基于网络DEA的科技创新型企业投资效率评价分析

企业投资效率是影响企业价值的关键因素。本文在划分投资转化过程子阶段的基础上构建投资效率评价模型及指标体系,运用二阶段网络DEA方法测算我国创业板科技创新型上市公司2012～2014年投资效率值及非效率投资的改进程度。实证结果表明,科技创新型上市公司利润产生子阶段投资效率较低,并且研发支出、无形资产以及长期投资三方面的投资冗余现象明显,但是多数上市公司两个阶段的投资效率随着时间的推移逐渐趋向双重高效。     

丝绸之路经济带投资结构对产业结构调整的空间效应——以国内段为例

本文运用全国与丝绸之路经济带沿线9省区市2003～2014年的面板数据,通过建立空间计量模型,分析了投资结构对产业结构变动的空间效应。结果表明：（1）区域产业结构的变动存在显著的空间依赖性;（2）与全国比较,丝绸之路经济带投资结构对产业结构的调整具有显著的促进作用。非公共基础设施投资对产业结构合理化、高级化的积极作用最大,尤其是对西北地区产业结构合理化,西南地区高级化的作用较大,而对全国呈现出消极效应;（3）硬性基础设施投资对西北地区产业结构合理化和高级化的积极作用最明显,而软性基础设施投资对西南地区产业高级化的贡献较大。表明调整丝绸之路经济带投资结构能够提高本地和相邻地区产业结构的优化升级。     

The role of geographic distance in completing related acquisitions: Evidence from U.S. chemical manufacturers

Acquisitions often do not reach completion when buyers' initial evaluations change during post‐announcement due diligence investigations, but research offers only limited explanations for when such deal‐cancelling new information will be most common. Drawing from the spatial geography and acquisition strategy literatures, we argue that successful completion of acquisitions can be partially explained by their spatial characteristics. We start by predicting that geographic distance has a particularly strong impact in reducing the likelihood of completing related acquisitions; we then identify contingencies based on multiple forms of direct, contextual, and vicarious experience that can help acquirers overcome the constraints of distance. We test the arguments with a sample of 1,603 domestic acquisitions announced by 724 U.S. chemical manufacturing firms between 1980 and 2004. Copyright © 2015 John Wiley & Sons, Ltd.     

The relevance of political affinity for the initial acquisition premium in cross‐border acquisitions

Research summary : In the context of economic nationalism, we investigate the relevance of political affinity between countries to the initial acquisition premium offered in cross‐border acquisitions. Political affinity is defined as the similarity of national interests in global affairs. We argue that political affinity affects how foreign acquirers anticipate their bargaining position in their negotiations with domestic target firms. With decreasing political affinity, the host government becomes increasingly likely to intervene against foreign firms in an acquisition deal. Consequently, foreign acquirers need to provide a more lucrative initial offer to dissuade target firms from leveraging government intervention to oppose the acquisition. Our prediction is supported by strong evidence that political affinity, as revealed by UN general assembly voting patterns, leads to lower initial acquisition premiums. Managerial summary : Media reports suggest that politics plays an important role in international business transactions. However, we still know very little about how bilateral political relations affect corporate decision‐making. In this article, we analyze the influence of the quality of bilateral political relations on the bidding behavior of foreign acquirers in cross‐border acquisitions. We argue that the host government is more likely to intervene against the foreign acquirer during deal negotiations if the quality of bilateral political relations is poor. A lower political affinity between countries therefore decreases the bargaining power of the acquirer and pushes up the initial bid premium the acquirer has to offer to the local target. Our empirical results confirm our argument. Copyright © 2015 John Wiley & Sons, Ltd.     

