矿业安全与健康供给的社会管制研究

以行政问责、矿产资源整合、区域性停产整顿等方式遏制矿难,见效不大。矿主是安全物品供给主体,但缺乏强迫矿主为矿工提供安全与健康物品的制度安排。只生产矿产品不生产安全与健康物品,让矿工承担成本而矿主增加收入属于市场失灵,市场失灵时的政府管制应定性为保护矿工基本人权的社会管制,必须通过社会管制强迫矿主供给矿工享用的集体物品而阻止矿主的不当收入。     

国外计划报废理论研究综述

国外学者对计划报废理论早已开展了许多富有成效的研究;然而,在国内至今罕有相关方面的文献研究。因此,开展相关研究具有非常重要的理论和现实意义。首先,以iPod为例,引出了计划报废的概念和模型。然后分别从网络外部性与兼容性决策、耐用性决策、新产品引进、技术进步和研发决策等五个方面,对有关研究进行了综述。     

Convergence,technological interdependence and spatial externalities: a spatial dynamic panel data analysis

This study adopts a spatial dynamic panel data approach and spatial quasi-maximum likelihood to re-estimate the speed of growth convergence in 91 countries based on technological interdependence and spatial externalities. We perform a conditional Lagrange multiplier test for spatial error dependence and find some differences to previous studies. First, the switch from a cross-sectional to a dynamic panel data framework enables the estimated rate of conditional convergence to be higher, more accurate and more appropriate for realistic and theoretical expectations. Second, the spatial Durbin model (SDM) is a general form of simplified model that considers spatial error correlation, and its likelihood ratio test for the theoretical model of ‘learning by doing’ effect provides further evidence. Finally, statistical tests find that spatial correlation not only occurs in each variable, but also appears in the error term. Thus, the SDM does not exist in the assumptions associated with the spatial error, which are not necessarily correct.     

The Manager as a Person

Abstract Professor John Roemer has defended a future market socialist order. His model would encompass an egalitarian coupon market for the ownership of firm shares, a private sector for firms below a certain size, a system of public bank loans for the raising of capital, and an industrial policy of differential interest rates for various economic sectors. This paper argues that such a model would generate perverse incentives for firms, shareholders, public officials, and private entrepreneurs. It also argues that Roemer's contention that such a model would produce a more environmentally sensitive polity is problematic.     

系统重要性金融机构的外部性及其宏观效应研究

系统重要性金融机构由于规模和市场关联度的优势,对整个金融体系和实体经济产生了巨大的外部效应。金融创新活动的高风险性带来的负外部效应会引发巨大的系统性风险和危机。分析了系统重要性金融机构正负两方面外部性的作用机制和宏观效应,研究发现负外部性加大了整个金融体系的边际成本、政府和纳税人的负担,而且会快速传递到宏观经济体系;进一步结合庇古和科斯的外部性政策方法对系统重要性金融机构的监管问题进行了讨论,并将监管方法从政府解和市场解两个方面进行了分析,认为现有的业务管制和资本附加等监管方法可以在一定程度上使系统重要性金融机构的负外部性内在化,但是对于银行规模和税收方面的监管措施还需改进。     

A discussion of the market and policy failures associated with the adoption of herbicide-tolerant crops

Weed control in the U.S. Midwest has become increasingly herbicide-centric due to the adoption of herbicide-tolerant (HT) crops in the 1990s. That integrated weed management (IWM) practices, including ecological and mechanical controls, are scarcely used is concerning. IWM would be a more sustainable form of farming for two reasons. First, it would reduce the negative health and environmental externalities associated with herbicide use. Second, it would reduce the selection pressure on weed populations and the development of weed resistance to some herbicides, thereby reducing the uncertainty of the long-term effectiveness of herbicidal weed control. In this context, we develop an economic framework to clarify the interplay among the different market failures that either contribute to the herbicidal ‘lock-in’ or make it problematic. We then analyse the evidence for and perceptions of these market failures based on twenty-four semi-structured interviews with farmers and experts conducted in 2017, as well as on discussions in the academic literature. To this end, we put into perspective the possible self-reinforcing effects in the adoption path of HT crops, such as increasing farm size, changes in farm equipment, increasing incentives for simplified crop rotations, and the loss of practical knowledge of IWM practices.     

