一种新型高速数字锁相环的研究

本文针对传统方法实现的数字锁相环(DPLL)工作速率低的问题,通过对一种典型的DPLL的分析,找出影响其工作速率的主要因素,研究并提出了一种全新的高速实现方法,并在实验室进行了数据传输位同步提取实验。     

Exchange Rate Pass‐through: The Role of Regime Changes

We consider the effect on the degree of exchange rate pass‐through of the exchange rate regime in operation. We test the hypothesis that pass‐through will be lower under a float as firms may be reluctant to pass appreciations or depreciations on to their customers when there is a strong chance that they will be subsequently reversed. Taylor’s hypothesis that pass‐through will be lower in a low‐inflation environment is also considered. Both hypotheses are assessed in relation to the price of manufactured imports into New Zealand and we find that, whereas the shift to a float dramatically lowered the degree of pass‐through, the later shift to a low‐inflation regime has no significant additional effect on the pass‐through relationship.     

Financial Market Fragmentation and Reforms in Ghana, Malawi, Nigeria, and Tanzania

This article reports the findings from surveys of formal andinformal institutions and their clients in Ghana, Malawi, Nigeria,and Tanzania. It investigates the hypothesis that reformingfinancially repressive policies would not be sufficient to overcomefragmentation of financial markets because of structural andinstitutional barriers to interactions across different marketsegments. The four countries have substantially fragmented financialmarkets, with weak linkages between formal and informal segmentsand interest rate differentials that cannot be adequately explainedby differences in costs and risks. Nevertheless, the relativelylow transaction costs and loan losses of informal institutionsindicate that they provide a reasonably efficient solution toinformation, transaction cost, and enforcement problems thatexclude their clients from access to formal banking services.The findings imply that financial liberalization and bank restructuringin the African context should be accompanied by complementarymeasures to address institutional and structural problems, suchas contract enforcement and information availability, and toimprove the integration of informal and formal financial markets.     

Can experimental measures of sensitivity to social pressure predict public good contribution?

Public good contributions may be affected by the social demand to contribute that is implicit in them. Sensitivity to social pressure predicts behavior in paired dictator and money burning games; the evidence for effects on public good contribution is mixed.     

Managing health authorities: One member's view

The Government have devoted a lot of energy to improving the quality of management in the Civil Service. Most of this effort has gone on internal management, leaving relatively untouched the management of Departmental and broader government programmes and of outside organisations such as the national health service ‐ with all its regions, districts, family practitioner committees, and medical practitioners. One reason for this imbalance may be that, as successive National Audit Office reports have shown, management in the broader sense is actually rather difficult.     

Effectiveness and Efficiency in Privatization Advertising

The privatization of a number of British nationalized industries during the 1980s involved the use of substantial marketing and, in particular, advertising expenditure. When the same or similar activities are repeated, some experience or learning curve effect can be expected, such that the relative efficiency of performing that activity rises. From an examination of the objectives for and the process of privatization, a learning curve effect might be expected that would result in a progressive lowering of privatization marketing and advertising costs.

The data on privatization from 1981 to 1989 shows the expected learning curve effect for total marketing cost, the total cost reducing over subsequent privatizations. However, the relative cost of advertising first rose and then failed to fall, even when the objectives for privatization changed from widening share ownership to deepening it. The expected learning curve is not then observable, leading to the conclusion that inefficiency existed in the advertising of privatizations, particularly in the late 1980s, and that considerable sums could have been saved if a different strategy had been followed.     

坚持以科学发展观为指导努力建设循环型钢铁企业

攀枝花钢铁(集团)公司(简称攀钢)是国家为建设我国大三线、开发利用攀西资源而建设的特大型钢铁联合企业。40年来,攀钢在党中央几代领导人和国家相关部门高度重视和关心支持下,紧紧围绕攀西地区蕴藏极为丰富却品位较低、冶炼困难的钒钛磁铁矿资源,依靠自主创新、科技进步和“艰苦奋斗,永攀高峰”的攀钢精神,走出一条独具自身特色的资源开发和循环经济发展道路。经过40年发展,攀钢不仅建设成为我国西部最大、中国重要的钢铁生产基地,我国最大、世界第二的产钒企业和国内最大的钛原料、钛白粉生产基地,而且在开发利用资源的同时,坚持以科学发…     

全面推行厂务公开促进湘钢和谐发展

湘潭钢铁集团有限公司是国内大型钢铁联合企业、中国南方专业化的精品线棒材和优质宽厚板生产厂家,实施厂务公开已有9年。9年来,湘钢坚持以人为本,依靠职工办企业,把厂务公开作为加强管理、推进改革、提高效益的有效途径,充分利用一切有利条件,调动一切积极因素,确保企业在良性循环轨道上和谐发展。"十五"期     

A Stochastic Frontier Analysis of Output Level and Growth in Poland and Western Economies

This paper uses Bayesian stochastic frontier methods to measure the productivity gap between Poland and Western countries that existed before the beginning of the main Polish economic reform. Using data for 20 Western economies, Poland and Yugoslavia (1980–1990) we estimate a translog stochastic frontier and make inference about individual efficiencies. Following the methodology proposed in our earlier work, we also decompose output growth into technical, efficiency and input changes and examine patterns of growth in the period under consideration. This revised version was published online in July 2006 with corrections to the Cover Date.     

Fish as the “bank in the water” – Evidence from chronic-poor communities in Congo

Small-scale fisheries in developing countries are often perceived as being a low-productivity and backward informal sector. As a result they are rarely considered in poverty reduction programmes and rural development planning. In this paper, we investigate the dual role of fish as a food and cash crop through data collected in river fisheries in Democratic Republic of Congo (DRC). Fishing in this very remote rural region of DRC is operated both by men and women, as part of a household multiple activity livelihood strategy. The data shows that poor households rely heavily on fishing for their supply of protein-rich food, in particular through women’s subsistence catches. Fishing also appears to be the main source of cash-income for the majority of households, including local farmers. Based on these findings and a review of the literature, the paper argues that small-scale fisheries can play a fundamental role in local economies, especially in remote rural areas where they strengthen significantly the livelihoods of people through their role in both food security and cash-income generation.