市场结构与横向产品差别化的相互关系分析

产品差别化对市场结构的形成有很大的作用,经典的豪特林模型只得出了产品差别最小化和最大化原则,由此模型得到的市场结构为完全竞争市场和寡头垄断市场,但垄断竞争市场却无法得到。文章在豪特林模型的基础上构造出统一框架,不但分析产品最大和最小差别情况,而且提出中间程度差别化的分析模型。得出所时应的三种市场结构。尤其是中间程度的差别化对应的垄断竞争市场。对这三种市场结构进行社会福利分析,得出在消费者不同质时,相对于完全竞争市场,垄断竞争市场是相对较好的选择。     

产品差异竞争:广告、品牌和服务

差异性使消费者对不同企业的产品有着不同的偏好,进而形成和维持顾客的忠实度,降低产品的可替代性.产品差异化是一种重要的竞争模式,形成、保持和发展差异化是需要成本支持的.本文重点讨论产品的显性差异,包括广告、品牌和服务,因为这些差异化可以在瞬间影响消费者的偏好和决策,从而将产品的差异程度"植入"消费者的意识系统中.     

Horizontal Product Differentiation: Disclosure and Competition

This paper studies firms' incentives to disclose horizontal product attributes in a competitive environment. With competition, two elements play an important role: whether (i) firms can disclose only their own product characteristics or also those of their competitors, and whether (ii) competitors can react with their pricing decisions to the type of information disclosed. In all possible cases, full revelation is an equilibrium outcome. More importantly, it is generically the unique equilibrium outcome when (i) advertising is comparative and (ii) prices are also advertised, that is, announced simultaneously with the product information. When advertising is noncomparative or prices are not advertised, many nondisclosure equilibria exist.     

A Dynamic Model of Advertising and Product Differentiation

This paper analyses a differential game of duopolisticrivalry through time where firms can use advertisingand price as competitive tools. Two cases are consideredwhereby: (1) advertising has the main effect ofincreasing market size and firms differ in productionefficiency; (2) advertising has both predatory and cooperativeeffects in a symmetric market. The former shows thatmarket shares and advertising shares are positivelycorrelated and that market size increases with thedifference in firms' relative efficiency. The latterhighlights the differences in the feedback andopen-loop strategies. It is shown that firms' advertisingare strategic complements and that profits are higherin the feedback equilibrium because firms advertise more.The applicability of the model in markets wherefranchise contracts and dealership agreements operateis also discussed.     

Vertical Product Differentiation, Entry-Deterrence Strategies, and Entry Qualities

We analyze the potential entry of a new product into a vertically differentiated market. Here the entry-deterrence strategies of the incumbent firm rely on “limit qualities.” The model assumes quality-dependent marginal production costs and considers sequential quality choices by an incumbent and an entrant. Entry-quality decisions and the entry-deterrence strategies are related to the fixed cost necessary for entry and to the degree of consumers’ taste for quality. We detail the conditions under which the incumbent increases its quality level to deter entry. Quality-dependent marginal production costs in the model entail the possibility of inferior-quality entry as well. Welfare is not necessarily improved when entry is encouraged rather than deterred.     

竞争战略新突破:来自低成本与差异化的融合

本文首先针对传统的三种基本竞争战略理论的不足提出质疑。反驳了低成本与差异化形成竞争优势的难兼容性的论点，提出低成本和差异化融合的四层面分析模型SOD战略模式。SOD战略分析模式的核心在于突破空间层面和时间维度去提高竞争优势的数量、质量以及持续力。而且依据这一理论架构，列举并解析了低成本与差异化融合的应用问题，最后分析培育低成本与差异化融合以形成多样持续竞争优势对中国企业的现实意义，并提出对策和建议。     

Price-Matching Guarantees and Equilibrium Selection in a Homogenous Product Market: An Experimental Study

Price-matching guarantees have been alleged to sustain collusive prices in a homogenous product market. Theories in this literature also suggest that there exist multiple equilibria (i.e., a set of price equilibria between the competitive and the monopoly price) when all sellers adopt these guarantees in such a market. Theoretical prediction in this case fails to pin down the actual behavior of players a priori. This paper illustrates the essential role of controlled experiment in testing the collusive theory of price-matching guarantees and thereby shedding light on the embedded equilibrium selection problem. In particular, this paper studies two highly stylized market models, obtains testable predictions, and lays out the design of the controlled experiment. Results indicate that these guarantees facilitate collusion among sellers and thus solve the equilibrium selection problem considerably. I am grateful to Jim Cox, Martin Dufwenberg, Haimanti Bhattacharya, and the editor of this journal and the two referees for their suggestions. I thank seminar participants at the University of Arizona and North American Economic Science Association meeting at Tucson, 2003 for their helpful comments. A research grant from ESL, University of Arizona, for this project is gratefully acknowledged. I am solely responsible for any remaining errors and omissions.     

