Service-sector competition,innovation and R&D

The central prediction of the Aghion, Bloom, Blundell and Howitt model is an inverted U-shaped relationship between innovation and competition. The model is built on the assumption of a product market and has not yet been tested on the service sector. Using detailed firm-level data on Swedish service-sector firms, we find evidence of an inverse U-shaped relationship for exporting service-sector firms. A further breakdown of innovation expenditures shows that the inverse U-shaped pattern holds for intramural R&D and training, but not for extramural R&D. Finally, the results indicate that as competition increases, small firms tend to seek strategic alliances with competitors, whereas large firms tend to reduce collaboration with competitors. The behavior of large firms can partly be due to their superior capacity to handle innovation projects internally, which will become more important if increased competition results in higher pay-offs to innovation.     

Political constraints to growth in an economic union

This paper studies the political economy of growth in an economic union such as the EU. In the spirit of Acemoglu, Aghion and Zilibotti [Acemoglu, D., Aghion, P. and Zilibotti, F., 2006a, Distance to frontier, selection and economic growth, Journal of the European Economic Association, 4:1, 37–74; Acemoglu, D., Aghion, P., and Zilibotti, F., 2006b, Growth, development and appropriate versus inappropriate institutions, mimeo MIT.], as the economy approaches the world technology frontier, structural reforms that increase competition in intermediate goods sectors are necessary to boost innovation and productivity growth. Reforms, however, raise the opposition of incumbents and, therefore, are politically difficult to implement. When there are important cross-border policy spillover effects, national governments are more easily captured by vested interests, as they fail to internalize the benefits of reforms on the rest of the union. In this situation, productivity growth may be sluggish and the economy can fail to converge to the frontier. On the other hand, when policy is chosen by a union government (or a collective body that takes into account union welfare), the internalization of spillovers raises the perceived benefit of reforms and, consequently, lowers the ability of lobbies to obtain high levels of protection.     

标准专利许可中可变价格的社会福利效应:基于产品差异化的视角

技术标准在产品生产过程中的使用越来越广泛,标准专利许可定价形式问题关系到技术标准所有者和产品生产者的收益,有待拓展研究。通过构建古诺竞争模型,从产品差异化角度对标准专利许可中可变价格形式的社会福利效应进行分析,得到的主要结论为:当产品市场达到均衡,且标准专利许可采用的价格形式是可变价格时,社会总福利随着产品差异化程度的提高而增加,随着差异化产品市场中标准专利使用者数量的增加而增加,随着可变价格中可变费用比率的提高而降低;均衡产量随着产品差异化程度的提高而增大,随着可变价格中可变费用比率的提高而降低;均衡价格与产品差异化程度呈现出倒“U”型关系,临界点为特定的市场规模;标准专利使用者的均衡利润随着产品差异化程度的提高而增大。由此可见,标准专利许可的可变费用比率下降有利于激励技术标准使用者生产更多的差异化产品,提升社会总福利。     

Sequencing R&D decisions in a two-period duopoly with spillovers

Summary. We compare simultaneous versus sequential moves in R&;D decisions within an asymmetric R&;D/Cournot model with linear demand (for differentiated products), general R&;D costs, and spillovers. Simultaneous play and sequential play (with and without a specified leader) can emerge as appropriate formulations, depending on the ratios of spillover rate over demand cross-slope, but not on R&;D efficiency. When at least one ratio is above 1/2, a sequential solution mitigates competition and leads to higher profits for each firm, and to higher social welfare. When uniquely specified, the stronger firm emerges as the R&;D first-mover.     

The role of spillovers in research and development expenditure in Australian industries

Using administrative data from firms in Australia that conduct research and development (R&;D), we examine how R&;D activity of other firms and public institutions affect a firm's own R&;D expenditure. We distinguish between the impact of peers, suppliers and clients. We examine whether geographical proximity and industrial clustering affect R&;D spillovers. Overall, we detect positive effects on R&;D expenditure from spillovers from peers and clients to firms that are nearby; within 25 or 50?km. R&;D expenditure by academia, unlike by government bodies, has a positive influence on a firm's own R&;D expenditure within state boundaries. We fail to find any significant role for industrial clusters in augmenting spillover effects.     

Financial development and instability: The role of the labour share

This paper examines the role of the labour share in creating instability in a small open economy. We assume that financial markets are imperfect so that entrepreneurs are credit constrained, and that this constraint is tighter for low levels of financial development. Aghion, Bacchetta and Banerjee [Aghion, P., Bacchetta, P., Banerjee, A., 2004. Financial development and the instability of open economies. Journal of Monetary Economics 51, 1077–1106] have shown that as the degree of financial development increases, output rises but instability appears for intermediate levels of financial development. Crucially, they assume that labour is paid before production takes place, and hence crises are solely due to the increased cost of debt repayment as firms accumulate capital. We show that under the more reasonable assumption that wages are paid at the end of the period, changes in the labour share also play a role in eroding profitability. Our analysis also predicts that financial crises are associated with substantial movements in the sharing of value added between capital and labour.     

