发展优势产业集群提升综合竞争能力——促进长白山地区绿色食品产业升级的探讨

长白山具有得天独厚的资源优势。长白山地区食品工业已初具规模,但还存在总体规模偏小、市场集中度偏低、企业规模偏小等问题。产业集群是提高长白山绿色食品产业竞争力的重要途径,长白山地区应采取积极的对策发展绿色食品产业集群。     

How Environmental Management Competitive Pressure Affects a Focal Firm's Environmental Innovation Activities: A Green Supply Chain Perspective

Recently, environmental management offers firms a source of competitive advantage in the marketplace. The development of environmental innovations is critical to the success of today's firms. Drawing on the Schumpeterian perspective of competition, this research examines how the perception of rival firms' green success influences a firm to pursue and produce environmental innovation through its green supply chain integration activities. Using survey data from 230 firms, a conceptual model is developed and tested using structural equation modeling. We find that the firms in our sample do perceive pressure from their competitors' success in environmental management activities, and thus take supply chain action to pursue integration activities. By differentiating incremental and radical environmental innovation, this study also reveals the role of three dimensions of green supply chain integration (internal, supplier, and customer integration of green product development) on incremental and radical environmental innovation separately. Specifically, findings suggest that green supply chain integration has a positive impact on developing incremental environmental innovation, while only customer integration has a significant positive impact on developing radical environmental innovation.     

Optimal arbitrage strategies on stock index futures under position limits

Assuming the absence of market frictions, deterministic interest rates, and certainty in dividend payouts from the stocks in the index basket, an arbitrageur can lock in the profit of a positive (negative) arbitrage basis in a stock index futures by adopting a short (long) futures strategy. In addition, the arbitrageur may improve the arbitrage profit by adopting the so‐called early unwinding strategy of liquidating the position before maturity, or more aggressively from the long position directly to the short position or vice versa. In this study, we examine the optimal arbitrage strategies in stock index futures with position limits and transaction costs. In our analysis, the index arbitrage basis is assumed to follow the Brownian Bridge process. The model formulation of the option value functions leads to a coupled system of variational inequalities. We determine the values of the arbitrage opportunities and the optimal threshold values of the arbitrage basis at which the arbitrageur should optimally close an existing position or open a new index arbitrage position. In particular, we examine the impact of transaction costs on the index arbitrage strategies. © 2010 Wiley Periodicals, Inc. Jrl Fut Mark 31:394–406, 2011     

法币改革和金圆券改革的比较研究

处于国民党政府统治的不同时期,法币和金圆券两次币制改革呈现不同的特点.导致了不同的历史后果法币改革具有进步的一面;而金圆券改革则完全呈历史的倒退,阻碍社会生产力的发展.     

铜厚膜环行器的研制

采用新型的在大气气氛中烧结的铜厚膜多层导电浆料,应用厚膜混合技术制作了2。2GHz和2.8GHz的环行器。其性能指标可与同类型采用薄膜贵金属制作的环行器相媲美,且工艺简单,成本低及生产周期短。     

迎接我国现代物流发展的新时期

论述了我国流通产业的两次大变革，第一次是市场化，已初步实现，第二次是现代化，方兴未艾。指出物流现代化是电子商务的基础，本质是一种整合能力。现代物流必将深刻影响经济的运行和组织形态的发展，物流现代化也是传统流通企业走出困境的机遇。     

国外经济援助的有效性:基于代际利他视角的研究

消费者是否具有代际利他动机,直接影响消费者的消费和储蓄决策。在本文中,作者利用一个具有代际利他动机的交叠世代模型研究国外经济援助的有效性。作者发现,国外经济援助对于受援国资本积累的影响是非线性的,具有一定的临界值效果。这一发现从一个不同的侧面支持了当代跨国经济增长研究中的"临界值效果"观点,有助于解释关于国外经济援助有效性的经验研究文献中广泛存在的争议;同时,也为进一步的计量研究指出了一个新的模型设定方向。     

企业家成长过程的演化博弈分析

企业家在一国经济发展中起着举足轻重的作用,影响企业家成长过程的因素很多,但在我国由计划经济向市场经济转型的特殊时期,其制度环境(政治、经济和文化等)对企业家成长的影响尤为突出。企业家的成长是一个历史过程,随着市场经济的出现而逐渐演化而成,因此从演化的角度能够更清晰地分析企业家的成长。本文通过模型分析得出:企业家在一个环境中活动所获得的收益和付出的成本将很大程度上影响企业家的成长,安徽模式在短期内难以向江浙模式演变。     

全面推进滨海新区开发建设

按照国家部署,天津滨海新区功能定位是依托京津冀、服务环渤海、辐射"三北"、面向东北亚,努力建设成为我国北方对外开放的门户、高水平的现代制造业和研发转化基地、北方国际航运中心和国际物流中心,逐步成为经济繁荣、社会和谐、环境优美的宜居生态型新城区.