我国第四方物流发展的SWOT分析

第四方物流在我国具有广阔的发展空间,大力发展第四方物流必将使我国物流产业真正得到质的提升。本文利用SWOT分析方法,找出我国第四方物流发展中存在的机遇和挑战,并提出了相应对策和建议,为我国第四方物流发展提供决策依据。     

3-氨基-1-（4-氯苯基）-1氢-苯并[f]色烯-2-碳酸乙酯的合成和晶体结构研究

以氰乙酸乙酯、2-萘酚和对氯苯甲醛为反应原料,得到了3-氨基-1-（4-氯苯基）-1氢-苯并[f]色烯-2-碳酸乙酯,通过X-射线单晶衍射对其结构进行表征。结果表明：晶体属于三斜晶体,空间群为P-1。晶胞参数为：Z=2,a=9.2916（7）A°,b=9.4505（8）A°,c=10.9761（7）A°;α=95.077（2）°,β=98.200（2）°,γ=102.892（2）°,V=922.65（12）A°3;R1=0.0466,wR2=0.1326。     

Competitive Tendering and Contracting in the Public Sector: A Survey

This paper is a survey of the role and impact of competitive tendering and contracting (CTC) policies in the public sector. The paper examines the theoretical rationale for introducing competition in the provision of public services and the methodology by which contracting decisions are reached. It investigates the extent of implementation and nature of outcomes in several countries. A broad sweep of the empirical findings suggests that CTC generates substantial cost savings. Lack of adequate data makes an assessment of the effect on quality more troublesome, and further research is needed     

Aid, Dutch disease, and manufacturing growth

We examine the effects of aid on the growth of manufacturing, using a methodology that exploits the variation within countries and across manufacturing sectors, and corrects for possible reverse causality. We find that aid inflows have systematic adverse effects on a country's competitiveness, as reflected in the lower relative growth rate of exportable industries. We provide some evidence suggesting that the channel for these effects is the real exchange rate appreciation caused by aid inflows. We conjecture that this may explain, in part, why it is hard to find robust evidence that foreign aid helps countries grow.     

中国4A级旅游景区(点)与旅游线路的对应关系分析--以华东地区为例

以华东地区为例，对4A级景区(点)和旅游线路中的对应关系进行了研究，揭示了部分4A级景区(点)在旅游线路中出线频率较低的现象和深层次原因，指出了现有旅游线路产品过于单调而又缺乏新意，其产品设计以及市场开发尚有巨大的发展潜力。4A级旅游景区(点)可以更多地利用旅游线路而增加销售渠道；旅游线路产品的设计应该更趋多样化，充分发挥4A级景区(点)对旅游线路的支撑作用，全面提高4A级景区(点)利用率，以满足不同层次消费者的需求。     

On the implications of market power in banking: Evidence from developing countries

This paper investigates how different degrees of market power affect bank efficiency and stability in the context of developing economies. It sheds light on the competition-stability nexus by documenting and analyzing the complex interactions between a tripod of variables that are central for regulators: the degree of market power, bank cost and profit efficiency, and overall firm stability. The results show that an increase in the degree of market power leads to greater bank stability and enhanced profit efficiency, despite significant cost efficiency losses. The findings lend empirical justification to the traditional view that increased competition may undermine bank stability, and may bear significant implications for stressed banking systems in developing economies.     

粉煤灰合成4(A)沸石最佳工艺条件的研究

研究了利用粉煤灰合成4A沸石的工艺过程，通过正交试验考察了钠铝摩尔比、硅铝摩尔比、水钠摩尔比、晶化温度和晶化时间不同条件的变化对所合成样品钙交换能力的影响，选定了最佳工艺条件，合成的样品具有良好的钙离子交换能力和结晶度。