INTER AND INTRA FIRM DIFFUSION OF ICT IN THE UNITED KINGDOM (UK) AND SWITZERLAND (CH) AN INTERNATIONALLY COMPARATIVE STUDY BASED ON FIRM-LEVEL DATA

This paper examines the effect of participation in government-sponsored R&;D consortia on the R&;D productivity of firms in the case of robot technology in Japan. We attempt to provide a new empirical analysis and discussions on the issue of government project evaluation by investigating the impact of the evolution of government programs, and to compare government-sponsored R&;D consortia with collaborative R&;D among firms. Using indicators of the quality of patents, which enables us to provide an estimation of quality-adjusted research productivity, we find that participation in government programs has a positive impact on the research productivity of participating firms. Moreover, the impact of participation became much higher after the design of government programs in this field changed in the late 1990s. Also, we find that participation in government-sponsored consortia has a greater impact on research productivity than participation in collaborative R&;D among firms. This may support government involvement in R&;D as a coordinator of R&;D collaboration.     

关系专用性投资对企业创新的影响

从客户参与创新视角，探究了关系专用性投资对企业创新的影响，并利用制造业上市公司数据进行了验证。结果显示：关系专用性投资和企业创新投入之间存在倒U型关系，在达到某一阈值前，加大关系专用性投资有利于企业创新投入，但在超过某一阈值后，增加关系专用性投资会对企业创新投入产生负面影响。除此之外，创新投入与创新绩效之间存在正相关关系。     

Optimal privatization policy with asymmetry among private firms

We revisit the relationship between the optimal privatization policy and market competition indexes such as the Hirschman–Herfindahl index. It is affected by the number of the firms and asymmetry among the sizes of the firms; the smaller the number of firms and the more asymmetry among firms, the higher the market concentration index. The literature on mixed oligopolies suggested that the optimal degree of privatization increases with the number of private firms, and thus, decreases with the market competition index, assuming that all private firms are homogeneous. We investigate how asymmetry among private firms affects the optimal degree of privatization. We propose the simplest and natural model formulation to discuss asymmetry among private firms. We find that the optimal degree of privatization is either nonmonotone or monotonically increasing, and thus never monotonically decreasing, in asymmetry among private firms.     

Category index

We compare the R&;D decision of a second best social surplus maximizer to that of a profit maximizing monopolist in a second best world, namely one in which a monopolist makes production decisions. We show that a monopolist underinvests in R&;D relative to a second best social surplus maximizer. We show that the expected present value social surplus under a monopoly situation increases with the production technology except at the technology level where a monopolist stops doing R&;D.     

Price and quantity competition under free entry

This paper complements that of Cellini et al. (Cellini, R., Lambertini, L., Ottaviano, G. I. P., 2004. Welfare in a differentiated oligopoly with free entry: A cautionary note. Research in Economics, 58:125–33.), which shows that Cournot competition may generate higher welfare compared to Bertrand competition in an economy with free entry. Unlike them, we provide a more general proof for this result and show that Cournot competition generates higher welfare compared to Bertrand competition when the products are sufficiently differentiated. If the products are close substitutes, welfare is higher under Bertrand competition. We show that these qualitative results hold whether or not number of varieties increases market size. We also show when the active firms earn higher profits under Bertrand competition compared to Cournot competition.     

“创新”抑或“关系”？ 儒家文化视角下社会资本与企业战略研究

在经济社会转型期复杂的外部环境下,中国民营企业如何在激烈的市场竞争中调整战略、获取竞争优势并谋求长期发展？基于儒家文化视角考察了社会资本对民营企业战略导向的影响。以中国私营企业为研究样本,发现社会资本降低了企业的资源约束,但也“绑架”企业持续进行关系投入,促进了民营企业的创新战略和关系战略。儒家文化则规制了这种作用,在一定程度增强了企业的创新战略并削弱了关系战略。进一步研究发现,竞争激烈的环境更容易激发企业的战略变革,但外来文化冲击导致的文化冲突削弱了儒家文化的影响。机制检验发现,社会资本通过缓解融资约束,从而支持了民营企业的战略投入。以上结果经过工具变量回归及一系列稳健性检验后依然成立。上述发现拓展了非正式制度下企业行为的研究,为解释中国情境下民营企业的战略行为提供了经验证据。     

研发人员知识操纵、资源获取与概念产品语义创新

除知识共享与知识隐藏两种策略外，研发人员通常会选择介于共享与隐藏之间的中间策略，通过知识操纵管理个体知识。从概念产品语义创新的微观视角入手，依据知识保存理论，构建被调节的中介效应模型，探讨知识操纵、资源获取、政治技能对产品语义创新的影响机理，并利用377份配对样本数据检验相关假设。结果表明：知识操纵与资源获取之间存在倒U型关系，资源获取部分中介了知识操纵与产品语义创新的倒U形关系；政治技能在知识操纵与资源获取的倒U型关系中起正向调节作用，并且调节资源获取在知识操纵与产品语义创新之间的中介作用。研究诠释了知识操纵策略的两面性，强调知识型员工同样需要提高政治技能。     

何去何从:贸易保护还是开放竞争?——来自微观企业创新的证据

文章基于熊彼特效应和逃离竞争效应假说,结合中国转轨时期的经济制度背景,利用2001?2008年制造业关税数据和沪深A股上市公司专利数据,研究了中国加入WTO后,关税削减所导致的进口竞争对企业创新的影响.研究发现,关税削减后,企业的发明专利申请数量显著增加,而专利申请总数和非发明专利申请数量却没有受到显著影响,表明进口竞争激励企业进行了高质量的发明创新.进口竞争的激励效应对于易受竞争影响和全要素生产率高的企业更加显著.文章认为,应以开放的心态迎接贸易自由化和进口竞争,引导企业将进口竞争转化为创新动力,推动企业创新向高质量迈进,形成国际竞争新优势.     

