我国区域资本形成差异实证分析

在总结分析区域资本形成差异相关研究的基础上,利用泰尔指数对我国区域内、区域间和区域总体资本形成差异进行实证研究.分析结果显示:区域内资本形成差距不具备收敛特征,区域间资本形成差异具有日趋缩小趋势,区域总体资本形成差异与区域间资本形成差异表现出高度的吻合性.要加快中西部地区发展的步伐,提高资本利用效率,建立区域内部协调发展机制,以缩小我国当前区域资本形成的差距.     

Role of search for domain knowledge and architectural knowledge in alliance partner selection

Research Summary: The literature on technological alliances emphasizes that search for knowledge drives alliance formation. However, in conceptualizing technological knowledge, prior work on alliances has not made a distinction between domain knowledge—knowledge that firms possess in distinct technological domains—and architectural knowledge—knowledge that firms possess about how to combine elements from different technological domains. We argue that firms seek partners that are similar in domain knowledge to deepen their knowledge, and partners that are dissimilar in architectural knowledge to broaden their knowledge. Our results indicate that the likelihood of alliance formation increases when two firms are similar in domain knowledge and dissimilar in architectural knowledge. Further, our results show that these effects are positively moderated by the degree of decomposability of a firm's knowledge base. Managerial Summary: In dynamic environments, companies need to continually deepen and broaden their technological knowledge, and they often look for alliance partners who can provide them that knowledge. For knowledge deepening, companies are more likely to form alliances with those companies that have expertise in similar technological fields. For knowledge broadening, they are more likely to form alliances with those companies that have expertise in the same technological fields, but have different recipes for combining knowledge from those fields. Furthermore, a company with a modular knowledge base is more likely to seek a partner that has expertise in similar technological fields or whose recipes for combining knowledge from different technological fields are different from the recipes it has.     

Size of nested cities

Models of cities based on conventional spatial market theory are unable to replicate a realistic size distribution. The stochastic process approach to size distribution, which assumes proportionate growth, does not provide an economic foundation for spatial trades. There is an apparent irreconcilability. We propose that since there is a continuum of equilibria in models of spatial markets with endogenous location, proportionate growth can work as equilibrium selection. We present computations for an urban configuration that has not been presented in the literature before. A small city locates inside a larger city's agricultural supply zone. This generates a larger variation in city size that may include a realistic size distribution.     

论品牌竞争力的来源及其形成过程

品牌的本质是企业与消费者之间的无形契约,品牌反映的关系是企业与消费者之间的契约关系。本文从竞争力的经济学解释入手,分析并指出品牌差别优势是品牌竞争力的源泉,要素优势转化是品牌差别优势形成的关键,顾客感知是品牌优势通向品牌竞争力的桥梁。     

农产品流通体制演进与契约行为

市场行为、市场价格的形成都是用契约关系来联结的,契约关系的紧密程度决定了市场的发育程度。基于契约行为与交易协调机制的基本分析框架,回顾我国农产品流通体制的改革历程,考察农产品流通市场契约化的进程,即关系交易向契约交易的转变,以及契约的价格由计划定价向市场形成价格的转变两个方面。加快农产品流通市场改革,将促进我国市场经济体制改革的发展。     

大型水利工程信用风险的形成路径及治理对策

基于业主与承包商的博弈模型,从一次和多次博弈两方面剖析了大型水利工程中承包商信用缺失动机的形成机理,并根据行为心理学理论分析信用风险的形成路径。结果表明:强监督力度、强惩罚力度、适度奖励是有效控制承包商信用风险的途径。在此基础上建立信用风险的动态管理机制,为大型水利工程中的信用风险系统管理提供参考。     

非洲猪瘟疫情对我国肉类价格影响的区域异质性研究

[目的]非洲猪瘟疫情暴发导致猪肉等畜产品市场供需结构性、区域性失衡,进而导致肉类价格大幅波动,不利于畜牧业高质量可持续发展。[方法]文章通过构建覆盖全国30个省（市、区,不含港澳台、西藏）,包括猪牛羊和白条鸡四大肉类价格和非洲猪瘟疫情指数的动态面板数据,运用面板向量自回归模型（PVAR）,研究非洲猪瘟疫情对猪肉等主要肉类价格的冲击和影响在重点、约束、适度发展区和潜力增长区(1)的区域异质性。[结果]（1）非洲猪瘟疫情对不同区域不同肉类价格的影响存在着正负向不趋同的方向性差异,在冲击程度大小和时滞期上均存区域异质性;（2）区域间和区域内不同省份间猪肉等肉类生产流通和供需形势、及非洲猪瘟发生发展程度的差异是非洲猪瘟疫情对这些肉类价格冲击影响异质性产生的主要原因。[结论]非洲猪瘟疫情对肉类价格影响存在较为明显的区域异质性,亟需进一步优化生猪等畜牧产业布局,加快形成区域协同发展格局;健全动物疫病防控体系,建立多方协同联动机制;完善市场风险预警调控机制,加快实现产需顺畅匹配,确保畜产品市场总体平稳运行和畜牧业健康可持续发展。     

内蒙古半农半牧区形成与变迁的制度分析

进入近代社会,受清政府"放垦政策"和内地农耕文化的长期影响,蒙古族传统游牧业经济向半农半牧经济和农业经济转变,牧区转变成半农半牧区和纯农区。本文主要分析了促成蒙古族半农半牧区形成和变迁的制度因素,试图论证制度因素对于经济社会发展过程中产生的重要影响。     

财政分权框架下的财政政策和货币政策

本文扩展了Barro( 1 990 )和Gong和Zou( 2 0 0 2 )的模型 ,讨论财政分权框架下的政府财政政策和货币政策 ,通过消费者行为、地方政府行为和中央政府行为之间Nash均衡解 ,得到了经济增长率和各参数的隐式关系 ,并且通过数值模拟得到经济增长率与各种税收以及政府间转移支付的关系。我们发现经济增长率和收入税的关系是Laffer曲线 ,消费税对经济增长的影响是正的 ,财产税对经济增长的影响是负的。至于货币政策的影响 ,我们发现货币不再是超中性的了 ,供应量增加可以促进经济增长 ,而且经济中的货币的流通程度越高 ,经济增长率越高。最后 ,本文还讨论了多级地方政府的情况 ,分析了不同税收制度的地区对整个经济增长的不同影响。     

Strongly stable networks

We analyze the formation of networks among individuals. In particular, we examine the existence of networks that are stable against changes in links by any coalition of individuals. We show that to investigate the existence of such strongly stable networks one can restrict focus on a component-wise egalitarian allocation of value. We show that when such strongly stable networks exist they coincide with the set of efficient networks (those maximizing the total productive value). We show that the existence of strongly stable networks is equivalent to core existence in a derived cooperative game and use that result to characterize the class of value functions for which there exist strongly stable networks via a “top convexity” condition on the value function on networks. We also consider a variation on strong stability where players can make side payments, and examine situations where value functions may be non-anonymous—depending on player labels.