The Effect of Respondent Experience/Knowledge in the Elicitation of Contingent Values: An Investigation of Convergent Validity,Procedural Invariance and Reliability

Tests of convergent validity and procedural invariance were used to investigate whether individuals lacking direct experience with a commodity can provide valid responses to contingent-valuation questions eliciting ex post use values. Convergent validity between samples with and without experience was shown to hold for dichotomous-choice responses, but not for open-ended responses.     

Candidate stability and nonbinary social choice

Summary. The requirement that a voting procedure be immune to the strategic withdrawal of a candidate for election can be formalized in different ways. Dutta, Jackson, and Le Breton (Econometrica, 2001) have recently shown that two formalizations of this candidate stability property are incompatible with some other desirable properties of voting procedures. This article shows that Grether and Plott's nonbinary generalization of Arrow's Theorem can be used to provide simple proofs of two of their impossibility theorems. Received: August 15, 2001; revised version: March 11, 2002 RID="*" ID="*" Parts of this article were previously circulated in somewhat different form in a working paper with the same title by the second author. We are grateful to Michel Le Breton and an anonymous referee for their comments. Correspondence to:J.A. Weymark     

Testing separability of public consumption in household decisions

In this paper we propose a sequential strategy, based on the microeconomic approach of the demand theory, in order to test for separability between private and public consumption. The aim of the present work is to verify, using a conditional almost ideal demand system, whether the different components of public consumption exert conditioning effects on the allocative structure of private spending. The empirical estimation of the model and the separability tests are developed for both a demand system in five functional categories of private spending, and for a demand system in six categories, where the private expenditures on those goods and services which can also be offered by the public sector are enclosed in a single functional category. The results of the separability tests, obtained using UK data for the 1974–2000 period, show that public individual consumption plays an important role in modifying consumer choices, while public collective consumption does not affect private consumption behaviours. The relationships between the different components of private spending and public individual consumption are both of substitutability and complementarity; in particular, we find that public individual consumption and the corresponding private expenditures on ‘Health, education, recreation and social protection’ are complements.     

社区商业文化价值的开发

社区商业文化产生于社区商业细致入微的服务及相对稳定的服务对象两者之间积极互动的过程。社区商业经营活动的过程就是社区商业文化形成的过程。质优价宜的商品、全面细致的服务、社区活动的参与和促销宣传活动的结合,强化了社区网点与社区居民之间的亲和关系。充分发挥社区商业文化吸引消费、引导消费的价值,必须从战略的高度对待选址、服务配套、人员配备、参与社区建设等经营管理的问题。     

Planning Your Own Debt

We model the Danish market for mortgage backed securities with a two-factor interest rate model and use a stochastic programming approach to analyse how an individual home-owner should initially compose and subsequently readjust his mortgage in an optimal way. Results show that the 'rules of thumb' used by financial institutions are reasonable, although best suited for more aggressive mortgagors, for whom the delivery option is of some value. More risk-averse investors should also re-adjust frequently, but use more diversified portfolios. Results are insensitive to whether a one- or two-factor model is used, provided the former is suitably calibrated.     

Locally Greater Vulnerability to Background Risk

Willingness to take on risk is influenced by the presence of fair and unfair background risks for decision makers who are risk vulnerable as defined by Gollier and Pratt [1996], for these decision makers are more risk averse when they possess such an uninsurable background risk. We present an alternative derivation of the index of local vulnerability based on Diamond and Stiglitz [1974] compensated increases in risk, such that risk aversion increases with the introduction of any small fair background risk if and only if the index of local vulnerability is positive. We establish that the increase in risk aversion is greater for those who are more vulnerable as measured by the index of local vulnerability.     

Traders’ choice between limit and market orders: evidence from NYSE stocks

In this paper, we examine a trader's order choice between market and limit orders using a sample of orders submitted through NYSE SuperDot. We find that traders place more limit orders relative to market orders when: (1) the spread is large, (2) the order size is large, and (3) they expect high transitory price volatility. A rise in informational volatility appears neither to increase nor decrease the placement of limit orders. We also find that a rise in lagged price volatility decreases the size of spread, which is driven by the increase in the placement of limit orders.     

西部新型工业化道路的特殊性及战略选择

西部目前正处于工业化初期向中期过渡期,加深工业化仍然是一项艰巨的历史性任务。由于西部工业基础薄弱,结构不尽合理,且信息化、现代化程度低,与东部发达地区相比,西部新型工业化道路具有特殊性。因此,优化西部地区产业结构、提高现代化新技术水平,用资源引进资本以及推动农业工业化等,是西部新型工业化的必由之路。     

论国企改革中的不可信威胁、监督制衡与路径选择

虽然大多数国有企业都进行了公司制改造,但是效益并没有得到明显的改善.一方面,所有公司治理机制的有效性最终都取决于在市场竞争中失败成为一个可信威胁,而对于许多国有企业来说,在政府"父爱"的关怀下,这种威胁是不可信的,这使得国有企业经营者没有压力进行创新,得过且过,效益低下是自然的结果.另一方面,国有企业的投资者、债权人只有弱的动力去监督国有企业,国有企业也并没有建立起内部的制衡机制,这使得国有企业的"内部人控制"现象仍很突出,经营者可以"任我行".我们认为国有企业低效与其独特的产权制度密不可分,国有资产分步骤、有条理、有规则地退出竞争性领域,这是改革的关键.引进机构投资者,加强市场监督,加大剩余索取权在企业从业人员中的分享程度也是促进国有企业公司制改革,提高国有企业运营效率必不可少的环节.     

基于循环经济的绍兴休闲观光农业发展研究

［目的］休闲观光农业建设是绍兴市产业转型升级的关键一步,探寻休闲观光农业新模式,能够为休闲农业发展提供理论参考。［方法］文章采用变异系数法确定指标权重,多因素综合分析法测算观光农业发展水平,从循环经济角度出发,评价2001—2016年绍兴市休闲观光农业发展可持续性,提出发展中存在的问题并探索循环型的休闲观光农业新模式。［结果］（1）2001—2016年以来,经济发展可持续性得分较高,资源环境可持续得分次之,循环经济可持续发展偏低。（2）现阶段绍兴市休闲观光农业发展主要存在休闲观光农业自然环境不断遭到破坏,休闲观光农业缺乏整体规划,休闲观光农业旅游支撑体系不够健全等问题。（3）未来发展中,循环经济发展下的休闲观光农业可以开发建设时空复合循环型、资源综合利用循环型、能量多级利用循环型、综合开发利用循环型等4种模式。［结论］未来绍兴市应将循环经济的理念融入到休闲观光农业中,因地制宜,科学选择循环型休闲观光农业发展模式; 规划先行,科学利用农业旅游资源; 强化保障,建立休闲观光农业支撑体系,全面推动休闲观光农业健康持续发展。