Referrals in search markets

This paper compares the equilibrium outcomes in search markets with and without referrals. Although it seems clear that consumers would benefit from referrals, it is not at all clear whether firms would unilaterally provide information about competing offers since such information could encourage consumers to purchase the product elsewhere. In a model of a horizontally differentiated product market with sequential consumer search, we show that valuable referrals can arise in the equilibrium: a firm will give referrals to consumers whose ideal product is sufficiently far away from the firm's offering. We allow firms to price-discriminate among consumers, and consumers to misrepresent their tastes. We found that the equilibrium profits tend to be higher in markets with referrals than in markets without. Consumers tend to be better off in the presence of referrals when search costs are not too low, and under a certain parameter range, referrals lead to a Pareto improvement.     

Ordered search in differentiated markets

This paper presents an ordered search model in which consumers search both for price and product fitness. I construct an equilibrium in which there is price dispersion and prices rise in the order of search. The top firms in consumer search process, though charge lower prices, earn higher profits due to their larger market shares. Compared to random search, ordered search can induce all firms to charge higher prices and harm market efficiency.     

Vertical contracts in search markets

This paper studies a simple model to underline the importance of consumer search for understanding wholesale contracts between manufacturers and retailers. The model has one manufacturer and two retailers who compete in a homogeneous goods market where the wholesale contract is unobserved by consumers. If the manufacturer is in the position to offer two-part tariffs, the model without search either does not have an equilibrium wholesale contract (if retailers hold passive beliefs) due to the well-known opportunism problem or it is characterized by the absence of a fixed fee (when retailers hold symmetric beliefs). With consumer search, an equilibrium wholesale contract always exists (even if retailers hold passive beliefs) overcoming the opportunism problem and is always characterized by some fixed fee. If the manufacturer offers linear wholesale contracts, the differences between the models with and without consumer search are less pronounced, but remain even if the search cost vanishes. Thus, the vertical contracting literature cannot simply ignore search costs by saying that they are probably small and can therefore be neglected.     

Publication of Information and Market Response: The Case of Airline on Time Performance Reports

This paper investigates market response to publication of on time performance information. Theory suggests that reduction in search costs generates more honest airlines and better quality service, a distribution of price-quality bundles, increased demand, exit by inefficient airlines and reduction of price rigidity. An ARIMA study of U.S. domestic airline operations finds that after publication of performance information the market generated better performance, increased quality distribution, enhanced demand, exit by four of fourteen airlines and reduced price-quality rigidity. Publication of information may improve performance in markets characterized by asymmetric information and high search costs.     

The role of institutional arbitrage in the search for product innovation: Firm level evidence from Norway

Evolutionary theorizing conceptualizes the discovery of new products as a successful outcome from searching for innovation in which firms combine new and old knowledge and resources. Prior research has shown that the propensity for discovering new products is greatest when firms cross a technological and/or organizational boundary in the search for new knowledge. In this paper, we add a new dimension to this literature: we examine whether, and to what extent, crossing a national boundary, as when firms use knowledge from network partners in foreign countries, influences the likelihood that firms will introduce new products into the market. Drawing on theorizing on institutional arbitrage in the literature on national innovation systems (NIS) and varieties of capitalism (VOC), we propose that companies that cross a national boundary in searching for innovation are significantly more likely to introduce new products. Detailed survey data on firms; data on their network partners, including their location; and regression analysis show that the use of knowledge from actors in foreign NIS has a positive influence on product innovation.     

Quality certification vs. product traceability: Consumer preferences for informational attributes of pork in Georgia

Consumer willingness-to-pay for informational attributes of food products is important information for food producers and supply chain participants and policy makers. We examine consumer demand in the pork sector of the Republic of Georgia. Results of conditional and mixed logit estimation, conducted on choice experiment data, reveal that Georgian consumers treat quality certification and product traceability attributes as substitutes. We also find that producers and other supply chain participants should be concerned primarily with maintaining the appearance of pork products. Retailer specific factors such as location and type of outlet can also substitute for product traceability. Store location and product appearance, however, are complementary attributes. In light of the recent turbulence in Georgia these consideration may be of paramount importance as participants in the supply chain seek to rebuild damaged infrastructure.     

质量检验信息系统在产品监督检验中的应用

介绍了产品质量检验信息系统的研究开发及实施情况.认为该系统的开发保证了产品质量监督检验工作的公正性,提高了管理水平和工作效率.     

On the desirability of an efficiency defense in merger control

We develop a model in which two firms that have proposed to merge are privately informed about merger-specific efficiencies. This enables the firms to influence the merger control procedure by strategically revealing their information to an antitrust authority. Although the information improves upon the quality of the authority's decision, the influence activities may be detrimental to welfare if information processing/gathering is excessively costly. Whether this is the case depends on the merger control institution and, in particular, whether it involves an efficiency defense. We derive the optimal institution and provide conditions under which an efficiency defense is desirable. We also discuss the implications for antitrust policy and outline a three-step procedure that takes the influence activities into consideration.     

Channel coordination with the newsvendor model using asymmetric information

In this paper, after surveying short-term two-echelon supply channel coordination methods, we present an extended version of the newsvendor model in which the supplier has to fulfil all demand of the customer, even if this calls for an additional setup of production. Given uncertain demand forecast, the solution is an optimal production quantity that minimises the expected total cost including setup, inventory holding and obsolete inventory costs. Then, the model is studied in a decentralised setting where the customer has private information about the demand forecast, while the supplier knows the various cost factors. We suggest such a coordination protocol and payment scheme that provides both partners the right incentive for minimising the total cost: the customer is interested in sharing her unbiased demand forecast and uncertainty, while the supplier's rational decision concurs with the overall optimum. Hence, local decisions based on asymmetric information coordinate the channel in the global sense. The results are also demonstrated by taking some real-life test cases from an industrial study that motivated our work.     

