Competition in the Korean Internet Portal Market: Network Effects, Profit, and Market Efficiency

Internet portals serve as platforms for coordinating advertisements, content, and user markets. We model portal structure with South Korean market data to explain network effects and other competition factors. We also analyze network effects on profit and market efficiency. The results indicate a negative network effect from banner advertisements in the user market, which is countered by a network effect from content provision. In the advertising market, the network effect from user demand is positively identified, which explains profit making through increased user visits. Furthermore, we show that network effects due to market concentration result in increases in consumer surplus.     

Is Competition Such a Good Thing? Static Efficiency versus Dynamic Efficiency

Review of Industrial Organization - This paper addresses the rationale for antitrust legislation. It is a striking fact that the legitimacy of antitrust law has been taken for granted inthe United...     

Market Power and/or Efficiency: A Structural Approach

This article separates oligopoly-power and cost-efficiency effects ofchanges in industrial concentration and assesses their impact on output prices in 32 food-processing industries. Empirical results indicate that although concentration inducescost efficiency in one-third of the industries, oligopoly-power effects either dominate cost efficiencyor reinforce inefficiency, resulting in higher output prices in most industries. The articlealso provides fresh econometric estimates of oligopoly power and economies of size for the industriesin question.     

X-Inefficiency,Competition and Market Information

Whether competition forces firms toward efficient behaviour is an open question. We consider a duopoly with firms run by managers and affected by adverse selection on costs. In contrast to recent literature, we point out that, to have a genuine effect on firm X-inefficiency, competition must change managerial incentives. By introducing the availability of some signal on the rivals' behaviour we show that, if costs are correlated, the contractual use of that signal can render private managerial information uninfluential. This result stresses the informational role of the market and suggests scope for future work.     

Optimal Selling Mechanism,Auction Discounts and Time on Market

This article examines the optimal selling mechanism problem in real estate market using mean‐variance analysis and downside risk analysis. When sellers can choose between accepting the first offer above a reservation price or auctions (waiting an optimal and fixed time), sellers having higher risk aversion choose auctions and wait a fixed time while sellers having lower risk aversion choose an optimal reservation price and wait a random time. Positive auction discounts are compensated by reduced risks, and there exists a connection between liquidity risk and conditional auction discount. More (Fewer) sellers will choose to sell their houses through auctions in a hot (cold) market or when holding cost increases (decreases). When sellers choose auctions, sellers having higher risk aversion who have lower holding cost wait longer and obtain higher sale price. Loss‐averse sellers unanimously choose the mechanism of setting an optimal reservation price.     

Market Mechanism Choice and Real Estate Disposition: Search Versus Auction

We propose a model of mechanism choice in the disposition of real estate assets where we consider two alternatives: a search market and an auction. Within the search framework, we derive an equilibrium whereby buyers incur search costs and sellers incur holding costs for the period during which the property is not sold. In the auction alternative, the seller joins an existing pool of sellers in undertaking a multiple–object auction and pays a commission upon sale. Buyers and sellers freely choose their mechanisms, which in equilibrium are optimal given each group's conjectures about the mechanism choice of their counterpart. In equilibrium, an agent cannot benefit from deviating from his choice and each agent's beliefs are consistent with the equilibrium outcome. It is shown that (a) buyers with high search costs will choose auctions because the auction payoff imposes an upper bound on buyers' gains from search, and (b) prices at auctions will be higher. Using vacant lot sales data and a method–of–moment estimator which accounts for the presence of an endogenous discrete mechanism choice variable, we estimated a hedonic regression to detect the price effect. It was determined that, on average, lots sold for $1.44 per square foot more in auctions than in the search market, as predicted by our model.     

Catch Animal Spirits in Auction: Evidence from New Zealand Property Market

Following the animal spirits theory proposed by Akerlof and Shiller, this article contributes to behavior economics by investigating the possibility of using auction sales data to capture evidence of irrational exuberance in the housing market. Using the monthly percentages of residential property auction sales for Auckland, Wellington and Christchurch regions in New Zealand from 2006 to 2015, and the exuberance testing method proposed by Phillips, Shi and Yu, we find that animal spirits have been developing in the Auckland housing market since 2013, but not in other regions. When compared to the results based on price‐to‐rent ratios, auction sales provide more meaningful results for identifying market‐wide irrational exuberance at an early stage. The causality test on price‐to‐rent ratios and auction sales volume shows that asset prices and animal spirits influence each other in the short run. In the long run, prices have significant effect on animal spirits, but not vice versa.     

审计市场中的合并、产业专用化投资和价格竞争

本文从产业组织的角度，分析了审计市场的合并、产业专用化和价格竞争等竞争行为，并进一步探讨了这些行为对审计质量和社会福利的影响。本文认为，审计质量的信号传递机制推动了产业中的合并行为，而审计产业的专用化投资行为在于策略性地阻止进入。由于审计产品的异质性、信任品特性以及强大的买方谈判能力使得审计市场存在激烈的价格竞争，而合并和产业专用化投资有助于事务所降低成本。因而，审计市场的竞争提高了社会福利。     

效率、激励和竞争:校企合作动力机制的实证研究——以长三角医疗器械产业为例

校企合作是实现企业创新能力的有效途径,本文通过对长三角医疗器械企业发放问卷进行实证调研,认为长三角地区的医疗器械产业校企合作的现象广泛存在,高校和企业之间形成了良好的互动关系,校企合作的方式主要为员工培训和合作研发,实现合作途径主要是公司采取主动.合作动力主要来自于效率因素、激励机制和竞争因素.民营企业的校企合作动力主要来自于研发成本因素、管理体系因素、政府因素、中介推动因素.     

