电煤价格放开后我国火电企业最优存煤数量模型研究

针对2008年初的冰灾引发的电煤安全库存问题,在电煤价格放开的大环境下,运用Stachelberg模型对煤炭企业和火电企业的利润函数进行分析.在同时考虑电煤和市场煤的情况下对现阶段火电企业面临的最优电煤库存数量问题进行探讨,为火电企业的电煤库存问题提供了一定的思路.     

财险市场价格竞争有效性研究

我国国内财产保险业务自1980年恢复以来虽然取得了很大成绩,但依旧存在较多问题,特别是市场集中度偏高,导致市场竞争长期处于低水平竞争状态。本文根据市场份额将我国财险公司划分为在位者与竞争者两类,应用Stackelberg博弈模型,对在位者与竞争者的保险价格竞争从单时期和多时期两个层次进行分析,得出在财险市场中,单纯的价格竞争是无效的,并建议从产品和服务的创新、投资、成本管理和客户信息搜集与管理四方面协助价格竞争的展开。     

碳交易和绿色补贴政策下的低碳供应链最优决策与协调

考虑政府的碳交易管制和绿色补贴政策,针对由政府、单个制造商和单个零售商组成的三级低碳供应链,运用博弈理论建立了政府主导下的三阶段Stackelberg博弈模型和集中决策模型。重点分析了消费者绿色偏好、碳交易价格和减排成本系数对低碳供应链最优决策和社会福利水平的影响。利用两部收费契约和低价促销策略分别对所建模型进行了协调研究,并利用数值算例对文中结论进行了验证。研究发现:较强的消费者绿色偏好有利于提高产品的绿色度、渠道成员的利润和供应链的社会福利水平;产品的绿色度和供应链的社会福利水平在集中决策模型下最高而在分散决策模型下较低;政府的最优绿色投资补贴率在消费者绿色偏好程度较强时降低而在碳减排难度较大时上升;在参数满足一定条件下,两部定价契约和低价促销策略可实现低碳供应链的完美协调。     

具有Stackelberg博弈特征的供应链协调机制研究

如果针对一类分布控制型供应链,分析成员的独立决策行为,就能得到供应链系统上下层之间所具有的Stackelberg博弈特征,通过对Stackelberg博弈特征的分析,利用供应链协调理论,再进一步给出具有Stackelberg博弈特征的供应链协调机制的设计过程.     

Non-renewable resource Stackelberg games

The market structure for many mineral industries can be described as oligopoly with potential for Stackelberg leadership. This paper derives and analyzes dynamically consistent extraction equilibria in a two-period discrete-time “Truly” Stackelberg (TS) model of non-renewable resource extraction, where firms move sequentially within each period and where both the leader and follower have market power. We show how the leader may be able to manipulate extraction patterns by exploiting resource constraints. Whether the leader wants to speed up its own production relative to the Cournot–Nash (CN) equilibrium depends on the shape of its iso-profit curve, which is affected by the two firms’ relative stock endowments and relative production costs. If the leader extracts faster, then the follower extracts slower, but in aggregate the industry extracts faster. Unlike static Stackelberg games, the follower does not necessarily have a second mover disadvantage.     

Market Instability in a Stackelberg Duopoly

m -period duopoly model with inventory costs, where each firm chooses when to produce. We find that, in contrast to most existing works concerning endogenous roles of the firms, no pure strategy equilibrium exists when m is strictly larger than two. This result indicates that no stable pattern of allocation of roles exists except for a two-period model; thus the leader-follower relationship inevitably becomes instable. Received August 1, 2000; revised version received July 20, 2001     

Stackelberg博弈下的MCP竞价上网研究

通过建立一个发电厂、电网公司和电力用户之间的三方两阶段的Stackelberg博弈模型,能够有效的考察作为电力市场领导者的发电厂的持留电量、串谋报高价等机会主义行为,并得出结论:这场以电力市场结构的拆分和重组为特点的"厂网分开,竞价上网"的电力体制改革,如果不能真正减少电力行业的垄断成本,在最终的销售电价没有受到严格规制的情况下,改革虽然有助于控制电力这个高额垄断行业的垄断利润,但是却并没有降低销售电价和提高消费者剩余,因而社会福利在一定程度上反而恶化了.     

Stackelberg竞争条件下的最佳福利关税与最大收入关税

文章考察Stackelberg竞争条件下的最佳福利关税与最大收入关税。分析表明,最佳福利关税与最大收入关税的相对大小主要取决于产品之间的相互关系和国内外企业的成本差异。当产品是互补品时,最佳福利关税总是小于最大收入关税;当产品是替代品时,最佳福利关税与最大收入关税的关系,既取决于产品间的替代程度又取决于国内外企业间的成本差异。产品的替代程度较弱时,最大收入关税总是大于最佳福利关税;产品的替代程度较强时,若国内外厂商间的成本差异越小,则最佳福利关税越有可能超过最大收入关税。     

Foreign Direct Investment and Technology Transfer Under Uncertainty in a Liberalizing Host Economy

This paper tackles the issue of investment and optimal ‘choice’ of market structure for a foreign multinational enterprise (MNE) in a newly liberalized economy under uncertainty and in the presence of sunk costs. A minimalist duopolistic model is developed whereby a foreign investor's subjective belief about the probability distribution of policy uncertainty is endogenized as a function of the aggregate output in the tradable goods sector. The main propositions derived from the model are consistent with some unconventional empirical findings in the literature on Foreign Direct Investment (FDI), technology transfer to and crowding out of domestic firms in LDEs.     

Entry Invitations in a Market with Network Effects

Abstract

This paper reinvestigates the well-known claim by Economides (1996) that the network effects can lead a monopolist to give away its technology for free. This so-called ‘open’ strategy is likely to be adopted when marginal network effects are strong but not too strong relative to marginal price effects. Highly elastic demand and highly convex costs also increase the likelihood of such a strategy. I first study the case in which the post-entry market structure is of the Cournot type and later compare the results with the Stackelberg case.