互联网平台垄断与低质量陷阱

坚定不移地走高质量发展道路，已经成为各领域发展的共识。然而，随着互联网平台经济的飞速发展，线上市场中的低质量问题也变得愈加突出，相比线下市场，线上市场同类产品不合格率、不达标率、投诉量更高。文章认为平台垄断是低质量陷阱产生的主要原因，超级互联网平台的价格垄断、流量垄断和渠道垄断行为，一方面形成了对低成本实体经济需求的"扩张效应"，即低价垄断迫使实体企业降低产品质量成本；另一方面形成了对高质量产品的"挤出效应"，即流量垄断带来的高额流量费用，迫使实体企业将大部分资金用于线上市场产品营销，挤出了质量创新投入和渠道垄断形成的巨大规模效应，迫使实体企业将低质低价产品打造成为爆款，保障线上市场销量优势。为此，政府部门需要加大对互联网平台恶性价格竞争的监管和处罚力度，督促互联网平台降低实体企业经营成本，强化互联网平台对实体企业的质量赋能作用。     

Innovation and antibiotic use within antibiotic classes: Market incentives and economic instruments

We analyze a monopolist's incentive to innovate a new antibiotic which is connected to the same pool of antibiotic treatment efficacy as is another drug produced by a generic industry. We outline the differences of antibiotic use under market conditions and in the social optimum. A time- and state-dependent tax-subsidy mechanism is proposed to induce the monopolist and generic industry to exploit antibiotic efficacy optimally.     

REGULATION STRATEGIES FOR THE PROVISION OF PATERNALISTIC GOODS

In this study, we analyze the regulation of markets for the provision of services whose costs are subsidized for paternalistic reasons. We model the choice of a benevolent regulator who wants to maximize consumer welfare in a setting where quality cannot be verified and the good provided is fully subsidized. The choice is thus made between two types of providers (profit maximizers and altruistic providers) and two frameworks (monopoly franchise and quality competition). Our analysis shows that in this environment the performance of mixed markets is always dominated by pure forms. Moreover, although making efficient providers compete for the market minimizes cost, the choice of quality competition with altruistic providers may be preferable from a welfare point of view whenever service quality is relevant and the productivity differential is not substantial.     

强化我国垄断企业成本监审的思考

我国的垄断企业凭借其行业地位,获得大大超过平均利润的高额利润,这引起人们的广泛关注,并成为社会的一个热点问题,也是一个亟待解决的重大社会经济问题。为提高垄断企业经营成本的透明度,本文通过研究现行成本监审的实际情况及分析存在的问题,提出改进现状的建议。     

To Bundle or Not to Bundle: Firms’ Choices under Pure Bundling

We examine the economic implications of pure bundling under the settings of monopoly and duopoly. We show that under monopoly and pure bundling of goods with independent demands, the bundled price is strictly less than the sum of the unbundled prices. In the setting of duopoly and Nash prices, we examine whether bundling can be used as a tool to deter entry. In contrast to the findings of previous studies, we show that with low entry costs, entry is deterred by unbundled as opposed to bundled sales. With high entry costs, however, the incumbent chooses to bundle.     

Planned obsolescence and monopoly undersupply

This paper examines the welfare implications of planned obsolescence in situations where the traditional monopoly undersupply exists. We find that the monopolist’s introduction of incompatibility between successive generations of products alleviates the monopoly undersupply problem and may therefore generate higher social welfare than compatibility. Paradoxically, the stronger the network effects, the more likely welfare will increase as a result of incompatibility. Our result also extends to two-sided markets characterized by indirect network effects.     

Innovation and antibiotic use within antibiotic classes: Market incentives and economic instruments

We analyze a monopolist's incentive to innovate a new antibiotic which is connected to the same pool of antibiotic treatment efficacy as is another drug produced by a generic industry. We outline the differences of antibiotic use under market conditions and in the social optimum. A time- and state-dependent tax-subsidy mechanism is proposed to induce the monopolist and generic industry to exploit antibiotic efficacy optimally.     

浅谈行政垄断

行政垄断是凭借行政权力形成的垄断，其目的是获取高额利润。行政垄断严重损害了消费的合法权益，破坏公平竞争，妨碍社会资源的优化配置，是一国家经济和社会进步的最大障碍。     

《共产党宣言》中无产阶级自由发展思想研究

马克思在《共产党宣言》指出了无产阶级的自由是从实践的革命斗争中实现的,因而也是科学的真正的自由。     

打破我国出口信用保险垄断模式的思考

本文从我国出口信用保险的发展现状出发,借鉴国际经验,针对我国国情,对其中已符合市场化运作条件的短期出口业务,分析其商业化优势并思考解决策略及具体步骤。在保持中国信保现有的行业主导模式下,若能针对其中已经发展比较成熟而符合市场化运作条件的短期业务部分,放开一部分市场进入壁垒,允许有条件经营这部分业务的商业保险公司针对严重供需不平衡的中小企业拓展业务,将开发巨大的潜力市场,增进社会福利。