专利技术垄断、仿冒进入与政府管制政策

文章通过构建政府、正版厂商与仿冒厂商三者之间的Stackelberg博弈模型,并考虑仿冒品厂商的市场结构特征和性质,探讨了仿冒厂商进入条件下正版厂商的竞争行为、策略以及社会福利水平的变化.经研究发现:(1)市场中有仿冒厂商进入且政府稽查力度较弱的情况下,正版厂商总会选择大于独占均衡时的产出数量作为竞争的最优策略,并且,正版品的市场均衡价格要低于正版品独占时的市场均衡价格;(2)仿冒品和正版品之间具有相互替代性,但替代程度不同,仿冒品对正版品仅能部分替代,正版品对仿冒品产生完全替代作用;(3)仿冒品的存在有可能对正版厂商的利益产生正面的影响和作用;(4)在没有考虑政府管制成本的情况下,政府采取对仿冒品不予追究,或者采取严格的查处力度都会提高社会的福利水平.     

Sticky Norms,Endogenous Preferences,and Shareable Goods

The Internet has reduced the cost of borrowing and lending “shareable goods,” including tools, gear, toys, lodging, and vehicles. Online platforms can better match people with underutilized goods, but it may take time for people to develop sticky norms and endogenous preferences that are conducive to greater peer-to-peer sharing. This study estimates the current and potential value of sharing items across households. Data from the General Social Survey, the website NeighborGoods, and a new survey show that peer-to-peer borrowing is already worth at least $179 a year for 30% of Americans. Spending on shareable goods provides an upper bound on the potential gains from sharing. The consumer expenditure survey reveals that the average household spends $9,090 each year on shareable goods. Private vehicles account for 80% of these expenses, which suggests that the largest opportunities may be in greater car-sharing and ride-sharing.     

Nudging Merit Goods: Conceptual,Normative, and Practical Connections

Abstract

Mainstream economics has traditionally maintained a respect for preferences and the choices that individuals make based on them. But recent advances in psychology and behavioral economics have led scholars and policy-maker to doubt if people make wise choices in their own interests. Based on this, libertarian paternalists endorse choice interventions—nudges—designed to steer people to decisions that will better promote their interests. However, the complex, multifaceted, and subjective nature of interests implies that policy-makers are imposing externally chosen interests for people’s own when designing nudges. In this sense, policy-makers are treating the interests they choose to advance like merit goods as described by Richard Musgrave, goals or ends that are explicitly judged by policy-makers to be worth advancing even if they are not ranked highly or chosen consistently by individuals themselves. This paper will make explicit the conceptual and normative connections between nudges and merit goods, arguing that nudges can be considered delivery mechanisms for merit goods, and recommending that libertarian paternalists abandon their claim to be advancing people’s true interests and instead adopt the objective theories of good used to justify merit goods.     

Wicksell, Lindahl and the Theory of Public Goods

Wicksell's and Lindahl's ideas on public goods and decisions are reviewed in light of later developments in the theoretical economics literature. I begin by discussing their normative ideals, in particular the notion of justness, and the sources of the difficulties in reaching them. Wicksell's and Lindahl's ideal states, as well as the obstacles that they perceive, are compared to more recent views on free riding and on the behavior of elected representatives. Their views on political bargaining are then related to later concepts, in particular to the core of the economy.     

国际合作、外部性与全球性公共品融资

全球性公共品存在供给不足,而融资是其中的一个重要环节。从全球性公共品融资的特点与存在的问题、国际合作的视角、外部性观点出发,分析了全球性公共品融资的相关机制,对目前的融资状况作了简要评论。     

Hiding in Plain Sight: A Note on Public Goods,Information Technology,and Productivity

This research note advances a conjecture that may help to explain the “paradox” of productivity and information technology (IT). Conventional measures of the economic output of the IT sector may substantially understate the actual value of IT because software is a public good, which is largely unpriced. I provide a simple exploratory calculation that lends plausibility to this explanation. I hope that this conjecture may inspire research by those with greater expertise in the evolution of software.     

Neighbors' Income,Public Goods,and Well‐Being

How does neighbors' income affect individual well‐being? Our analysis is based on rich U.S. local data from the Behavioral Risk Factor Surveillance System, which contains information on where respondents live and their self‐reported well‐being. We find that the effect of neighbors' income on individuals' self‐reported well‐being varies with the size of the neighborhood included. In smaller areas such as ZIP codes, we find a positive relationship between median income and individuals' life satisfaction, whereas it is the opposite at the county, MSA, and state levels. We provide evidence that local public goods and local area characteristics such as unemployment, criminality, and poverty rates drive the association between satisfaction and neighbors' income at the ZIP code level. The neighbors' income effects are mainly concentrated among poorer individuals and are as large as one quarter of the effect of own income on self‐reported well‐being.     

Strategic Complements, Substitutes, and Ambiguity: The Implications for Public Goods

We examine the effect of ambiguity in symmetric games with aggregate externalities. We find that ambiguity will increase/decrease the equilibrium strategy in games with strategic complements/substitutes and positive externalities. These effects are reversed in games with negative externalities. We consider some economic applications of these results to Cournot oligopoly, bargaining, macroeconomic coordination, and voluntary donations to a public good. In particular we show that ambiguity may reduce free-riding. Comparative statics analysis shows that increases in uncertainty will increase donations, to a public good. Journal of Economic Literature C72, D81, H41.     

公共物品、分工演进与经济增长

在新兴古典经济学框架内,公共物品既能通过提高交易效率来促进分工演进并最终带来经济增长,也可通过改善劳动效率直接促进产出的增加,经济增长中的两难冲突发生于专业化经济和公共物品对劳动时间这一资源的争夺,资源的最终分配取决于三个重要的经济参数即专业化经济系数、公共物品的交易效率系数和劳动效率系数的大小和变化情况。文章最后从历史经验的角度来论证主要结论的正确性。     

财政分权、公共品供给与城乡收入差距

基于1994年～2004年间省级面板数据的估计结果显示,农村公共品供给增加对降低城乡收入差距有显著的作用.而地区间预算外收入和宏观税负的提高都是拉大城乡收入差距的因素.财政分权程度、政府财政支出的结构也对城乡收入差距有显著的影响.另外,中国持续扩大的城乡收入差距与农村发展落后有关,城市化未能带来城乡收入差距的缩小.     

Regulatory Federalism and Workplace Safety: Evidence from OSHA Enforcement, 1981–1995

The Occupational Safety and Health Act (OSH Act) gives states the option to enforce federal occupational safety and health standards on their own instead of relying on the federal Occupational Health and Safety Administration (OSHA). This legislative provision provides an opportunity to analyze a homogenous set of regulatory standards enforced by heterogeneous agents engaged in interjurisdictional competition. This study finds important differences in the effectiveness of enforcement options measured by occupational mortality. State-administered OSHA programs are associated with fewer workplace fatalities than states regulated at the federal level. This finding is consistent with regulatory federalism and government-as-facilitator models of OSHA enforcement.     

融资激励和融资约束对PPP模式下公共产品提供效率的影响——基于不完全契约理论的一般均衡分析

通过构建不完全契约理论下的一般均衡模型,对比分析了PPP模式中的融资约束和融资激励对公共产品提供效率和社会福利的影响,并探讨了融资约束条件下的效率损失。结果显示:私人融资的专业性可以提高公共产品合意程度,但是私人部门的融资约束会抵消其专业性带来的好处,导致社会福利损失。最后针对民营企业参与PPP项目对政府提出建议:必须打破融资约束和制度歧视,完善和规范金融市场,在公平、竞争的市场环境下引入专业机构参与公共产品提供的各个领域。