Strategic location choice under dynamic oligopolistic competition and spillovers

This paper investigates firms׳ optimal location choices explicitly accounting for the role of inwards and outwards knowledge spillovers in a dynamic Cournot oligopoly with firms that are heterogeneous in their ability to carry out cost-reducing R&D. Firms can either locate in an industrial cluster or in isolation. Technological spillovers are exchanged between the firms located in the cluster. It is shown that a technological leader has an incentive to locate in isolation only if her advantage exceeds a certain threshold, which is increasing in firms׳ discount rate, in industry dispersion, and in the intensity of knowledge spillovers. Scenarios are identified where although it is optimal for the technological leader to locate in isolation, from a welfare perspective it would be desirable that she locates in the cluster.     

湖南省雷暴地闪特征初步分析

利用湖南省1980-2010年雷暴日数据、2008-2013年闪电数据,分析了湖南省雷暴和闪电变化特征。结果表明:湖南省属于雷暴多发区,年平均雷暴日数分布呈南高北低的趋势,沿雪峰山有个相对高值区,平均雷暴日数在30d到70d之间。湖南省6年的年平均闪电条数35万余条,雷电高发时段为4-9月,其中7月是全年闪电活动最密集的月份。春季(3-5月)闪电逐时分布呈现双峰型,高峰值出现在02时、17时,夏季(6-8月)闪电多集中在下午15-17时,秋季(9月)高峰期集中在15-16时。湖南省闪电密度分布和闪电强度分布,高值区均在娄底、郴州,全省闪电主要强度分布在20-80kA。     

Prices and Wages

Inflationary pressures cooled over the latter months of 2013, with CPI inflation finally moving back to the 2% target for the first time in four years in December. The slowdown in inflation was largely a function of base effects; big rises in food prices in the autumn of 2012 were not repeated last year and increases in domestic energy bills, while still very large, were also lower than in the previous year. In addition, the impact of higher university tuition fees was smaller in 2013 than in 2012, which also helped to slow inflation a little…     

THE EFFECT OF POLICING STRATEGIES: EVIDENCE FROM THE USA

Changes in policing strategies in the USA during the 1990s coincided with a significant decline in crime, particularly in New York City. However, academic research has shown that policing strategies played a relatively minor role in reducing crime in comparison with other factors.     

WORLD OUTLOOK

The world economic recovery, which began in the late summer of 1980, can now be seen as premature, in as much as 1980's short, sharp recession had achieved only a limited reduction in the rate of inflation. Economic policy, particularly in the United States, is once more geared to a reduction in the inflation rate even if this imposes costs in terms of lost output and higher unemployment. The consequent appreciation of the US dollar against the European currencies has - in spite of weakening oil and non-oil commodity prices in dollar terms - produced a further boost to European inflation and a subsequent tightening of policy in some countries, notably West Germany. In these circumstances we expect little or no growth in output in the world economy until the summer of 1982.     

应用立体化文献检索课模式提高读者服务水平

文章分析现阶段广西高职院校文献检索课存在的主要问题,通过对广西20所高职院校开设文献检索课的教学效果进行统计分析,结合现阶段文献检索教学特色,提出在广西区内高职院校的文献检索课中运用立体化教学模式以提高读者服务水平。     

Measuring a boom and bust: The Sydney housing market 2001–2006

The Sydney housing market peaked in 2003. The period 2001–2006 is, therefore, of particular interest since it captures a boom and bust in the housing market. We compute hedonic, repeat-sales and median price indexes for five regions in Sydney over this period. While the three approaches are in broad agreement regarding the timing of the turning point in the housing market, some important differences also emerge. In particular, we find evidence of sample selection bias in our hedonic and repeat-sales data sets (with the former focusing more on better quality dwellings and the latter more on lower quality dwellings). These sample selection biases could in turn cause bias (in opposite directions) in our hedonic and repeat-sales indexes. Median indexes may likewise be biased as a result of an apparent decline in the average quality of dwellings sold in the latter part of the sample. We also find evidence of convergence in prices across regions during the boom and divergence in the subsequent bust.     

Employment relations in small commercial businesses in China

There has been a growing interest in the way patterns of employment relations are changing in China. However, there remains insufficient understanding in employment relations in small private businesses. This study of small businesses in China explores major issues in employment relations in these firms. The finding shows that there are major differences between large and small businesses in China in their employment practices and that considerable similarities exist between small firms in China and those in other countries.     

