旅行社价格战的博弈分析

旅行社是旅游产品设计、组织和销售的渠道商以及消费者之间的桥梁.旅行社对旅游业具有重要影响，旅行社之间的价格竞争日益严重，盈利率低。随着我国加入世贸组织，越来越多的外国旅行社进入我国、针对我国旅行社如何走出困境，本文从博弈角度分析旅行社的价格竞争及其对策。     

对蒙代尔-弗莱明模型的修正--中国经济增长对人民币汇率作用机制

蒙代尔-弗菜明模型认为，经济增长会使一国经常账户恶化从而导致本国货币贬值，中国自1994年以来经济快速增长，而经常账户却是持续顺差，在利率不断下降条件下，资金大量流入，人民币汇率稳中有升，外汇储备大幅度增加，这些显然有悖于蒙代尔-弗菜明模型。本文认为，购买力平价理论更符合中国现实，并给出了购买力平价理论动态表述，然后对传统的汇率货币模型进行修正，进一步分析经济增长与汇率之间关系。最后本文对蒙代尔-弗莱明模型国际收支平衡线进行修正，并运用修正后的M-F模型分析在开放经济条件下的财政政策与货币政策效果。     

我国M_2/GDP的动态增长路径、货币供应量与政策选择

本文试图求解我国M2/GDP的动态增长路径,并对与此相关的金融政策选择进行分析。研究发现,我国M2/GDP的变动路径具有Logistic曲线的基本形状,将经历先加速上升后增长速度逐渐减缓,最终趋于稳定状态的变化过程。本文估算了我国M2/GDP的增长上限及其变化拐点。研究还发现,M2/GDP的上升并不必然意味着通胀压力加大,只有M2/GDP偏离动态增长路径时,才会对通货膨胀产生影响。据此本文估算了2005年货币供应量的合理区间。本文认为,应继续实施稳健货币政策,合理确定货币总量增长速度,继续推进体制性改革等措施确保经济金融的稳定运行。     

A theory of reciprocity

People are reciprocal if they reward kind actions and punish unkind ones. In this paper we present a formal theory of reciprocity. It takes into account that people evaluate the kindness of an action not only by its consequences but also by its underlying intention. The theory is in line with the relevant stylized facts of a wide range of experimental games, such as the ultimatum game, the gift-exchange game, a reduced best-shot game, the dictator game, the prisoner's dilemma, and public goods games. Furthermore, it predicts that identical consequences trigger different reciprocal responses in different environments. Finally, the theory explains why outcomes tend to be fair in bilateral interactions whereas extremely unfair distributions may arise in competitive markets.     

动态效率、生产性公共支出与结构效应

利用1979-2008年三次产业的数据和误差修正模型,本文估算了我国政府生产性公共支出与经济动态无效的长期关系,考察了政府生产性公共支出对三次产业的生产要素积累所产生的影响。研究发现:在结构效应为正的条件下,当期公共支出的增加能够影响资本和劳动在三次产业之间,以及三次产业内部不同行业之间的要素积累方式,起到改善经济结构、优化资源配置的作用;我国经济的投资拉动型增长方式及与之相伴随的公共品供给机制,通过"租金"创造机制诱导特定产业的发展,从而能够提升产业结构,促进资源和生产要素的优化配置,符合赶超型经济的目标要求。     

开放条件下中国货币与经济关联度变动原因实证研究

本文运用动态条件相关(DCC)方法估计中国各层次货币与实体经济的关联度。研究发现,1994年前,关联度始终在低位波动,之后大幅提高,总体呈上升趋势。通过在模型中引入金融深化度和经济开放度,本文从不同的侧面解释了货币与经济关联度变动的原因。虽然金融深化度和经济开放度对关联度的影响程度随货币层次的提高而增强,但作用方向却不完全相同;金融深化度越高,经济开放度越低,关联度越强,这表明金融深化理论与中国国情相适应。这对于改革开放具有较强的现实意义。政府通过优先发展金融,深化金融体制改革,能够提高货币对经济增长的效能,促进经济结构的转型和经济持续增长。     

审计独立性的博弈分析

注册会计师的独立性是一种抽象的精神状态,它是通过注册会计师在特定制度安排下的利益选择表现出来的,本文着眼于此,通过建立特定制度下注册会计师行为的博弈模型,从审计收费、注册会计师承担的责任、注册会计师不独立获得的额外好处、管理当局对注册会计师的处罚等方面分析注册会计师的独立性。     

Revisiting Savage in a conditional world

Summary. I present an axiomatization of subjective expected utility and Bayesian updating in a conditional decision problem. This result improves our understanding of the Bayesian standard from two perspectives: 1) it uses a set of axioms which are weak and intuitive; 2) it provides a formal proof to results on the relation between dynamic consistency, expected utility and Bayesian updating which have never been explicitly proved in a fully subjective framework. Received: December 1, 2000; revised version: February 26, 2001     

Extensive-form games and strategic complementarities

I prove the subgame-perfect equivalent of the basic result for Nash equilibria in normal-form games of strategic complements: the set of subgame-perfect equilibria is a nonempty, complete lattice—in particular, subgame-perfect Nash equilibria exist. For this purpose I introduce a device that allows the study of the set of subgame-perfect equilibria as the set of fixed points of a correspondence. My results are limited because extensive-form games of strategic complementarities turn out—surprisingly—to be a very restrictive class of games.     

Analysis and Forecast of the State of Environmental Protection in Russia

The main purpose of the present study is to analyse the emission dynamics of atmospheric and water pollutants in Russia and cost of their removal in the 1980s and early 1990s, and to forecast them by means of a Dynamic Input–Output Model according to different scenarios of future economic development till 1998. Main results of the work are:– methodological principles have been elaborated for singling out the environmental protection sector within the national economy;– a method has been offered for including the ecological block into a Dynamic Input–Output Model of the Russian economy;– a method of data preparation has been elaborated for the ecological block of the above-named model, the data base which characterizes the ecological situation in Russia has been formed and analysed;– calculations for 1994–1998 have been executed for forecasting the economic and ecological development of Russia using the above-mentioned model and the results obtained have been analysed. The results showed that if the existing tendencies towards low environmental protection capital costs remain the same, then the negative environmental impact will increase. In order to implement ecological programs and international agreements, to increase the proportion of removed pollutants, it is necessary to increase substantially expenditures on purifying water and air resources. The proportion of environmental protection investments in the total amount of the national economy capital costs should increase by up to 12–40% according to different scenarios of the economic development and different purposes of the environmental protection policy.