By What Criteria Do We Evaluate Accounting? Some Thoughts on Economic Welfare and the Archival Literature

The economic role of an accounting regime is to increase welfare through its effects—in conjunction with complementary institutions—on firm and household behavior. I review three major streams of the archival literature (real effects; price effects, including value relevance; and costly contracting), in terms of what they can and cannot reveal as proxies for welfare effects. One conclusion is that the partial correlations and average effects that predominate in this literature have provided valuable insights into the role of accounting in the economy, but provide limited and misleading proxies for welfare effects. A major concern is that teachers, students, and researchers—indeed, regulators and standard setters—raised on this literature could lose sight of, and underestimate, the fundamental contribution of accounting to aggregate welfare.     

The effects of agglomeration externalities on urban green total-factor productivity in China

For China's urban industrial layout and green development, determining which types of agglomeration externalities are most advantageous to the rise of green total-factor productivity has both theoretical and practical relevance. This research experimentally studies the effects of three types of agglomeration externalities on urban green total-factor productivity using the data of 285 Chinese cities from 2003 to 2018. The findings demonstrate that urban green total-factor output is rising, albeit with certain differences during different time periods. Both the Jacobs externality and the Porter externality are favorable for increasing urban green total-factor production when all cities are evaluated together, although the latter has a stronger promoting influence. The effect of the Marshall-Arrow-Romer externality, on the other hand, is not significant. Furthermore, these effects also depend on the stage of economic development and population size.     

Should public policy respond to positional externalities?

A nice suit is one that compares favorably with those worn by others in the same local environment. More generally, a positional good is one whose utility depends strongly on how it compares with others in the same category.¹A positional externality occurs when new purchases alter the relevant context within which an existing positional good is evaluated.² For example, if some job candidates begin wearing expensive custom-tailored suits, a side effect of their action is that other candidates become less likely to make favorable impressions on interviewers. From any individual job seeker's point of view, the best response might be to match the higher expenditures of others, lest her chances of landing the job fall. But this outcome may be inefficient, since when all spend more, each candidate's probability of success remains unchanged. All may agree that some form of collective restraint on expenditure would be useful.In such cases, however, it is often impractical to negotiate private solutions. Do positional externalities then become legitimate objects of public policy concern? In attempting to answer this question, I employ the classical libertarian criterion put forth by John Stuart Mill³, who wrote the state may not legitimately constrain any citizen's freedom of action except to prevent harm to others. I argue that many positional externalities appear to meet Mill's test, causing not just negative feelings but also large and tangible economic costs to others who are ill-equipped to avoid them. I also discuss an unintrusive policy remedy for positional externalities, one modeled after the use of effluent charges to curb environmental pollution.The paper is organized as follows. Section 1 notes the deep similarity between the conditions that give rise to positional arms races and those that give rise to conventional military arms races. Section 2 follows with a review of evidence concerning the strength of concerns about relative position. Section 3 describes some of the tangible economic costs that people experience as a result of positional externalities arising from such concerns. Section 4 takes up the question of whether collective action directed against positional externalities is consistent with respect for individual rights. Section 5 describes how a progressive consumption tax could neutralize many of the most costly effects of positional externalities.     

交叉网络外部性在证券交易所定价中的应用分析

本文利用双边市场理论对证券交易所进行实证检验和模型研究,采用格兰特因果检验方法对上海交易所数据进行了实证分析,研究结果表明相比上市公司而言,投资者是“鸡蛋相生”问题的关键点,因此根据实证结果提出扩大投资者规模是证券市场发展的关键所在.然后针对上市公司和投资者的自网络外部性特征及投资者内部之间交易的特点,采用模型研究得出较强的负自网络外部性使得交易所会降低上市公司的注册费来吸引公司;当注册费太高时,交易所会降低交易费来保留住投资者,反之亦然.