粤港澳大湾区制造业集聚与区域创新

以2009—2020年粤港澳大湾区11个城市为研究对象，探讨制造业集聚与区域创新的关系。研究发现，制造业集聚显著提高区域创新水平，可通过提高企业竞争这一路径实现。进一步分析发现，金融业集聚对区域创新发展具有显著的正向关系，金融产业和制造业产融协同集聚显著提高区域创新水平。研究结果表明，制造业集聚加剧产业内部企业创新竞争，带动区域创新发展，且金融业在创新中起到积极的推动作用。指出应鼓励区域企业创新竞争，优化营商环境，为产业融合发展提供保障。     

银行业市场竞争对企业技术创新的影响研究

银行贷款是企业创新的重要融资来源,银行业市场的变化影响着企业技术创新的融资环境.基于2008-2014年沪深A股上市公司的实证检验发现:银行市场竞争性的提高有利于缓解企业的融资约束,促进企业技术创新.企业规模对中小企业的技术创新有正向的影响,对大型企业存在负的效应.银行业市场竞争对企业技术创新的影响也因企业规模不同而不同,中小企业受到的融资约束明显,银行业竞争度的提高更有利于促进中小企业的技术创新.     

Optimal insurance in the presence of reinsurance

This paper studies an optimal insurance and reinsurance design problem among three agents: policyholder, insurer, and reinsurer. We assume that the preferences of the parties are given by distortion risk measures, which are equivalent to dual utilities. By maximizing the dual utility of the insurer and jointly solving the optimal insurance and reinsurance contracts, it is found that a layering insurance is optimal, with every layer being borne by one of the three agents. We also show that reinsurance encourages more insurance, and is welfare improving for the economy. Furthermore, it is optimal for the insurer to charge the maximum acceptable insurance premium to the policyholder. This paper also considers three other variants of the optimal insurance/reinsurance models. The first two variants impose a limit on the reinsurance premium so as to prevent insurer to reinsure all its risk. An optimal solution is still layering insurance, though the insurer will have to retain higher risk. Finally, we study the effect of competition by permitting the policyholder to insure its risk with an insurer, a reinsurer, or both. The competition from the reinsurer dampens the price at which an insurer could charge to the policyholder, although the optimal indemnities remain the same as the baseline model. The reinsurer will however not trade with the policyholder in this optimal solution.     

Efficiency in Turkish banking: post-restructuring evidence

Turkish banking sector went through a significant restructuring process in the aftermath of the country's financial crisis of 2000–2001. In this paper, we analyze the evolution of banking performance using a novel approach due to Ray [(2007). “Shadow Profit Maximization and a Measure of Overall Inefficiency.” Journal of Productivity Analysis 27, 231–236]. We derive ‘shadow unrealized profit scores’ as well as ‘shadow input–output prices’ for each year and bank in the sector from 2002 to 2011. We argue these scores operationalize the Hicksian concept of ‘monopolistic quiet life’. We provide some evidence the sector came closer to the ‘zero profit condition’ as well as displaying a closer approximation to the ‘law of one price’ over time. We show the variability of these ‘shadow prices’ essentially coincides with that of corresponding actual prices. We utilize shadow price information to show that business models and competitive choices of banks differ across ownership types with foreign banks competing on the broadest front compared to state-owned and privately owned Turkish banks.     

高管连锁、同业监督与公司违规

本文选取2011—2018年度A股上市公司为研究样本,以具有竞争关系的同业公司间的高管连锁作为同业监督的渠道,检验了同业监督对目标公司违规的影响。研究发现:(1)同业监督能有效抑制目标公司违规倾向,且这一影响当且仅当连锁公司是同业公司时存在;(2)同业竞争是同业监督的基础,在行业集中度低和行业增长率低的行业中,同业监督对目标公司违规的抑制作用更强;(3)目标公司的政治关联会瓦解同业监督对公司违规的抑制作用;(4)区分违规行为类型后发现,同业监督对经营违规的抑制作用最强,对信息披露违规次之,对领导人违规几乎没有效果。本研究丰富了公司违规监督机制的内容,也提供了辩证看待高管同业兼任的新视角。     

Chinese competition and product variety of Indian firms

Using detailed firm-product-year data across manufacturing industries in India, and exploiting the exogenous nature of China’s entry into the WTO in 2001, we investigate the link between the impact of import penetration from China on the product variety of Indian manufacturing firms. We find: (i) robust and significant effects of product drop, with the effect coming only from competitive pressure in the domestic market; (ii) robust evidence of product drop or ‘creative destruction’ only for firms belonging to the lower-half of the size distribution; (iii) firms drop their peripheral/marginal products and concentrate on the core ones; and (iv) the result is strongest for firms producing intermediate goods. For an average Indian manufacturing firm, a 10 percentage point increase in India’s Chinese share of imports in the domestic market reduces the product scope of firms by 1.7–4.4%. In contrast, we find positive effects on product scope when firms are importing intermediate goods. We also find evidence of significant productivity effects and within-firm factor reallocation. Our results are consistent to a battery of robustness checks and IV estimation.     

对我国尽快制定《反垄断法》的理论思考

近些年来,反垄断问题已经成为我国法律界乃至全社会关注的一个焦点。当前国内市场上出现的大量为WTO所不容的垄断行为,已危及到了统一开放、竞争有序的社会主义市场经济体制的正常运行。因此,我国应尽快地制定出一部符合国际惯例及我国国情的《反垄断法》,从而规范国内市场,履行我国为加入WTO做出的相应承诺,提高我国的国际威望和地位。     

提升区域旅游业竞争力的策略研究

旅游业的发展离不开旅游资源的存在和旅游者活动的开展,但是旅游资源的地域特征和旅游者活动的空间转移特点,决定了旅游业的发展必然要与相应的空间地域结构联系,呈现出一定的区域特点,这也决定了区域旅游业竞争存在的必然性和必要性。因此,提升区域旅游业竞争力的策略研究,已成为各地区域旅游业发展的当务之急。     

城市污水处理行业的激励性价格管制

本文在借鉴雪理佛和巴杰夫特提出的区域间比较竞争模型基础上,引入利润率和质量系数,构建了两阶段污水处理区域间比较竞争定价模型,主要运用数据包络分析方法确定标杆企业,以促进污水处理企业之间的比较竞争。并以浙江省污水处理行业为例,运用聚类分析方法对污水处理企业的异质性进行区分与分类,对典型的污水处理企业进行价格测算,为污水处理行业实行激励性价格管制提供理论依据。     

The nexus between competition and efficiency: The European banking industries experience

In this paper, we investigate competition in banking systems in the EU27 as a whole for the period 2004–2010, but also for old members’ banking systems compared with new members’ banking systems and for banking systems from countries member of euro zone compares with banking systems from countries non-member of euro zone. In order to investigate this issue, we estimate a non-structural indicator of banking competition, using the H-statistic indicator that is estimated using bank-level data. Also, we apply two tests of convergence, β- and σ-convergence, for assessing competition evolution during the specified period. We want to fill the gap in the banking literature testing the validity of the Competition–Efficiency Hypothesis, analysing the impact of the banking competition measures on two alternative measures of efficiency, cost and profit efficiency, in the European banking systems in a Granger-causality manner. The results confirm us that in the EU the convergence process occur from the banking systems with higher competition level than the mean score of all countries. The evidence for all groups of countries, except non-euro zone group, where results are not statistically significant, confirm the Competition–Efficiency Hypothesis in terms of cost and profit efficiency.