共查询到12条相似文献，搜索用时 15 毫秒
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高速公路分车型收费政策的实施,对货运汽车驾驶员的出行路径选择有较大的影响。本文结合有限理性理论,将MNL模型中的效用作为累积前景理论的客观效用,将MNL模型中的概率作为累积前景理论的客观概率,以出行路径选择为重点,探索参考点及偏好系数对货运出行路径选择的影响。将调查数据基于MNL—累积前景理论模型进行验证,计算结果表明了模型的有效性。 相似文献
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Christiaan Behrens Eric Pels 《Journal of urban economics》2012,71(3):278-288
This paper studies inter- and intramodal competition in the London-Paris passenger market during the period 2003-2009. We identify the degree to and conditions under which High-Speed Rail is a viable substitute for airline travel. Using pooled cross-sectional data we estimate multinomial and mixed logit models to examine actual travel behaviour. Our model allows us to analyse the reaction of passenger behaviour on the withdrawal of aviation alternatives and the completion of the High-Speed Rail link between the two cities in November 2007. The results show that travel time and frequency are the main determinants of travel behaviour. The valuation of total travel times changes over the years following the opening of the High-Speed Rail link. Furthermore, we show that the direct elasticity of market share with respect to frequency for a number of aviation alternatives is above 1, indicating that these alternatives are not able to maximise profits. These alternatives subsequently left the market in our sample period. For the remaining aviation alternatives, except for easyJet, we find elasticities of market share with respect to frequency close to 1. Therefore, we conjecture that competition in this market will decline in the long run. 相似文献
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This paper establishes a general equilibrium model to investigate how property rights enforcement impacts wage inequality when unproductive and productive activities coexist. We consider enforcement funded by a gross income tax, a labor tax, or a capital tax, and find that in all of the three schemes, when property rights enforcement is relatively efficient and the skilled sector is more capital intensive than the unskilled sector, an increase in enforcement will decrease wage inequality. However, the critical values of property rights enforcement efficiency under the three funding sources are different. In particular, the critical value in the scheme of a capital tax is always smaller than that in the scheme of a gross income tax, which suggests that if the skilled sector is more capital intensive than the unskilled sector, switching the funding sources of enforcement from a gross income tax to a capital tax can help mitigate wage inequality. 相似文献
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This paper provides a sufficient condition for the existence and uniqueness of a Bayesian Nash equilibrium by regarding it as a solution of a variational inequality. The payoff gradient of a game is defined as a vector whose component is a partial derivative of each player’s payoff function with respect to the player’s own action. If the Jacobian matrix of the payoff gradient is negative definite for each state, then a Bayesian Nash equilibrium is unique. This result unifies and generalizes the uniqueness of an equilibrium in a complete information game by Rosen (1965) and that in a team by Radner (1962). In a Bayesian game played on a network, the Jacobian matrix of the payoff gradient coincides with the weighted adjacency matrix of the underlying graph. 相似文献
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This paper sets out a new mechanism involving the emergence of middle-class black neighborhoods that can lead segregation in American cities to increase as racial inequality narrows. The formation of such neighborhoods requires a critical mass of highly educated blacks in the population, and leads to an increase in segregation when those communities are attractive for blacks who would otherwise reside in middle-class white neighborhoods. To assess the empirical importance of this “neighborhood formation” mechanism, we propose a two-part research design. First, inequality and segregation should be negatively related in cross section for older blacks if our mechanism operates strongly, as we find using both the 1990 and 2000 Censuses. Second, a negative relationship should also be apparent over time, particularly for older blacks. Here, we show that increased educational attainment of blacks relative to whites in a city between 1990 and 2000 leads to a significant rise in segregation, especially for older blacks, and to a marked increase in the number of middle-class black communities. These findings draw attention to a negative feedback loop between racial inequality and segregation that has implications for the dynamics of both phenomena. 相似文献
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We establish new characterizations of Walrasian expectations equilibria based on the veto mechanism in the framework of differential information economies with a complete finite measure space of agents. We show that it is enough to consider the veto power of a single coalition, consisting of the entire set of agents, to obtain the Aubin private core. Moreover, we investigate on the veto power of arbitrarily small and big coalitions, providing an extension to mixed markets of well known Schmeidler (1972) and Vind’s (1972) results in terms of Aubin private core allocations. 相似文献
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供应链网络均衡模型研究 总被引：1，自引：0，他引：1
供应链是一个典型的动态系统,如何协调系统中各成员之间的利益和关系,寻找供应链网络的最终均衡状态,是供应链管理中的一个重要问题,文章首先以变分不等式为工具,介绍了确定性和不确定性需求条件下的供应链网络均衡模型,然后将该类模型转化为非线性互补问题,运用评价函数（merit function）将其转化为无约束最优化问题。最后通过拟牛顿算法求解该类模型,有效解决了该类模型的求解问题。 相似文献
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We develop a notion of subgames and the related notion of subgame-perfect equilibrium – possibly in mixed strategies – for stochastic timing games. To capture all situations that can arise in continuous-time models, it is necessary to consider stopping times as the starting dates of subgames. We generalize Fudenberg and Tirole’s (Rev. Econom. Stud. 52, 383–401, 1985) mixed-strategy extensions to make them applicable to stochastic timing games and thereby provide a sound basis for subgame-perfect equilibria of preemption games. Sufficient conditions for equilibrium existence are presented, and examples illustrate their application as well as the fact that intuitive arguments can break down in the presence of stochastic processes with jumps. 相似文献
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Lindahl and Nash equilibria are often used in the theory of public good. Shitovitz and Spiegel (1998) present an example of 2-person economy with one private good and one pure public good, where the core efficient Lindahl allocation does not Pareto dominate the (inefficient) Nash allocation. In this paper we introduce the new concept of Trading equilibrium for a general public good economy with smooth preferences and a mixed measure space of consumers. We obtain that this economy admits a unique Trading equilibrium. Moreover, the Trading equilibrium induces a core allocation that strictly Pareto dominates the Nash allocation. 相似文献
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Rudy Colacicco 《Journal of economic surveys》2015,29(5):965-992
In this paper, I survey the recent and rapidly increasing theoretical literature using the brand‐new approach in embedding oligopolistic competition in general equilibrium, as designed by J. Peter Neary. First, I introduce the reader to Neary's approach, by describing the main ingredients. Then, I present a comprehensive set of studies that, over the last decade, apply this approach in different contexts, most of which are in open economy, and I examine the relevant outcomes. Although the theoretical literature has generously advanced, there is a lack of research on the empirical side, which would be an important area for future research besides theoretical extensions, some of which I highlight in the conclusions. 相似文献