The micro-foundations of intertemporal price discrimination

Summary. This paper investigates the optimality of intertemporal price discrimination for a durable-good monopoly in a model where infinitely-lived households face an intertemporal budget constraint, and consume both durable goods and non-durable goods. We prove that the optimal price of the durable good is not constant, and may decrease or increase over time. Some households may choose to purchase the durable good at a later date, and pay lower or higher prices, since the gain in discounted utility of consuming more of the non-durable good more than compensates for the loss in utility from delaying the consumption of the durable good.Received: 12 March 2004, Revised: 7 January 2005, JEL Classification Numbers: D40, D42, D91.I would like to thank C.D. Aliprantis, the Editor, and an anonymous referee for their generous advice, and constructive comments and suggestions. I have also enjoyed discussions with John Quah on the subject. Research support from the Wharton-SMU Research Centre, Singapore Management University, is gratefully acknowledged.     

构建和谐社会需要正确处理的十大关系

构建和谐社会,是一个长期的过程.在经济高速发展的轨道上,各种利益、各种关系的摩擦、碰撞是激烈的.构建和谐社会,要处理的关系非常多.其中,尤其要正确处理好十个主要方面的关系:经济增长与可持续发展的关系;人口与就业的关系;经济和教育的关系;城市和乡村的关系;高新技术产业与传统产业的关系;积累和消费的关系;内需和外需的关系;强势群体与弱势群体的关系;改革与发展的关系;中国特色与国际惯例的关系.     

竞争性行业管理体制改革的方向和重点

竞争性行业是指所有不具有自然垄断性质的行业.虽然我国竞争性行业管理体制改革已取得了重大进展,但还存在政企不分、职能转变不到位、部门垄断、行业进出通道不畅、行业管理法规不健全等问题.改革的方向和重点是:推进政企分开、政资分开、政监分开和政社分开,理顺行业管理体系,打破部门垄断和地方保护,疏通行业进入和退出通道,完善行业管理法规等.     

World Oil Depletion Models: Price effects compared with strategic or technological interventions

World oil depletion, including natural gas liquids, was modelled in the past by many authors. Recently, Guseo and Dalla Valle have introduced and Guidolin has applied a new approach following perturbed life-cycle diffusion models. Here we examine joint effects of economic and strategic or technological interventions using a Generalized Bass Model (GBM). Statistical analysis takes into account three different hierarchical levels: natural diffusion, long memory interventions and stochastic components. The main results confirm the statistical significance of historical 1970s shocks and highlight a strong long memory effect due to an increase in oil production after World War II. The estimated peak-date, 2007, and the 90% depletion time, 2019, are determined under an equilibrium intervention hypothesis.     

煤炭价格指数的理论设计与应用研究

论证了在当前煤炭价格风险凸现的情况下,推出煤炭价格指数是运用煤炭期货、期权及互换等金融衍生工具的重要前提,并借鉴国外煤炭价格指数应用与研究的经验,提出我国煤炭价格指数的基本体系及编制的基本原则和基本方法.     

Competitive supply behavior when price information is fuzzy

The theory of fuzzy sets is applied to the output decisions of a price-taking firm facing imprecise information about expected future prices. Accepting risk resulting from the randomness of prices, the manager is interested in expected profits only. Since the set of possible expected-price vectors is fuzzy, a suitable defuzzification strategy is defined in analogy to the pessimism-optimism index proposed by L. Hurwicz. It depends on the manager's willingness to accept surprises resulting from a deviation of the true expected prices from the values that guided output decisions. Despite a linear cost function, well specified solutions to the optimization problem are possible without resorting to capacity constraints.     

我国旅游价格管理：现状、改革背景与政策分析

旅游业发展是一项复杂的系统工程，需要各相关行业和各项政策措施的配套协调。由于旅游价格的杠杆效应，如何应对入世给我国旅游业带来的挑战，改革并完善与国际接轨的旅游价格管理新体制是每一个旅游价格管理工作者应当思考的现实问题。     

顺德市农村管理体制改革实践的理论分析

本文论述了顺德市农村管理体制创新的四个方面的内容 :村域中心化 ;村制向市制转变 ;股权固化和资产量化 ;村委会职能的转变。通过改革 ,顺德市农村管理体制实现了体制城市化、产权市场化和资源集约化     

会计信息质量与市场定价分析

本文以应计质量、盈余持续性、盈余可预测性、盈余平滑度作为会计信息质量的代理变量,通过研究会计信息不同纬度的质量与权益资本成本之间的关系,为投资者的市场定价及对信息质量的关注程度提供证据。研究结果表明,除盈余的持续性不显著外,其他各项质量与权益资本成本之间均呈负相关关系;在对权益资本成本的影响程度方面,无论是单独影响还是条件影响,应计质量影响程度最大,其次是可预测性。     

新农村金融:理论、成因及中国相关制度安排——基于建设社会主义新农村视角

发展农村经济、建设社会主义新农村离不开农村金融的支持,我国现存农村金融体制的种种缺陷已经成为阻碍农村进步的绊脚石。本文对我国农村金融体制进行考察,对其农村金融组织体系及配套的扶持政策进行评介,找出我国农村金融的不足,提出与社会主义新农村建设相适应的农村金融体制改革路径选择。主要结论有:我国农村金融体制改革,要发挥市场机制的导向作用,建立农村资金良性循环机制;政府应该承担主导作用,建立多层次、全方位的农村金融体制等。