Bundled Discounts, Leverage Theory, and Downstream Competition

Under plausible circumstances, a monopolist in one market canuse its control of prices in that market to force competingdownstream buyers to sign tying contracts that will lever itsmonopoly into another market. Specifically, the monopolist ofthe tying good can place each downstream buyer in a prisoner'sdilemma by offering them more favorable pricing on the tyinggood if they sign a requirements-tying contract covering thetied good. Since a buyer benefits on receiving more favorablepricing on the tying good and the competitors do not, and suffersif the competitors receive more favorable pricing on the tyinggood and the buyer does not, buyers will sign the tying contracteven when they would earn higher profits if they all refusedto sign. This enables a monopolist in one market to inefficientlyexclude an entrant in another market.     

美国数字电视专利分析

一、问题 美国数字电视专利近几年一直是家电业普遍关注的问题,也是媒体的热点话题.美国市场作为全球市场的前沿和制高点,其数字电视(Digital Television 以下简称DTV)的发展进程备受关注也是理所当然.     

Death following injection sclerotherapy due to phenol toxicity

Prolapse rectum (PR) or protrusion of the rectum beyond the anus occurs frequently in populations at both extremes of age. In the pediatric population, in developed countries, the commonest cause for PR is thought to be cystic fibrosis (CF). Treatment options for CF include conservative management, surgical resection and fixation, suturing, and injection sclerotherapy (IS). The last is considered an attractive treatment option because it is minimally invasive. In this case report, the authors present the details about a 2-year-old female child, with PR and CF, who died after IS, using phenol as the sclerotherapeutic agent. Autopsy findings and toxicology tests performed to establish phenol toxicity are documented. The available literature is reviewed. This case report underscores the risks of using phenol for IS and emphasizes the point that the procedure is not innocuous and an adverse outcome including fatality is a possibility.     

How leadership enhances employees’ knowledge sharing: the intervening roles of relational and organizational identification

Knowledge exchange among employees is crucial to organizational effectiveness. Leadership can enhance or detract from employees’ willingness to share knowledge. This study examines how leadership affects knowledge sharing in a knowledge-intensive work setting. It proposes and tests a model which posits that (1) transformational leadership affects the extent to which employees identify with their manager; (2) this relational identification, mediated by the quality of LMX (Leader-Member Exchange), leads to greater identification with the organization and its goals, which in turn results in greater knowledge sharing. The sample consisted of two hundred and three R&D employees engaged in advanced technological projects. Path analysis results indicated that there are both direct and indirect (through LMX) relationships between transformational leadership and relational identification: relational identification promotes organizational identification which, in turn, is positively related to knowledge sharing. These results highlight the importance of transformational leadership and LMX for promoting relational and organizational identification, thereby facilitating employee knowledge sharing.