Product location choice and firm capabilities: evidence from the U.S. automobile industry

We test theories of product differentiation and firm capabilities using data from the U.S. automobile industry. We find managers introduce new models close to their existing ones but far from rival models. We also find entrants and foreign manufacturers locate models closer to rival models. These results are consistent with both economic models of product differentiation and theories of firm capabilities Copyright © 2000 John Wiley & Sons, Ltd.     

网络效应、消费偏好与标准竞争

完全信息静态标准竞争可能产生三种市场格局：技术标准市场不存在、个体标准并存、强势标准阻止弱势标准进入。强制标准化的错误来自两个方面：选择了错误的个体标准即弱势个体标准的标准化，错误地选择了标准化，即优势个体标准的标准化市场的社会福利低于竞争市场的社会福利。     

企业竞争力研究的新视角:企业在产品市场与要素市场的竞争

本文从研究企业之间的竞争问题入手,分析了企业的竞争者不仅包括产品市场的竞争者,也包括要素市场的竞争者;提出在产品生命周期的不同阶段,企业的主要竞争对手会发生变化。基于上述研究,我们提出企业竞争力可以分为要素市场竞争力、产品市场竞争力、企业运营效率竞争力,这三种竞争力分别从投入、产出、转换三个角度测量了企业的竞争力。在企业竞争力的三个方面,“要素市场竞争力”及“企业运营效率竞争力”是企业竞争力更为重要的两个方面。     

产品价值网络竞争与后发企业追赶策略北大核心

市场环境的复杂引致产品竞争转变为产品价值网络之间的竞争,后发企业的追赶能力依赖于产品价值网络的竞争力。本文基于博弈理论构建了包含后发企业新产品价值网络和在位企业旧产品价值网络的防降价均衡模型。通过数理推导产品价值网络各主体在降价博弈中的行为选择,进而分析后发企业为引导其他主体协同跟进、成功构建和运营新产品价值网络的策略安排。研究表明后发企业应该:(1)提高与模块供应商、互补品提供商的兼容度;(2)提高新旧产品的兼容度;(3)根据市场份额调整产品价格;(4)根据用户规模把控补贴额度和时间节点。研究结论为后发企业通过产品价值网络竞争实现追赶提供了重要见解。最后,结合华为鸿蒙系统案例分析了后发企业追赶策略的实际应用。     

我国移动通信企业竞争模型及其策略——基于产品质量差异的分析

我国移动通信市场呈现典型的双寡头竞争结构。移动通信企业的实际经营状况表明.我国移动通信企业竞争问题不能用经典的伯川德模型解释。在分析影响移动通信市场企业竞争因素的基础上.本文建立了考虑产品质量差异的我国移动通信企业竞争的纳什均衡模型。通过对模型的数值计算与分析,探讨了我国移动通信企业竞争的特征和规律。在运用我国移动通信企业竞争的实际数据进行经验分析并验证了上述竞争模型之后.本文评价和提出了我国移动通信企业的竞争策略。     

On commodity taxation in vertically differentiated markets

We examine the impact of commodity taxation on vertically differentiated product markets when entry is allowed. We show that an ad valorem tax may have a dramatic effect on market structure by inducing the entry of a large number of firms in what was previously a natural monopoly. The producers of high quality products reduce market share after an increase in their unit production cost, leaving more room for lower quality products. While within a given market structure aggregate quality decreases monotonically with the tax rate, quality jumps upwards at tax rates that cause a change in market structure.     

