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22.
Lilyan?E.?FulginitiEmail author Richard?K.?Perrin 《Journal of Productivity Analysis》2005,24(2):133-155
Technical change is generally characterized by a rate and biases, both evaluated for given producer prices. This paper examines
the potential discrepancy between this rate and the corresponding rate of consumer welfare change as measured by Allais distributable
surplus. We postulate a general equilibrium context with various market failures (taxes, quotas, imperfect competition, and
“poorly priced” commodities), and use comparative statics to express the rate of welfare change in terms of the rate and biases
of the technical change. An elementary simulation model of a taxed economy suggests that the rate of welfare change may differ
from the rate of technical change by as much as 50% under plausible circumstances. 相似文献
23.
This paper studies rational choice behavior of a player in sequential games of perfect and complete information without an assumption that the other players who join the same games are rational. The model of individually rational choice is defined through a decomposition of the behavioral norm assumed in the subgame perfect equilibria, and we propose a set of axioms on collective choice behavior that characterize the individual rationality obtained as such. As the choice of subgame perfect equilibrium paths is a special case where all players involved in the choice environment are each individually rational, the paper offers testable characterizations of both individual rationality and collective rationality in sequential games. 相似文献
24.
We develop a supply-demand model for the public sector with a political equilibrium. The model considers the inefficiencies caused by taxes and includes costs associated with the provision of public goods to consumers. We show that the size of the public sector may depend on the median voter's income, population size, costs associated with paying tax, and quality of institutions, all of which reflect the costs of provisioning public goods. The estimates for the Organisation for Economic Co-operation and Development member countries are compatible with theoretical predictions; however, they do not confirm Wagner's law, which holds that the public sector share does not grow with an increase in income. A greater dependency ratio and the Gini coefficient increase demand for redistribution policies. Greater government effectiveness is a supply-side factor that increases the public sector's share in an economy. 相似文献
25.
通过考虑消费者剩余,企业利润中引入承担社会责任参数,建立了具有异质性有限理性的古诺寡头博弈竞争模型,分析利润相关参数对系统博弈均衡稳定性的影响,并进行了数值模拟。研究表明单方有限理性系统比双方有限理性系统稳定。产品成本超过一定阈值应避免产量竞争,可以通过承担社会责任,提升产品价格来增加利润,但当企业承担社会责任增加时,系统稳定性降低。此时降低调整产量的速度,观察竞争对手产量调整速度,避免系统进入混沌状态,失去最优产量优势。 相似文献
26.
Simon P. Anderson
ystein Foros Hans Jarle Kind 《Journal of Economics & Management Strategy》2019,28(1):125-137
Consumer “multihoming” (watching two TV channels, or buying two news magazines) has surprisingly important effects on market equilibrium and performance in (two‐sided) media markets. We show this by introducing consumer multihoming and advertising finance into the classic circle model of product differentiation. When consumers multihome (attend more than one platform), media platforms can charge only incremental value prices to advertisers. Entry or merger leaves consumer prices unchanged under consumer multihoming, but leaves advertiser prices unchanged under single‐homing: Multihoming flips the side of the market on which platforms compete. In contrast to standard circle results, equilibrium product variety can be insufficient under multihoming. 相似文献
27.
A carbon tax is potentially a policy that can reduce CO2 emissions and mitigate climate risks, at lowest economy-wide costs. We develop a dynamic CGE model for Spain to assess the economic and environmental effects of a carbon tax, and test the double dividend (DD) hypothesis. We simulate the impact of three carbon taxes: €10, €20 and €30 per ton of CO2. For each tax, four ‘revenue recycling’ scenarios are examined: a reduction of taxes on capital, on labor, on value-added tax, and a scenario in which revenues are not recycled. We find a DD for taxes of €10/ton and lower, within five to seven years of implementation. We estimate an annual CO2 emissions reduction of around 10% with this tax. Under some circumstances, the DD can be achieved for a tax of €20/ton. In any case, recycling revenues to cut pre-existing taxes reduces costs of imposing carbon taxes. 相似文献
28.
The core and competitive equilibria of a large exchange economy on the commodity space ?∞ will be discussed. We define the economy as a measure on the space of consumers’ characteristics following Hart and Kohlberg (1974), and prove the existence of competitive equilibria and their equivalence with the core without assuming the convexity of preferences. 相似文献
29.
A transportation network-multiregional CGE model is applied to estimate the synergy effects of a set of highway projects on value added by region and industrial sector. This synergy effect is defined as a difference between the summation of the net GDP increase from the development of each highway sub-link without spatial linkage and the change in GDP resulting from the concurrent development of all links with spatial linkages. Among nine east–west highways in Korea, the East–West 9 highway increases the GDP by 0.3% over the 30-year time period horizon, with 0.016% of the GDP due to the synergy effect. The East–West 9 highway has the largest synergy effect of US$0.164 billion per year on the manufacturing sector of Kwangju Metropolitan Area, resulting in a gain in a regional GRP per capita of US$15.88 per year. Since most synergy effects are generated in less developed regions, highway development can contribute to the reduction in regional disparities. 相似文献
30.
多归属纵向差异化双边市场下竞争均衡 总被引:1,自引:0,他引:1
罗焕然 《北京市经济管理干部学院学报》2015,(1):11-17,32
双边市场作为产业组织理论研究的热点问题,涉及平台纵向差异化的研究还很少,本文依照现实中普遍存在的双边的多归属和平台之间差异化的情况,构造了网络外部性参数不对称的多归属差异化Hoteling模型,并考察了新均衡下双边平台的定价、市场势力和利润情况。我们发现,单归属均衡受平台质量差别程度影响,多归属均衡受相异平台质量影响较大;网络外部性参数的不对称是双边市场与单边市场均衡差别的主要原因;其次与单归属均衡结果相比,多归属差异化均衡时拉大了两平台间上下游定价、市场份额和利润差额。 相似文献