R&D活动、市场势力与社会福利效应*——基于中国企业的实证分析

R&D活动提高企业市场势力的途径是什么？R&D活动改善社会福利的途径与机制是否存在行业差异？本文利用2004-2007年中国工业企业的面板数据,在市场势力的度量模型--新产业组织生产法模型的基础上加入企业的R&D活动因素,直接测算我国工业企业的市场势力,并基于企业所在行业、企业所有制和企业行为特征的不同视角,考察R&D活动对企业市场势力的影响,以及降低成本和提高产品价格两条路径对不同行业的社会福利效应的影响。       

Russian exports of emission permits under the Kyoto Protocol: The interplay with non-competitive fuel markets

The paper analyses optimal strategies for a country that has market power in an international market for emission permits at the same time as a domestic fuel producer participates in a non-competitive fuel export market. In particular, the effects of coordinating fuel and permit exports are explored. We show that such coordination may either increase or reduce the optimal mark-up on permits, depending on the degree of substitution between alternative fuels.When the fuel market is oligopolistic, coordination of permit and fuel exports may lead to a strategic disadvantage in the fuel market, which makes such coordination unprofitable. However, illustrative numerical simulations suggest that Russia will benefit from coordinating its permit exports with its oil and gas exports during the Kyoto commitment period.     

国际合资企业IJVs的研发环境与产品创新：技术创新成果保护的调节作用

目前成立在华国际合资企业是我国引进外商投资的重要途径之一。本文通过实证研究探究在华国际合资企业研发环境与其产品创新绩效之间的关系。研究结果显示,在华IJVs所处的研发环境中,政府支持、市场环境、知识环境以及市场对创新的需求都对产品创新绩效具有直接影响,基础设施与社会环境这一因素对在华IJVs产品创新的影响并不显著。研究还发现,在华国际合资企业采取技术创新成果的竞争性保护措施和法律保护措施均会对在华IJVs研发环境和产品创新之间的关系产生调节作用。     

Labor Market Institutions and the Second-Best Tariff

Labor market distortions provide a second-best case for protection. However, the implications are less obvious when the product market is imperfectly competitive too, as suggested by several partial equilibrium studies. This paper adopts a general equilibrium approach, combining unionization in labor markets with monopolistic competition in product markets. Two labor market settings are considered: fully centralized wage bargaining ("Scandinavia", for short) and negotiation at the firm level ("Latin America"). The competitive labor market case is used as a benchmark. It is shown that in Latin America the second-best tariff is higher, and the welfare level lower, than in the benchmark case. Scandinavia reaches the first best under free trade.     

供应商-客户关系会影响企业的商业信用吗*——基于中国上市公司的实证检验

本文以我国上市公司为样本,实证检验了供应商-客户关系对企业商业信用融资规模和期限的影响。结果表明：供应商集中度越高,企业的商业信用融资规模越小,融资期限越短;当企业更容易获得银行贷款、企业所在地的产品市场发育程度更高时,供应商集中度与商业信用融资规模、融资期限之间的相关关系显著弱化。本文从新的视角丰富了企业战略与商业信用研究领域的文献,也为我国进行信贷市场及产品市场建设提供了证据支持。     

市场竞争不完全与企业内部工资差距*——基于产品与劳动力市场融合视角的分析

理解工资差距的形成机制是在新时期破解发展不平衡不充分问题，进而实现共享发展的关键。本文从产品与劳动力市场竞争不完全相融合的视角，扩展了中国企业内部技能员工与非技能员工工资差距形成机制的研究，兼论消除竞争不完全的效率提高。基于中国企业数据并在统一的框架下构建市场竞争不完全的测算指标，本文发现：中国的市场化改革并不必然带来收入差距的扩大，不完全的市场化改革形成的产品与劳动力市场竞争不完全才是引发企业内部收入差距的重要原因。当存在市场竞争不完全时，企业会将产品市场势力扩展到劳动力市场，形成劳动力市场竞争不完全对工资差距的更大影响。这意味着单一的市场化改革不能有效缓解收入差距，只有产品与劳动力市场的同步改革才能达到最优的政策效果。中国的市场化改革可以在初次分配中通过发挥市场机制兼顾效率与公平。     