寡头竞争均衡、效率促进与市场稳定--一个福利经济学视角

多种条件约束决定了真实经济世界的资源配置效率必然偏离古典微观经济学完全竞争均衡模型关于效率问题的推演逻辑。短期边际成本定价趋势与固定成本长期补偿之间的矛盾决定了完全竞争均衡结构内生着不稳定性。“产品竞争度周期假说”在一定程度上证伪了传统的市场结构进化理论。寡头结构有寡头垄断均衡和寡头竞争均衡之别,后者作为市场结构自然演化的结果,能够增进组织绩效和提高行业效率,并实现市场稳定。因此,市场行为基础上自然演进的行业集中度提高是有益的。市场从竞争到垄断都不惠顾社会公平问题。市场结构、组织效率与经济稳定之关系研究无论对产业组织理论创新还是对产业政策制定来讲都具有重要的现实意义。     

以质量求生存 靠质量闯市场 视超越为目标 凭实力创辉煌

全面、系统地阐述了长庆石油勘探局的质量管理工作，即：建立和完善质量管理规章制度；作宣贯和质量体系认证；加强施工过程质量控制；实施产品质量的网络动态管理；实施品牌战略；实行用户质量回访质量。并就如何进一步开展质量管理工作进行了探讨。     

Competition,Prices and Quality in the Market for Physician Consultations

Prices for consultations with General Practitioners (GP's) in Australia are unregulated, and patients pay the difference between the price set by the GP and a fixed reimbursement from the national tax‐funded Medicare insurance scheme. We construct a Vickrey‐Salop model of GP price and quality competition and test its predictions using individual GP‐level data on prices, the proportion of patients who are charged no out‐of‐pocket fee, average consultation length, and characteristics of the GP's, their practices and their local areas. We measure the competition to which the GP is exposed by the distance to other GP practices and allow for the endogeneity of GP location decisions with measures of area characteristics and area fixed‐effects. Within areas, GP's with more distant competitors charge higher prices and a smaller proportion of their patients make no out‐of‐pocket payment. GP's with more distant competitors also have shorter consultations, though the effect is small and statistically insignificant.     

An Analysis of Resolution Trust Corporation Transactions: Auction Market Process and Pricing

This article describes the operations of the Resolution Trust Corporation (RTC), examines the procedures it employs to resolve distressed Savings and Loan scenarios and investigates the pricing of transactions undertaken by the RTC. The RTC has been criticized for allegedly transferring properties to acquirers at "bargain" prices. The transactions involving publicly traded acquirers in RTC sales are examined from an auction theory perspective. Overall, there is little evidence that winning bidders experience stock price gains. There are, however, subsets of bidders for which the outcomes are predominantly negative. The only category of transactions which provide statistically significant gains to acquirers are Insured Deposit Transfers.     

Product Market Competition,Executive Compensation,and CEO Family Ties

Review of Industrial Organization - This paper analyzes the interaction between product market competition and family ties on the structure of CEO pay, in a panel of publicly listed family firms....     

Digging Deep to Compete: Vertical Integration,Product Market Competition and Prices

This article establishes a causal effect of product market competition on vertical integration. I exploit a hitherto unexplored natural experiment in the U.S. coal mining industry and a unique mine‐level organizational data set. Following an exogenous increase in product market competition, the incidence of vertical integration fell by 33% within the treatment group relative to the counterfactual. I find novel evidence that transition to the lower degree of vertical integration is driven by competition's reducing market prices by 32% which decreased the incentive to conduct vertical mergers. I discuss several possible interpretations of these changes.     

中国市场结构和市场绩效关系实证研究--从消费者角度识别两者的关系

本文利用我国44个行业中的367家企业共计103616位消费者的满意度数据，以及这44个行业的产业集中度数据，通过结构方程模型，实证研究了我国市场结构和市场绩效之间的关系。研究结果表明，与美国等西方国家不同，处于市场经济条件下转型过程中的中国市场，主要是市场绩效决定市场结构，而不是市场结构决定市场效率。     

Real Estate Brokers, Nonprice Competition and the Housing Market

Given a fixed commission rate and easy entry, economic profits must be competed away on some nonprice margin in the real estate brokerage market. This paper focuses on nonprice competition in the level or quality of services offered buyers and sellers in the market, examining the equilibrium adjustment process, comparative static predictions and efficiency implications. In contrast with earlier studies focusing on wasteful advertising, this paper demonstrates that higher commission rates can either increase or decrease deadweight loss, depending upon how broker services affect buyer and seller transaction costs.     

Real Estate Investments,Product Market Competition and Stock Returns

By limiting operating flexibility, real estate investments are found to increase firm risk, thus expected returns. This study introduces product market competition as a critical determinant of the relation between real estate investments and stock returns. As part of capacity strategies, these investments are generally associated with increased market power and lower cash flow volatility in oligopolistic industries. I present a simple model of oligopolistic competition showing a negative relation between real estate holdings and firm beta, and empirically confirm this prediction. Controlling for product market competition enhances identification of the endogenous relation between real estate investments and stock returns.     

Group Profit,Market Share and Efficiency: Evidence from Australian Manufacturing

This paper explains the intra-industry variations of profit in Australian manufacturing. Considering three groups of firms, viz leading, secondary and follower groups, a profit model is developed for each group. Indicators of ``strategic behavior' and ``efficiency' are considered along with other control variables. Both equilibrium and dynamic versions of the model are tested using unpublished data at the enterprise level between 1977/78 and 1992/93. The findings support the importance of both strategic behavior and efficiency in determining group profits.