DEVELOPING A NEW PARADIGM FOR UK FOREIGN AID

This paper makes recommendations for policy on bilateral foreign aid. The recommendations are based on criticism of the current structure and also a wave of new policy suggestions that have, to date, not been implemented on a significant scale. The paper concludes that we need to move away from the orthodoxy of bilateral aid payments, and experiment in new policy areas with a focus on scientific, independent evaluation of results.     

Performance feedback and export intensity of Chinese private firms: Moderating roles of institution-related factors

Building on the behavioral theory of the firm and institutional view, we examine how performance feedback (i.e., a focal firm’s performance relative to its industry peers) affects export intensity and how institution-related factors moderate this relationship. Using a sample of Chinese private manufacturing firms, we find that positive performance feedback lowers export intensity while the relationship between negative performance feedback and export intensity is insignificant. Moreover, outperforming firms are likely to decrease their export intensity even more when they are located in regions of better institutional development or have political connections. Underperforming firms with political connections tend to increase their export intensity. These findings enrich our understanding of the export behavior of emerging market firms.     

供应链绩效管理:动态信息反馈视角

供应链绩效是受多种因素共同作用的结果,而信息反馈是其中的重要因素。本文首先探讨了激励机制、动态信息反馈与供应链绩效的关系;接着构建了动态信息反馈模型,对供应链的信息反馈机制进行了深入分析;最后在动态信息反馈模型的基础上提出供应链绩效管理的一些基本思路和方法,以达到提高供应链合作伙伴绩效、增加供应链合作伙伴自我意识的、进而提高供应链整体绩效的目的.     

基于DD-LLMS算法的盲自适应判决反馈均衡器

本文把用于自适应线性滤波器的LLMS算法推广到盲判决反馈均衡器,并应用于短波信道的盲均衡。仿真结果表明这种DD—LLMS盲判决反馈均衡算法具有很好的稳定性、较快的收敛速度和较好的跟踪性能。     

论商标平行进口

商标平行进口是一个与知识产权有关的贸易问题。一方面,它涉及知识产权权利人利益的保护问题;另一方面,它与贸易自由化、消费者权益保护问题密切相关。随着经济全球化进程的加快,我国的进出口贸易中将越来越多地出现平行进口问题,应以TRIP协定的相关规定为目标和准则推进我国平行进口问题的研究,完善我国的商标立法。     

On the efficiency of monetary policy rules with flexible prices and rational expectations

The classic Sargent–Wallace–Lucas (SWL) rational expectations-flexible price model is usually interpreted as implying “policy ineffectiveness”: systematic monetary rules cannot affect the distribution of real output. A contrary but not widely-appreciated result of Dotsey and King suggests that there exist “prospective feedback” rules (future money depending systematically on current but as yet unobserved information) which improve output distribution by means of improving agents’ ability to perceive relative prices.We show the Dotsey–King proposition in fact to be a colossal understatement: prospective feedback rules applied vigorously enough (and even “contemporaneous feedback” rules based on current interest rates, provided at least one prospective feedback is active) can in the limit drive price-perception errors to zero. This is not to say such a policy would be desirable. Feedback parameter combinations that reduce current price level misperception tend to produce high forecast error variances with respect to future prices, with attendant loss in capital market efficiency. Whatever the desirable frontier among these different social cost-producing variables, feedback parameters will in general be needed in order to get on the frontier as well as to move along it. Monetary policy clearly produces social gain even in a version of this model which contains no elements of price “friction,” inefficient use of available information, or asymmetry in information as between the government and the public.     

数字并行接收机在时变信道下的信道估计与均衡方法

为了适应高速宽带无线通信的需要,本文在一种高速数字并行接收机(APRX)结构的基础上,提出了一种时变信道下的信道估计和均衡方法。使用伪随机(pseudo-randomnumber,PN)序列相关进行信道估计,将所得到的信道频率响应粗估计按照一个DFT块的长度在一帧内进行线性内插得到信道频率响应细估计,将其用来在频域进行信道均衡。这种结构能适应高速率传输的要求,并且能有效地对抗时间和频率选择性衰落。仿真结果表明,在多径衰落信道下,APRX已经无法工作,而本文提出的数字并行接收机的信道估计和均衡方法有较好的性能,并且该方法实现简单,便于应用。     

数字时代的版权平行进口问题研究

版权的平行进口是一个比较棘手的问题，至今没有统一明确的国际公约对其约束管理。而网络的普遍应用又对版权的平行进口提出了新的挑战。本文在分析数字时代对版权权利耗尽原则的挑战的基础上，对平行进口进行宏观和微观经济分析后，进一步提出我国对于版权的价值取向。     

Leverage and Volatility Feedback Effects in High-Frequency Data

We examine the relationship between volatility and past andfuture returns using high-frequency aggregate equity index data.Consistent with a prolonged "leverage" effect, we find the correlationsbetween absolute high-frequency returns and current and pasthigh-frequency returns to be significantly negative for severaldays, whereas the reverse cross-correlations are generally negligible.We also find that high-frequency data may be used in more accuratelyassessing volatility asymmetries over longer daily return horizons.Furthermore, our analysis of several popular continuous-timestochastic volatility models clearly points to the importanceof allowing for multiple latent volatility factors for satisfactorilydescribing the observed volatility asymmetries.     

基于OpenMP的并行蚁群物流调度算法研究

物流中心调度问题是物流管理的核心问题,基于OpenMP并行编程规范,提出了基于蚁群的物流调度并行优化算法,挖掘多核高性能计算能力,提高物流过程中物件的动态分配效率,提高物流调度系统的可扩展性。