培养社区意识,促进城乡一体化发展

伴随着工业化、城镇化的发展,我国迈入了城乡一体化建设的新阶段。这种一体化的新型社会需要健康向上的社区意识予以支撑,为此应建立起共同的社区认同感、归属感和参与感。文章建议加强城乡社区相互融合,从社区服务工作入手,丰富社区活动,增强居民参与意识,推动城乡一体化进程。     

未来十年综合航电系统的发展趋向

我国的合同法对代位权的客体做出了明确的限定,这使得代位权制度在实际运用中碰到了一些困难,本文对代位权的客体和抵押权能否成为代位权的客体进行了分析和探讨。     

农村集体建设用地空间研究进展与展望

我国农村集体建设用地空间布局混乱,而现有关于农村集体建设用地空间研究方面存在理论与方法缺陷。文章对农村集体建设用地空间格局及机制、农村集体建设用地的空间优化、城乡建设用地统一空间研究领域相关研究进展进行综述,结论为现有研究存在理论体系尚未建立、研究内容不健全、研究方法以定性描述和空间描述为主等问题。建议未来该领域研究应跳出传统土地管理相关理论,多学科交叉,探索地理学、经济学在农村集体建设用地空间研究方面的理论框架;基于空间格局—演变机制—优化配置的思路,构建农村集体建设用地空间格局演变动力模型、农村集体建设用地空间与人口/产业的相互影响模型、城乡建设用地统一空间模型,从农村集体建设用地空间格局及其演变机制、农村集体建设用地空间与人口/产业的协调机制、城乡联系机制下的农村集体建设用地空间优化3方面来开展农村集体建设用地空间研究。     

信贷市场不完美，产业转型升级和经济增长

本文提出一个信贷市场不完美情况下产业升级的宏观经济模型,其中信用受限的经济主体可以选择不同类型的产业进行投资,产业类型的异质性体现在投资项目的生产效率、投资规模和信用担保程度。经济主体储蓄量的变化会改变信贷在不同生产效率的产业类型之间的分配,而资本在不同产业类型的组合效应造成不同的经济增长模式,包括从事低效产业的落后经济、从事高效产业的先进经济、从事多种产业的混合经济等。     

生产者服务业与制造业的互动与融合：研究进展及展望——兼议对长三角地区的分析

20世纪70年代以来,生产者服务业在经济发展中的作用日益凸显,从而引起了学术界的广泛关注,生产者服务业与制造业的互动与融合便是其中一个主要方向。近年来,针对这一问题的研究在不断向纵深扩展。本文对已有的研究成果分别从理论、数理模型和实证方面进行了详尽的梳理,同时也总结了目前对于长三角地区这一问题的相关研究,并在此基础上对现有研究成果进行了简要的评价,提出了未来可能的研究方向。     

Inducing Downstream Selling Effort with Market Share Discounts

Loyalty discounts and rebates are pricing schemes that offer incentives to buyers for reaching or exceeding certain sales thresholds. In the case of market share discounts, thresholds are expressed as a percentage of the buyer’s total purchase requirements. Although market share discounts may have exclusionary effects under certain circumstances when a seller has significant market power, there are plausible non‐exclusionary reasons for offering them as well. Two such reasons – rent extraction and inducing downstream selling effort – are explored in this paper. The paper considers the case of a manufacturer who sells a differentiated good through a network of heterogeneous, non‐exclusive retailers. The manufacturer offers market share discounts to induce non‐contractible selling effort such as brand‐specific information or customer service from those retailers who possess certain unobservable characteristics. In some instances, market share discounts induce increased selling effort and improve market performance as compared to linear pricing. In other instances, they have no effect on aggregate benefits, but merely shift the rents created by induced selling effort upstream to the manufacturer. In no instance, as long as the producers of substitute goods retain sufficient sales to remain viable, do market share discounts impair market performance.     

区域经济一体化进程剖析:长三角、珠三角与环渤海

在全球化迅速发展的今天,区域经济一体化已是大势所趋。长三角一体化进程可分为四个阶段,珠三角可分为三个阶段,环渤海可分为四个阶段;区域一体化不可逆转并正在加速;长三角的一体化进程最快,然后是珠三角和环渤海;要推动区域一体化,适应市场要求、正确理论指导和政府宏观引导三者不可或缺;一体化进程由多种因素共同决定;基础设施一体化最易实施也进展最快,产业结构一体化最难以协调;一体化还处于探索阶段,其目标模式还没有出现。     

外商直接投资与区域市场一体化——基于长三角的经验研究

外商直接投资改变了政府和企业的行为模式,从而对市场一体化进程产生深刻的影响。市场替代假说和全球价值链假说对两者之间的关系给出了截然不同的预测。文章在构建长三角地区市场一体化指数的基础上,研究外商直接投资与区域市场一体化之间的关系。研究结果表明,长三角地区的市场一体化水平在不断提高;外商直接投资有助于拓展区域市场一体化进程。最后,文章基于地方政府竞争的角度对实证结论进行解释。     

Market structure and rating strategies in credit rating markets – A dynamic model with matching of heterogeneous bond issuers and rating agencies

This paper investigates the impact of rating agencies in a market with asymmetric information. In particular, the role of credit rating agencies as an intermediary between investors and bond issuers is discussed. We model this setting in a dynamic framework in which both rating agencies and bond issuers are of heterogeneous quality. Rating agencies can apply costly research technology to reveal the fundamental nature of bond issuers and engage in rating smoothing. We show that rating smoothing can compensate for low research quality, even though it is accompanied by a quality deterioration in the rating market and market clustering. Moreover, low-quality bond issuers have a general tendency to match with low-quality rating agencies. If investors place a strong emphasis on the reputation of rating agencies, rating markets also tend to be strongly clustered.     

The securitization of gold and its potential impact on gold stocks

We study the market impact of a very successful financial innovation – the SPDR Gold Trust exchange-traded fund (GLD). GLD holds physical gold, and provides traders with a convenient and cost-effective way to gain exposure to gold. We find that after the introduction of GLD, the liquidity of gold company stocks declined, and their adverse-selection risk increased. Over the two-month period after GLD’s introduction, the stocks’ relative effective bid-ask spreads increased by over 15%, while their adverse-selection cost, as measured by the price impact of trades, went up by more than 30%. Gold stocks also experienced significant negative abnormal returns (−12% on average) in the month after GLD started trading. Our findings suggest that GLD attracted traders, especially uninformed traders, away from gold company stocks, and that the resulting negative demand shocks and decrease in the stocks’ liquidity caused their prices to decline. Our results show that existing securities can be seriously adversely affected when a new security enters the market.