Welfare paradox in economic restructuring

It can be proved theoretically that, because of the previously existing price and structural distortion, a welfare paradox is possible in the former command economies during the transition period. This paradox refers to a situation in which a welfare gain is accompanied by a fall in the reported GNP figure.     

Trade Union Derecognition in Britain, 1988–1994

Since the initial studies of derecognition, many articles have focused on the issue, by and large pointing to a slow increase in derecognition. However, a small number have indicated it is actually much larger. This paper shows that derecognition is even greater than these suggest and that its nature has changed. The paper looks at the contexts of this rise but argues that derecognition should not yet be seen as a major problem facing the unions.     

国际战略联合的成功之路

世界经济中的种种迹象表明,国际战略联合这一国际化经营的新方式正日益显示出其重要性,并终将成为拓展国际化经营活动的主要方式。作为国际化经营活动主角的跨国公司。     

中国的工业改革与效率变化-方法、数据、文献和现有的结果

全要素生产率是理解经济增长的方式和结构的重要指标之一,中国的工业改革正好为经济学家关注和考察不同所有制的企业形式以及改革政策对生产率变动的不同影响提供了丰富的经验基础。在1978年开始的旨在向市场经济转型的中国经济体制改革正在彻底地改变着它的工业部门面临的市场结构和工业组织,并不断造就着一个与世界经济更加融合的制造业部门。新的和更有竞争力的工业部门在竞争中不断获得了高速增长和扩张的机会,使得中国工业部门的生产率改善主要依赖着非国有企业的成长和它的活力。中国工业改革的成就不是挽救了国有企业,而是收缩了国有企业部门的"战线",诱致了一个非国有的新兴工业部门的崛起。     

当前我国经济形势与金融对策

本文从GDP、物价、就业问题以及国际收支方面分析了今年国内宏观经济形势:总体上运行情况良好,但局部依然存在各种问题和困难。金融业作为服务部门,是现代经济的核心。本文着重从金融业改革的角度,按照科学的可持续发展观点,提出了几点对策,其中涉及到优化资源配置,维护金融稳定,深化金融改革,改进金融服务,推进信用建设等。     

Prevention versus Treatment under Precautionary Regulation: A Case Study of Groundwater Contamination under Uncertainty

Policy discussions on agricultural pollution problems characterize prevention as more cost effective and precautionary than ex post treatment. We derive conditions under which treatment alone is more cost effective in situations involving multiple sources of emissions, multiple sites affected, and a commonly used precautionary approach to uncertainty. We also show that a greater degree of precaution can result in less reliance on prevention. An empirical case study indicates that treatment alone is the most cost-effective means of dealing with nitrate in most Maryland community water system wells. The use of leaching prevention measures is restricted to the most intensive poultry producing areas. The incremental cost of precaution is substantial.     

Modeling Conditional Yield Densities

Given the increasing interest in agricultural risk, many have sought improved methods to characterize conditional crop-yield densities. While most have postulated the Beta as a flexible alternative to the Normal, others have chosen nonparametric methods. Unfortunately, yield data tends not to be sufficiently abundant to invalidate many reasonable parametric models. This is problematic because conclusions from economic analyses, which require estimated conditional yield densities, tend not to be invariant to the modeling assumption. We propose a semiparametric estimator that, because of its theoretical properties and our simulation results, enables one to empirically proceed with a higher degree of confidence.     

Stochastic Technology, Risk Preferences, and Adoption of Site-Specific Technologies

A model of farmer decision making is developed to determine the extent to which uncertainties about soil fertility and weather affect the value of site-specific technologies (SSTs) using jointly estimated risk and technology parameters. Uncertainty can lead risk-averse farmers to apply more fertilizers and generate more pollution than in the certainty case. Ignoring uncertainty and risk aversion would overestimate the economic and environmental benefits of SSTs and underestimate the subsidy required to induce adoption. Accounting for uncertainties and risk preferences might explain the low observed adoption rates of SSTs. Improving the accuracy of SSTs would increase the incentives for adoption.     

Estimating Willingness to Pay for Improved Water Quality in the Presence of Item Nonresponse Bias

This article deals with the problem of item nonresponse in contingent valuation surveys using a payment-card method, by applying a grouped-data sample-selection estimation technique that is capable of imputing the missing values conditional upon a respondent's decision to answer a willingness-to-pay question. The advantage of the technique lies in its ability to utilize all of the information in the sample, permitting a more efficient estimation in the presence of item nonresponse bias. The major determinants of willingness to pay appear to be household income, number of children, education, perception of existing water quality, and identification with environmental issues.     

对《形状和位置公差》新标准的理解和应用

通过对《形状和位置公差》新、旧国际的对比，综述了新、旧标准间的不同之处、便于迅速了解和应用新标准。