差别化竞争战略与服务增强的内在机理

国内外许多研究者都观察到了制造企业中服务收入占营业收入的比重越来越高、服务的利润贡献越来越大，这一现象即“服务增强”。本文首先将产品界定为既包括有形实体，也包括无形服务的完全产品，然后构造了一个完全信息动态博弈模型来研究这一现象。我们发现，厂商实施服务延伸实体产品差别化的竞争战略，必然导致服务增强的结果，同时，增进厂商利润与消费者总剩余。这一结论，为我国企业通过服务差别化来谋求在全球市场上的可持续竞争优势提供了理论根据。     

Product proliferation strategies and firm performance: The moderating role of product space complexity

In the Spanish automobile market between 1990 and 2000, significant reductions in tariff and nontariff protections increased the complexity of the product space, through the penetration of new car brands and models. Acknowledging these environmental dynamics, this study details conditions in which across‐niche (product breadth or intraindustry diversification) and within‐niche (product depth or versioning) product proliferation exerts a positive relationship on firm performance, as well as how key relationships change according to the complexity of the product space in the industry. Copyright © 2013 John Wiley & Sons, Ltd.     

产品内分工与产品建构陷阱:中国本土企业的困境与对策

本文在产品建构理论(Product Architecture Theory)的基础上,分析了本土企业陷入产品内分工陷阱的根本原因。通过建立包含产品内部界面约束度和产品价值网络紧密度的产品建构函数,提出本土企业在产品内分工体系内部谋求结构升级过程中将面临两类产品建构陷阱,第一类将导致本土企业的产品价值链低端锁定,第二类是引发本土企业系统创新瓶颈的重要诱因。本土企业要避免陷入产品建构陷阱,关键在于技术和组织双重层面的自主创新。在此基础上,给出本土企业摆脱产品建构陷阱和产品价值链低端锁定、提高系统创新能力的政策建议。     

Adoption of Product and Process Innovations in Differentiated Markets: The Impact of Competition

The paper examines the effects of the degree of competition on firms'decisions to innovate in differentiated markets. Firms favor productinnovations if they produce close substitutes (so competition is severe) andfavor process innovations if products are differentiated (so competition isless severe). Assumptions on the strategic complementarity of product andprocess innovations and on the decreasing returns of a product innovationare found to be the critical assumptions in the sense of Milgrom and Roberts (1994).     

Product diversification in international joint ventures: performance implications in an emerging market

This study extends product diversification research to a new organizational form (IJV) and a new environmental context (emerging market). It explores the extent to which product relatedness with both foreign and local parents affects IJV performance as perceived by venture managers. After controlling for relevant variables, analysis of the data containing 134 IJVs in China validates our major premise: the relatedness of an IJV's products with that of its foreign and local parents is positively associated with its performance. An IJV maintaining bilateral related diversification (i.e., with both parents) performs better than a venture maintaining a unilateral related linkage (i.e., with one parent), which in turn outperforms an IJV which is unrelated to either parent. When resource complementarity or goal congruity between parents is higher, there is a stronger positive relationship between product relatedness and IJV performance. When structural opportunities are fewer or institutional deterrence is higher, there is a weaker positive relationship between product relatedness and IJV performance. Copyright © 2002 John Wiley & Sons, Ltd.     

产品标准中的技术要素及技术水平初探

企业产品标准中的技术指标体现了该产品的特点和性能，因此正确和合理地编写产品标准的技术指标，是产品标准起草的关键，也是企业标准水平的主要体现从企业产品标准中的技术方面入手，讨论了科学编写技术指标的重要性。     

Product variety and firm survival in the microcomputer software industry

This article provides an analysis of product variety and scope economies in the microcomputer software industry by using detailed firm‐level and product‐level information on firms' bundling of functionalities over application categories and computing platforms. We find that the management of product variety through the way different application categories are integrated in products and the platforms on which these products are offered can be as important as the significance of scope economies at the more aggregated firm level. Specifically, we find that there is little evidence of firm benefits from economies of scope in production, but there is substantial evidence that products benefit from economies of scope in consumption. In addition, we find that firms with products that encapsulate more application categories perform better, and those with products that cover more computing platforms perform worse. Finally, changes in product variety through new product introductions improve firm performance, but extensions to existing products hinder the performance of the firm and the product. We conclude that research in scope economies can benefit from a more detailed model of the evolution of product variety that includes data and analysis at the firm level and at the product level. Copyright © 2004 John Wiley & Sons, Ltd.