房地产品牌战略的难点及误区

目前,房地产市场僧多粥少、竞争日益激烈,使得众多的房地产企业将品牌战略作为斩关夺隘的法宝,但在品牌的认识上和实施品牌战略的过程中,存在着相当的难点和误区,这对品牌的创立危害极大,只有深刻认识品牌的内涵,在对误区深刻认识的基础上,采取有效措施,才能最终成为真正的品牌。     

The mean-variance investment problem in a constrained financial market

This paper extends the mean-variance analysis and the two-fund separation theorem to a market with some constraints, such as, the incompleteness, prohibition of short-selling, and partial information, with stochastic interest rate, and with stochastic volatility for risky assets. By maximizing a quadratic utility of terminal wealth, we show that the efficient frontier for the problem is a straight line in the mean-standard-deviation diagram. The quadratic utility function exhibits mean-variance efficiency. Our results apply to portfolios of claims in a single period, multiperiod, and continuous time.     

Information systems and technology sourcing strategies of e-Retailers for value chain enablement

In the e-Retail industry, a well-designed IT infrastructure is essential in creating a tightly integrated value chain and delivering high quality service. With intense competition for market share and profits, information systems and technology (IST) sourcing decisions are becoming increasingly important to e-Retail firms to support continued growth and market responsiveness. Drawing on the contingency theory, we examine organizational and environmental factors that influence an e-Retailer's IST sourcing strategy of make versus buy in enabling its value chain activities, and we also look at firm-level performance impacts of IST sourcing decisions that involve bundling across value chain activities. We test the proposed model and hypotheses using a panel data set of 307 firms over the period of 2006–2010. The results show that firms that make transformative IT investments tend to source a smaller portion of IST for their e-Retail value chain activities than firms that pursue automate or informate as their strategic role for IT investment. Capabilities are positively associated with IST sourcing. Firms experienced in e-Retail are more likely to build rather than buy their IST. In addition, we find mimicking behavior for IST sourcing among firms in the same merchandizer category. We find that IT strategic role is strongly associated with growth metric, whereas sourcing decisions predominantly impact operational performance measures. There is partial evidence that alignment between IT strategic role and IST sourcing decisions results in better performance effects. Moreover, complementary IST sourcing of synergistic marketing and sales activities positively impacts Web sales and conversion rate, but the sourcing combination of logistics, operations, and sales activities is associated with lower Web sales and conversion rate.     

国产手机行业发展的金融对策研究

文章在分析国产手机竞争、盈利模式等方面介绍当前国产手机现状的基础上,通过长虹手机为代表的国产手机和国外高端机在投入、方向等方面进行对比,找出存在的问题,并针对当前国产手机的存在的问题,提出相应的金融性对策。     

探析循环物流理念及其系统动力学机制

随着环境问题受到越来越多的关注,可持续发展的循环经济理念日益受到重视,与此同时循环物流应运而生.人们意识到在发展物流过程中应当注重节约资源和环境保护,开始从仅仅关注生产到消费的流通过程转向同时考虑从消费到再生产的流通过程,即逆向物流过程,而循环物流正是正向物流与逆向物流的有机结合.文章就循环物流的理念以及其动力学机制进行了深入分析,重点从分析循环物流的主要功能入手,阐述了循环物流的动力学机制,最后以家用电器逆向物流为例提出了发展循环物流的策略.     

Strategic Location Behaviour: The Case of Japanese Investments in Europe

SUMMARY

We address the question of competition within the location choices of firms. In a framework of agglomeration effects, both spatial and temporal dimensions of the firms' decisions are studied. We show that the competition consequences of preemptive move and optimal time of entry can interfere with the geographical decisions. Our results contrast with those of agglomeration economics models which generally provide extreme results of mono-location. The equilibria described here tend to demonstrate that the relation between competition strength and spatial differentiation remains pertinent in a context of agglomeration economies. A conditional logit empirical study analyses the geographical choice of Japanese firms in Europe. Agglomeration variables, public policies and labour market determinants are tested, highlighting the existence of temporal and spatial proximity in the behaviour of firms. The competition conditions experienced by firms of each specific sector also appear to be important in the location decision of Japanese investors.