are not significant. Household age composition, education, gender of meal planner, and race are among the demographic variables that affect consumption.     

文化软实力：长三角城市的核心竞争力

“十一&;#183;五”期间，城市竞争将进入以软实力为标志的新阶段。从长三角社会经济发展的现实来看，软实力是一个城市建立起独特的竞争优势并保持可持续发展的内在动力。城市软实力体系构建已经迫在眉睫。所谓“软实力”，也译为“软力”、“软力量”或“软权力”，是与“硬实力”相对而言的一个概念，它最早由美国学者约瑟夫&;#183;奈在《大西洋月刊》提出，并进而在他的著作《注定领导：变化中的美国力量的本质》和《软力量：世界政治中的制胜之道》中加以阐释。     

浅析企业执行力

一、关于执行力的理解 “执行力”一词是近年来提出来的，对于其内涵，人们从不同的角度有不同的理解。所谓执行力（Executive Ability）就是将战略规划落到实处，是一门如何完成任务的学问。它是一种由企业领导发起并最先掌握，继而带动整个组织形成的一种战略执行能力。执行力就是要求员工按质按量完成自己的工作任务，执行力就是核心员工的执行力，执行力就是要排除官僚主义的作风，执行力就是要坚持一丝不苟。     

旅游管理专业实践教学创新模式研究——"三·三·二"模式的构建与实践

目前我国高等旅游教育与旅游产业发展需求严55重错位,学生学历与能力不相匹配,其中一个重要原因是现行实践教学模式滞后于旅游产业发展需求.旅游管理专业实践教学"三·三·二"模式的构建与实践是对现行实践教学模式一种创新性探索,对于解决目前高校旅游管理专业实践教学存在的问题和遇到的困难,推动旅游管理专业人才培养模式改革与创新具有一定的参考价值和指导作用.本文阐述了"三·三·二"模式构建的理论基础、基本理念、构建目标、模式框架及实施策略.     

Strategic Environmental Standards, Wage Incomes and the Location of Polluting Firms

The purpose of this paper is tostudy how the choice of environmental standardsby governments is affected by the existence ofwage incomes when firms locations areendogenous. In developed countries labor isunionized, which allows positive wage incomesto arise. Thus, each government has incentivesto persuade firms to locate in its countrysince social welfare depends on suchincomes. But, as pollution damages theenvironment, each government will only try toattract polluting firms to thecountry, to obtain the wage incomes, whenthe valuation of environmental damage showsthat it is low.     

Employment shifts, economic reform and the changes in public/private sector wages in Mexico: 1987–1997

Over the last decade, the public sector in Mexico experienced substantial fiscal reform, divestiture of public enterprises, and the elimination of many regulations affecting pay and employment. This study analyzes the changes in the public/private sector differences in wages during the 1987–1997 period. The results from analyzing microdata from the Encuesta Nacional de Empleo Urbano show that relative public sector wages increased from 1987 to 1997. Most of the relative wage increase in the public sector can be explained by increases in the price of skills and by changes in sorting across sectors. The results have important public policy implications since they suggest that public sector workers earn more and their wages have grown faster than those of their private sector counterparts. As such, policies contemplating public sector reform should take into account the effect of these measures on the inter-sectoral income distribution and the overall economic growth. First version received: April 2000/Final version received: December 2000