A note on the projection properties of Hadamard matrices obtained by the first Payley construction

We show that the projections on four factors of an arbitrary orthogonal array of strength 2 allow the estimation of main effects and two-factor interactions when all other effects are assumed to be zero, if those projections satisfy the bounds given by Weil<img src="/content/c9lbcy286wrv25l3/xxlarge8217.gif" alt="rsquo" align="BASELINE" BORDER="0">s theorem. The only exceptions are the Hadamard matrices of orders 16 and 24. A consequence is again the estimability of main effects and two-factor interactions for the projections on four factors of the first Payley construction for arbitrary run size.     

Does the transformation of accounting firms’ organizational form improve audit quality?Evidence from China

In this study,we examine the effects of the transformation of accounting firms’organizational form on audit quality.We find that the transformation from limited...     

Between Late-Industrialisation and Globalisation: The Hybridisation of Labour Relations among Leading South Korean Firms

South Korea's (hereinafter Korea) labour relations illuminate the possibilities for the ‘hybridisation’ of non-liberal capitalism under globalisation. Unlike the well-known German and Japanese advanced non-liberal capitalisms, Korea appeared to be far less conducive to ‘hybridisation’. First, inclusive labour practices were not well developed. Second, it had introduced comprehensive economic liberalisation following the financial crash of 1998. Despite these unfavourable conditions, leading Korean firms have tended to maintain or even introduce non-liberal practices than to discard them. The resulting melding of non-liberal and liberal practices (‘hybridisation’) can be traced to three legacies of late-industrialisation: state inclination to intervene during crises; countervailing power of labour at leading enterprises; and the intensity of big business rivalry as a force for the assimilation of inclusive practices. The effects of these legacies in generating mixed practices will be illustrated using firm-level case studies from Korea's two leading export sectors. It will also be argued that Korea's pattern of labour relations hybridity is not conducive to convergence with extant forms of advanced capitalism. Hence Korea is more suitably denoted as a form of <i>late-industrialisation hybrid capitalism</i> whose experience is relevant to other late-developers as they achieve ‘advanced’ status.     

一种用于高速QPSK解调的四次方环载波恢复电路

为解决高速QPSK信号全数字解调的技术瓶颈问题,采用模拟方案 ,研制了一种四次方环载波恢复电路,重点介绍了应用混频器上变频特性的宽带平方电路以 及锁相环（PLL）载波提取电路的设计过程。测试结果表明,该载波恢复电路可以完成载频 为720 MHz、码速率100 Mbit/s～1 Gbit/s范围的QPSK信号同步载波恢复,解 决了高速信号相干解调中载波同步的关键技术问题。     

Two new proofs of Afriat’s theorem

Summary. We provide two new, simple proofs of Afriat<img src="/content/b2da6l6dvjljxrl0/xxlarge8217.gif" alt="rsquo" align="BASELINE" BORDER="0">s celebrated theorem stating that a finite set of price-quantity observations is consistent with utility maximization if, and only if, the observations satisfy a variation of the Strong Axiom of Revealed Preference known as the Generalized Axiom of Revealed PreferenceReceived: 12 June 2003, Revised: 9 October 2003, JEL Classification Numbers: D11, C60.<i>Correspondence to</i>: A. Fostel     

Measuring performance in the presence of stochastic demand for hospital services: an analysis of Belgian general care hospitals

Since demand for hospital services is subject to substantial variability, the relationship between uncertain demand, excess capacity, hospital costs and performance should be investigated thoroughly. In this paper a waiting time indicator to proxy hospital standby capacity is incorporated into a multi-product translog cost function for Belgian general care hospitals. The indicator is derived from queuing theory and improves on the conventionally used (inverse of the) occupancy rate. The multi-product stochastic frontier specification allows calculation of cost elasticities and marginal cost of seven hospital departments, as well as the degree of economies of scale and scope and enables identification of differences in efficiency. <table class="Contact"> <tbody> <tr> <td valign="top"><img alt="Contact Information" src="/images/contact.gif" border="0"></td> <td><strong>Mike </strong><strong>Smet</strong><strong></strong><strong>Email: </strong></td> </tr> </tbody> </table>     

不能把"社会主义初级阶段"混同于"共产主义社会第一阶段"--与方生同志商榷

社会主义初级阶段≠共产主义社会第一阶段,两者是完全不同领域的范畴;马克思所论述的旧社会痕迹≠社会主义初级阶段存在的非公有制经济.     

Macroeconomic adjustment with managed exchange rates and capital controls: Some lessons from China

This paper examines the performance of capital controls and exchange-rate management when the economy finds itself in dark corners. These are times when the real sector experiences a sequence of prolonged negative shocks from world demand, while the central bank faces low world interest rates on its foreign-exchange reserve holdings. We examine two regimes, one of a fixed exchange rate with strong capital controls and another with a more open capital account with a managed exchange rate. We show how this model replicates recent experiences of China as it moved from a relatively fixed exchange rate regime with strong capital controls to a more flexible exchange rate regime with a more open capital account. Our results show that capital-account liberalization should be accompanied by domestic price liberalization to avoid large losses in foreign exchange reserve and jumps in unemployment during dark corners in the more open regime.     

铁路局管辖范围增大的管理问题思考

针对南昌铁路局管辖范围扩大后面临的实际问题,按照现代企业组织管理的基本原理,提出实施分层分类、分层分权管理,并对应该做好的产业结构和生产力布局调整、建立管理新机制、规范分层管理决策程序、提高人员素质等相关工作进行了探析,以期对铁路局直管站段的管理工作有所裨益。     

农村金融:现实挑战与发展选择

农村金融体制的改革严重滞后，已经成为农村发展的重要障碍。当前中国农村经济已进入新畴发展阶段，其面临的主要矛盾是由增加供给转变为提高效益，传统的数量扩张为主的增长方式受到严重挑战。农村和农业发展对资金要素的依赖程度日趋增强．然而现实表明：由于农村正规金融组织功能不全、农村合作金融明显缺位，农村金融抑制变得更加严重，农村非农产业和农民获得金融服务极为困难已成为普遍存在的现象。