Group identity in markets

We present a laboratory experiment that measures the effects of group identity—one's perceived membership in social groups—on market transactions in an oligopoly market with a few sellers and buyers. We artificially induce group identity using art preferences and college majors in different treatments, respectively. Subjects are randomly assigned into the roles of buyers and sellers and interact repeatedly. We find that the presence of groups influences both the selection of trading partners and the determination of prices. All else equal, sellers are more likely to make offers to ingroup buyers, and the buyers are more likely to accept offers from ingroup sellers. There are considerable intergroup price differentials with the outgroup sellers charging a lower price than the ingroup sellers.     

Vertical mergers in procurement markets

This paper uses computational methods that reveal ambiguous strategic effects of vertical mergers in a duopoly setting featuring incomplete information about sellers' costs, and differences in sellers' productive capabilities. First, vertical mergers can be jointly unprofitable. Second, the buyer's preferred merger partner is almost always the seller with lower expected costs, and is typically the larger seller. Third, vertical mergers always reduce the unintegrated seller's profits, sometimes dramatically. Finally, vertical mergers can increase total welfare. Some of the results contrast qualitatively with unambiguous findings from models with symmetric sellers, which suggests that caution should be used in drawing general inferences from those models.     

Intellectual capital in business-to-business markets

This paper reports on research concerning the level of knowledge assets possessed by firms in business-oriented vs. consumer-oriented industries. Further, the research also covers the level of competitive intelligence activity in these industry groups, estimating the level of interest of competitors in acquiring another firm's knowledge assets. From this information, we can begin to develop ideas about what types of firms and industries can really benefit from knowledge management systems and investment, as well as which can benefit from knowledge protection systems. As a result, the issues of knowledge management and knowledge protection become much more strategic and more obviously dependent on circumstances. Such a conclusion begs the question of what measures will help us to determine important circumstances and optimal knowledge strategies for competitive advantage, clearly opening up the field to a wide range of future research streams.     

施工质量成本管理中运用信息技术的研究

建筑企业应用计算机辅助管理，是清除质量成本管理的实践阻碍、解决问题的必要措施和条件之一。在施工质量成本管理中运用信息技术，有利于解决质量成本管理的操作性问题，有利于将质量成本管理纳入企业管理信息系统，有利于实现知识管理，有利于提高管理透明度和提升基础管理工作等。     

Reducing overreaction in contract markets

Predicting market share can be difficult for industrial firms whose sales occur in the form of a few large contracts received at irregular intervals during the course of a year. This article discusses the problems that this type of sales pattern may cause and provides a solution for determining probabilistic share forecasts.     

Switching costs in local credit markets

Switching costs are a key determinant of market performance. This paper tests their existence in the corporate loan market in which they are likely to play a central role because of the complexity of contracts and the relevance of informational problems. Using very detailed data at bank-firm level on four Italian local credit markets we empirically show that firms tend to iterate their choice of the main bank over time. This inertia is not related to unobserved and time invariant firms' preferences across banks and can be attributed to the existence of switching costs. Moreover these costs are higher for single-bank firms. We also offer evidence that banks price discriminate between new and old borrowers by charging lower interest rates to the former in order to cover part of the switching costs. The discount amounts to about 44 basis points and is equal to 7% of the average interest rate. These results prove robust to a number of other potential identification drawbacks.     

Predatory reputation in US airline markets

Despite its long history in antitrust policy, predation remains a poorly understood phenomenon. The main difficulty is in empirically identifying predatory intent. I propose a method for measuring the effect of reputation, whose significance would enable us to infer predatory intents. Maximum likelihood estimation using simulated annealing algorithm is conducted with a sample of US airline markets. The results provide some support for the presence of entrants learning and reputation effect. As an application, I discuss how the outcomes of my empirical model could help analyze such antitrust cases as the American Airlines Case.     

钻井队物资质量管理信息系统的设计与实践

钻井企业生产用物料量大、种类多、价值高,使得钻井物料管理难度大、成本高,质量跟踪管理存在滞后与空白。钻井队物资质量管理信息系统对钻井过程中物料管理数据特性进行了研究,采用钻井队现场物料信息电算化的管理思想和面向对象设计的方法,基于SQL Anywhere数据库与mobile link服务器快速数据交换技术,设计实现了一个钻井队现场物资质量管理信息系统,并给出了系统的面向对象分析设计模型和系统组成模块。钻井队物资质量管理信息系统的应用,能对钻井队物料进行有效地管理,并为加强钻井队生产用物资的质量管理打下坚实的基础。     

Can Quality Certification Lead to Stable Cartels?

Cartel stability is investigated in a context of adverse selection whereconsumers are imperfectly informed about product quality. Producer collusionmay be necessary to signal quality via third-party certification. Whileexamining different cost structures for third-party certification, we showthat a stable cartel that provides information about product quality mayimprove overall welfare even if producers collude to reduce competition.     

Regulation and innovation in 5G markets

This article examines the roles and consequences of different approaches to 5G market design for innovation. The analysis is grounded in a conceptual framework that explicitly considers the complementarities among networks, applications, and services. Good policy arrangements align the legal and regulatory framework with the technical and economic characteristics of the sector and the broader, social visions for new technologies. Because the future development of 5G technology and markets is open-ended, policy has to be developed with incomplete knowledge and under conditions of uncertainty. These circumstances call for adaptive forms of policy and a focus on the creation of guardrails for market players, backed up by regulatory powers to intervene more directly if necessary. In the technologically dynamic 5G system, multiple stable policy constellations are feasible, but they likely will result in divergent outcomes and performance characteristics. Monitoring of the experience with different national and international developments will facilitate global learning and the incremental improvement of policy frameworks.