我国水产品进口贸易波动研究

随着我国人民生活水平及消费水平的提高,对水产品的需求不断增加。因此,本文首先对1995~2017年我国水产品进口贸易现状进行分析,并应用CMS模型对我国水产品进口贸易波动进行实证分析,探索水产品进口贸易增长成因,检验水产品进口与世界进口规模间的关系,据此为促进我国水产品进口贸易的可持续发展提出相关建议。研究结果表明：世界经济的发展及我国较强的进口引力是促进我国水产品进口贸易增长的关键因素,而进口产品结构及市场分布的不合理阻碍了我国水产品进口贸易的增长。因此,应协调世界经济发展,优化水产品进口贸易品种结构及市场结构,加强国际交流与协作,进而推进水产品进口贸易及国内产业的可持续发展。     

Technology Strategy And Product Diversity

This paper considers a three-stage game of a differentiated oligopoly: firms first make their entry decisions, then they choose production technologies and in the third stage of the game they decide product prices. The technology choice can be understood as selecting one from a pool of those recently available as well as developing a new technology through innovative activities. The resulting market equilibrium is then compared with the social optimum. The main conclusions are that a monopolistically competitive market will typically undersupply both product variety and production scale. R&D competition in a free entry differentiated oligopoly will lead to insufficient R&D investment at firm and industry levels.     

Technological change in niches: Auxiliary Power Units and the hydrogen economy

In studies of large scale systems innovations or technological transitions, niches have been given a prominent role as incubators for the seeds of future technological systems. It is often argued that immature technologies rely on niches for their development, before they are able to compete in mainstream markets. This paper combines insights from economic theory and from technology studies to formulate a framework for understanding the dynamics of technological change in niches, and applies this framework to the case of fuel cell Auxiliary Power Units (APUs). We conclude that the choice of technology for APUs will be of critical importance in determining the role this market could have in shaping future developments in hydrogen and fuel cells. However, a number of factors are not strictly dependent on the technology used in fuel cell APUs. These comprise factors influencing external economies of scale, network effects, the behaviour of users and expectations.     

Interfuel substitution in US electricity generation

Ongoing changes in the US electricity market include restructuring and increased competition. With this unfettering of the market, the fuel choice in generation is expected to become more flexible and responsive. To investigate this hypothesis, studies of US electricity fuel choices over the last three decades are summarized and the most recent analysis is provided on a market very different from the one on which earlier studies were done. Modern data handling techniques allow the consideration of the most comprehensive database including 185 utilities on monthly data for 1993. This paper finds fuel choice to show a considerable amount of price responsiveness, the amount of responsiveness is sensitive to the fuel substitution possibilities within the utility, and the amount of responsiveness seems to have increased recently for oil and natural gas.     

Integrating innovation system and management concepts: The development of electric and hybrid electric vehicles in Japan

Policymakers as well as corporate managers want to know how to gain the lead and benefit from a paradigmatic shift in technology. This paper develops and uses a combined policy and firm-level theoretical framework to derive policy implications from a case study of the development of battery, hybrid and fuel cell electric vehicles (BEVs, HEVs and FCVs) in Japan. Among the implications of the study, it is argued that Japanese national policy has so far had a limited direct role in the electrification of vehicles; this has been very largely decided and carried out in-house at the automakers. Policymakers need to consider this as well as the inherently international nature of the automotive industry. One key factor behind Toyota's and Honda's early and sustained lead in the electrification trajectory is the intense and in some aspects quite specific type of competition on the domestic market, which has nurtured firms with a strong product development capability. Finally, it is argued that the proposed theoretical framework contributes to a more balanced view of the role of policy in this potential paradigmatic shift in technology in a mature industry, compared to traditional policy or firm-level approaches.     

Fuel Prices,Sales Taxes and Passenger Car Market Shares in New Zealand, 1963–1978*

This paper estimates a set of market share equations for new passenger cars in New Zealand over the period 1963 to 1978. These equations are then used to determine the effects on market shares of the fuel price increases and tax rate changes that occurred in the 1970s. The results indicate that the fuel price increases had a major impact on market shares, but that the tax changes probably did not.     

Persistence of product innovation: comparing breakthrough and incremental product innovation

In this paper we examine whether and to what extent breakthrough and incremental product innovation is persistent at the firm level. Drawing on a panel database created from the Community Innovation Survey (CIS) we find that lagged breakthrough product innovation ‘new to the market’, has a significant and positive influence on firms’ ability to develop current breakthrough innovation, while this is not the case for incremental-product innovation ‘only new to the firm’. Our findings show that the dynamics of innovation persistence differ across types of (product) innovations.     

