浅论我国农产品流通企业扩张的基本规律与政策规制

通过对农产品流通企业扩张形式全面的理论梳理, 研究总结了二种类型的农产品流通企业扩张基本规律,即纵向扩张和横向扩张,并对中国农产品企业扩张问题进行了实证研究,最后对我国农产品流通企业扩张提出建议.     

Short-time at-the-money skew and rough fractional volatility

The Black–Scholes implied volatility skew at the money of SPX options is known to obey a power law with respect to the time to maturity. We construct a model of the underlying asset price process which is dynamically consistent to the power law. The volatility process of the model is driven by a fractional Brownian motion with Hurst parameter less than half. The fractional Brownian motion is correlated with a Brownian motion which drives the asset price process. We derive an asymptotic expansion of the implied volatility as the time to maturity tends to zero. For this purpose, we introduce a new approach to validate such an expansion, which enables us to treat more general models than in the literature. The local-stochastic volatility model is treated as well under an essentially minimal regularity condition in order to show such a standard model cannot be dynamically consistent to the power law.     

晋升博弈、政绩考核与地方政府债务扩张

通过动态最优化模型的证明,发现宏观经济政策仅是地方政府债务扩张的决定因素之一。在地方政府债务扩张的过程中,地方官员政绩考核机制起着关键作用。因此,要杜绝地方政府债务的盲目扩张,最根本的出路还是要进行地方官员政绩考核长效机制的建设,从而保证国民经济的长期稳定发展。     

经济欠发达地区商业银行信贷业务拓展与创新研究——以安徽信贷市场为例进行分析

从余额、增量、增幅、人均信贷水平等不同维度看,安徽信贷市场规模较小,但是面临巨大的发展空间。拓展和创新欠发达地区信贷市场需要重视四个方面:第一,在国家货币信贷政策上对经济欠发达地区信贷市场的扩展给予促进和推动;第二,大型商业银行的总行在制定区域信贷政策和分配贷款限额时,要对其在经济欠发达地区的分支机构实行倾斜;第三,欠发达地区各级政府要大力加强诚信社会建设,确保投资者和债权人合法权益,增强其投资信心和收益预期;第四,商业银行要建立适应欠发达地区信贷市场快速发展的信贷营销机制和信贷管理机制,确保信贷市场健康持续发展。     

中国油井管研究进展

从油井管的品种、用途、存在的问题三方面综述了油井管的研究现状,探讨了油井勘探开发和油井管在研究、生产中存在的问题以及未来的发展趋势。指出,在高端产品技术领域,中国和发达国家之间仍然存在一定的差距,应加快高性能油井管国产化进程。     

产能过剩化解对策——国企盲目投资扩张诱因分析

相关数据显示,以国企投资为主的传统制造业产能过剩情况严重,国有企业也是产能过剩率先爆发的“重灾区”。探究国企投资冲动背后的深层次诱因,可归结为内部成本的外部化和国企产权不明晰两大原因。化解产能过剩必须建立起长效化解机制,一方面通过完善市场竞争机制来还原市场对资源配置的决定性作用,另一方面通过实质性地推进国企改革,来最终达到根治产能过剩的目的。     

企业边界、企业扩展与企业成长的比较分析——对企业成长理论的重新解读

企业的边界理论很好地说明了企业与市场的替代关系,但却对现实中企业复杂的扩展行为与成长现象解释乏力。其实企业的边界、扩展与成长,每个概念都有其独特的内涵,并都代表着一种研究视角与理论假定。本文通过对3个概念的比较分析,对企业的主体性、企业演化成长的动力、阻力与经济效率等一些基本问题进行了梳理与研究,以期能够对企业成长理论有一个较为全面的阐述。     

FOREIGN ENTRY,CULTURAL BARRIERS,AND LEARNING

This paper examines the longevity of foreign entries. Hypotheses are developed on the mode (start-ups vs. acquisitions) and ownership structure (wholly owned vs. joint ventures) in relation to cultural distance. The hypotheses are tested within a framework of organizational learning, using data on 225 entries that 13 Dutch firms carried out from 1966 onwards. Results show that the presence of cultural barriers punctuates an organization's learning. Cultural distance is a prominent factor in foreign entry whenever this involves another firm, requiring the firm to engage in ‘double layered acculturation.’ We also identify locational ‘paths of learning.’ The longevity of acquisitions is positively influenced by prior entries of the firm in the same country. Similarly, the longevity of foreign entries, in which the firm has a majority stake, improves whenever the expanding firm engaged in prior entries in the same country and in other countries in the same cultural block.     

建设用地扩张对经济增长的贡献及其区域差异研究

研究目的：应用1999 — 2007年分省数据,测度近年建设用地扩张对中国及不同区域经济增长的贡献及变化趋势,为土地政策制定提供依据。研究方法：效率评价法、多元回归分析法、比较分析法。研究结果：（1）1999 — 2007年中国固定资本、劳动力和建设用地的产出弹性分别为0.745、0.274和0.083;（2）初级产品阶段地区、工业化阶段地区、发达经济阶段地区建设用地的产出弹性分别为0.376、0.068和0.066;（3）地区技术效率和土地宏观调控对建设用地扩张存在显著抑制作用。研究结论：（1）建设用地扩张对经济增长的贡献随着发展阶段演进逐渐减小;（2）对处于不同发展阶段的地区,应实行差别化的土地管理策略与绩效考核方法。     

Power politics and the expansion of US exports, 1879–1938

In this article, we present quantitative evidence for the first time of the effect of US power politics on the expansion of its export market from the late nineteenth century to the eve of the Second World War. Like other empires, US imperial policy was expressed through annexation, gunboat policies, and asymmetrical trade agreements. We find that US exports to territories that became colonies or protectorates and those involved in other US military interventions grew more than three times faster between 1880–5 and 1934–8 than in the rest of the world. Our most relevant contribution to this discussion relies on a new geographically extensive database with information on bilateral trade flows, market size, trade costs, and variables that capture US political and military power. We first estimate a gravity equation to see the relationship between our power politics variables and US exports. Then, we present causal evidence of the role played by the colonies and protectorates in the expansion of US exports through an event study and the estimation of a generalized difference-in-differences model.