Does a strong patent regime discourage innovation?

Does a strengthening of the patent regime impact R&;D expenditure? For the US semiconductor industry, a strengthening of the patent regime in the 1980s was followed by a sharp increase in patenting but had almost no impact on R&;D expenditure. This paper attempts to understand this patent paradox by taking some of the industry features into account. We present a model of invention and product development in complex industries where product development involves putting together a large number of inventions and where licensing of patentable inventions is common. While a stronger patent regime leads to higher patenting in both in presence and absence of licensing, the positive relationship between patenting and R&;D is weakened in presence of licensing since licensing provides an alternative way of accessing inventions. A stronger patent regime, therefore, may only create weak incentives to increase R&;D, while strongly increasing patenting activities in such an industry.     

Competition policy in open economies

Abstract

This paper examines aspects of R&;D spillovers across countries, in particular, the role of international trade and human capital as the catalysts for international diffusion of technology. We present a new way of measuring foreign R&;D stocks embodied in foreign intermediate goods and capital equipment, which we argue is free from the criticism of previous measures. With the pooled panel data spanning 1970 through 1995 for 103 countries, we find that the effects of foreign R&;D on total factor productivity growth of both industrial countries and developing countries are substantial and that human capital is the most influential channel for absorbing foreign R&;D spillovers.     

政府行为下创新要素流动及其空间溢出效应研究

基于2000-2018年中国内地31省市面板数据,采用固定效应分析法探讨政府行为与创新要素流动的内在机理,运用空间杜宾模型探究两者之间是否存在空间溢出效应。结果发现：就全国而言,地方政府竞争行为对R&D人员和R&D资本要素流动存在倒U型影响,且地方政府竞争与政府支持、政府支持与政府房地产投资偏好行为可以协同发力促进创新要素流动;另外,地方政府竞争和政府支持能够促进周边地区创新要素流动,而政府房地产投资偏好仅能影响周边地区R&D人员流动。在分区域研究中,东部地区3种地方政府行为对创新要素流动均存在倒U型影响,中部地区政府房地产投资偏好行为发挥倒U型作用,而政府竞争和政府支持行为发挥正U型作用;地方政府行为协同对中西部地区创新要素流动发挥正向促进作用,但在东部地区影响甚微。     

A concentration index for differentiated products: the case of religious competition

In the past, scholars have used a Herfindahl–Hirschman Index using denominational market shares to measure the competitiveness of religious markets. However, this approach ignores both the imperfect substitutability between denominations and the degree of competition within denominations. These two shortcomings make the current index a suspect measure of religious competition; it often falsely identifies which market micro-economists would generally consider the more competitive one. We develop a new religious competition index that incorporates intra-denominational competition and creates a ‘substitutability parameter’ to better specify the appropriate degree of inter-denominational competition. While the model developed in this article applies specifically to religious markets, our index of competition could be expanded to other economic markets where such a substitutability parameter is meaningful.     

Two-part tariffs in the online gaming industry: The role of creative destruction and network externalities

Playing computer games online is a fast growing, billion dollar industry which has received little academic attention. The industry exhibits a number of interesting economic features. The industry structure is determined by creative destruction as in Aghion and Howitt (1992) [Aghion, P., Howitt, P. 1992. A model of growth through creative destruction, Econometrica, 60(2), 323–351], with game makers experiencing market power within a genre until the game is superceded. Furthermore, the attractiveness of playing a game online depends on the existence of opponents (positive network externalities) while technical and reputational problems eventually arise (negative network externalities). We model the choice of two-part tariffs by a monopolist under creative destruction and network externalities and derive conditions for the multiple equilibria which currently exist in the industry.     

Environmental Tax Reform and Growth: Income Tax Cuts or Profits Tax Reduction

This study investigates how recycling revenues, which are generated by environmental taxes, affect growth through different types of tax cuts. A growth model with creative destruction (Aghion and Howitt Econometrica 60(2):323–351,1992, Aghion and Howitt The economics of growth, 2009) is modified to include the production of final output as a source of pollution. This paper demonstrates that introducing an environmental tax, accompanied by either an income tax cut or a profits tax reduction, increases the output growth rate. The analysis also shows that, if technological change is resulted from deliberate activities of economic agents, the reduction of the profits tax rate for an intermediate monopolist is more growth-enhancing than an income tax cut since a profits tax reduction directly promotes R&D activities.