产品市场竞争力对资本结构影响的传导路径分析——引入中介变量:资产专用性

以信息产业2003—2012年A股上市公司的数据为基础,研究企业产品市场竞争力对资本结构的影响,并检验资产专用性在产品市场竞争力与资本结构之间的中介作用。结果表明,产品市场竞争力与资产负债率显著负相关;资产专用性在产品市场竞争力与资本结构之间起到了部分中介作用。     

Optimal Emissions Taxation under Imperfect Competition in a Durable Good Industry

This paper investigates optimal emissions taxation under imperfect competition in a durable good industry where products are sold (instead of rented). As a benchmark, attention is paid to the special case of monopoly with exogenously given product durability. In line with previous literature, the optimal emission tax in this benchmark model falls short of marginal damage (underinternalization). Extending the benchmark model either to the case of an oligopolistic market structure and/or to the case of endogenous product durability then provides two cases in which the optimal emission tax overinternalizes marginal damage.     

Evaluating market efficiency without price data: the Swedish market for wood fuel

The overall objective of this paper is to analyse the price development and price formation for wood fuel used by the Swedish district heating sector. According to Lönner et al., there is a significant potential for increasing the use of wood fuel in Sweden, at a fairly moderate cost. The basic question raised in this paper is then why this potential is not realized. Specifically, a methodology is proposed for testing whether the reason is that market imperfections are present. As a first step the shape of the technology in the Swedish district heating sector is estimated for the period 1989 to 1996. In the second step the estimated technology and the assumption of cost-minimizing firms are combined to calculate shadow prices, i.e. marginal valuation of wood fuel in this sector. If the average shadow price significantly deviates from the average observed price one may conclude that this market is functioning inefficiently due to imperfections. According to constructed bootstrap confidence intervals this difference is significant only for three out of eight years, implying that the quantities of wood fuel traded are too small. For the other years the difference is not significant, implying that one cannot, on statistical grounds, reject the efficient market hypothesis for all years.     

Conjectural-variation models and supergames with price competition in a differentiated product oligopoly

Conjectural-variation models (CV models) are popular in empirical research as they infer the degree of market power from real data. Theorists of industrial organization, however, disapprove of them for lack of theoretical foundation arguing that dynamic reactions are forced into a static model with the strategy space and time horizon only loosely defined. The presented model follows an idea put forward by Cabral (1995) and demonstrates that the CV model can be interpreted as the joint-profit-maximizing steady-state reduced form of a price-setting supergame in a differentiated product market under optimal punishment strategies. For the symmetric two-firm case the CV parameter is shown to cover the full range of possible outcomes — from Bertrand competition to joint unconstrained monopoly — depending on the degree of product differentiation, market growth, bankruptcy risk, and the discount rate. For the asymmetric-cost case numerical calculations are provided.     

结构性通货膨胀的一个基本理论分析框架——基于状态空间时变参数模型的实证

以实体经济的部门瓶颈制约模型、货币视角的资产市场均衡模型为基础构建了一个结构性通货膨胀理论分析框架,并利用状态空间时变参数模型计量方法进行了实证检验。结果显示,农业部门瓶颈制约明显,产品供给弹性低,当需求短期内增加,农业劳动力、农产品价格上涨的结构性通货膨胀特征明显;同时,当货币流动性出现过剩,充足的流动性会将结构性通货膨胀推向更高水平,国内货币流动性、外汇储备则起到推波助澜的作用。     

Competition and ownership structure: Substitutes or complements? Evidence from the Warsaw Stock Exchange

In this paper we analyse the impact of product market competition and ownership structure on firm performance. Our results show that product market competition has a positive and significant impact on performance. Concerning the effect of ownership concentration, we find a U–shaped relationship with performance. Firms with relatively dispersed and relatively concentrated ownership have higher productivity growth than firms with an intermediate level of ownership concentration. This correlation between concentration of ownership and productivity growth is not explained by the type of the controlling shareholder. Finally, product market competition and good governance tend to reinforce each other rather than to be substitutes. Competition has no significant effect on performance for the firms with ‘poor’ governance; on the contrary, it has a significant positive effect in the case of firms with ‘good’ corporate governance. JEL classification: D24, G32, L1, P2.     

Technology transfer in a horizontally differentiated product market

This paper considers technology transfer in a Cournot-duopoly market where the firms produce horizontally differentiated products. The patent licensing contract consists of up-front fixed fee and per-unit output royalty for products of neither close substitutes nor isolated. In case the goods are close substitutes then only per-unit output royalty is the optimal solution. However, whether the incentive for imitation increases with product differentiation is ambiguous. Further, in case of credible imitation threat, the relationship between better technology transfer and product differentiation may be ambiguous. We have briefly addressed the implications of multiple licensing.