SIR ALAN WALTERS' ROLE IN THE REVIVAL OF CURRENCY BOARDS1

In a speech given in 2004, at a meeting held at the Institute of Economic Affairs in honour of Sir Alan Walters who died in 2009, John Greenwood explains Sir Alan's critical role in the creation of a currency board in Hong Kong in 1983.     

WORLD OUTLOOK

At the end of 1982 output in the world economy was still falling, although there were signs that the decline had very nearly run its course. We expect a radual recovery to begin in the first half o f 1983. Unlike the recovery which began in the late summer of 1980, when inflation was still in double figures, any upturn in 1983 would be set against a background of declining inflationary expectations and weak oil prices. IJ. as we expect, a falling inflation rate proves a decisive factor in keeping interest rates on a downward path, we forecast that the output will gather pace in I983 and rise reasonably strongly in 1984. Of the 4 per cent rise in industrial production which we foresee in 1984. a large part is due to the fall in real oil prices.     

Attitudes of police managers to different leadership roles in their jobs: An empirical study in Norway

The background for this study is the increased complexity in policing that has become more knowledge‐based and more professional in the past decade. The aim of this article is to present empirical results from a study of attitudes of police managers to different leadership roles in their jobs in two police districts in Norway. A questionnaire was developed and administered among police managers in two police districts in Norway. Participants in leadership programs were selected for this survey research. The Follo police district and Hedmark police district had a total of 130 participants in these programs, with 60 managers from Follo and 70 managers from Hedmark. The research was carried out in March and April 2010. The personnel leader role was found to be most important, followed by the resource allocator role. Responding police managers reported that they felt least competent in the liaison role.     

Using extreme value theory to measure value-at-risk for daily electricity spot prices

The recent deregulation in electricity markets worldwide has heightened the importance of risk management in energy markets. Assessing Value-at-Risk (VaR) in electricity markets is arguably more difficult than in traditional financial markets because the distinctive features of the former result in a highly unusual distribution of returns—electricity returns are highly volatile, display seasonalities in both their mean and volatility, exhibit leverage effects and clustering in volatility, and feature extreme levels of skewness and kurtosis. With electricity applications in mind, this paper proposes a model that accommodates autoregression and weekly seasonals in both the conditional mean and conditional volatility of returns, as well as leverage effects via an EGARCH specification. In addition, extreme value theory (EVT) is adopted to explicitly model the tails of the return distribution. Compared to a number of other parametric models and simple historical simulation based approaches, the proposed EVT-based model performs well in forecasting out-of-sample VaR. In addition, statistical tests show that the proposed model provides appropriate interval coverage in both unconditional and, more importantly, conditional contexts. Overall, the results are encouraging in suggesting that the proposed EVT-based model is a useful technique in forecasting VaR in electricity markets.     

解析我国推进公众参与城市规划的障碍及成因

我国公众参与城市规划的问题一直是一个长期被关注但又推进迟缓的问题.本文在对西方国家公众参与城市规划的理论与实践的深入研究基础上,重点解析我国在推进公众参与城市规划方面存在的主要障碍以及形成障碍的成因,文章同时对加速我国公众参与城市规划的进程提出建设性政策建议.     

A history of research in service operations: What's the big idea?

The purpose of this paper is to trace the history of research in service operations. After discussing the role of services in national economies and the importance of research in service operations, we discuss major trends in service operations research. For simplicity of exposition, this discussion is organized in terms of big ideas that have proved to be influential in setting the research agenda in service operations. In the final section, we identify high-potential research areas where research needs are particularly urgent in the near future.     

A Conversation with James O. Ramsay

Jim Ramsay was born on September 5, 1942, in Prince George, British Columbia. He pursued undergraduate studies at the University of Alberta, where he completed a BEd in 1964 with a major in English and a minor in mathematics. He then specialized in statistics and psychometry, earning a PhD in psychology from Princeton University in 1966. After holding a temporary lectureship in the Department of Psychology at University College London for one year, he joined the Department of Psychology at McGill University, where he rose through the academic ranks. He was chair of his department from 1986 to 1989 and spent sabbatical leaves in Cambridge, Grenoble, and Toulouse. He was named professor emeritus upon his retirement in 2007. Jim is the author of four influential books and over 100 peer‐reviewed articles in statistical and psychometric journals. He developed much of the statistical theory behind multidimensional scaling and is widely recognized as the founder of functional data analysis. Three of his papers were read to the Royal Statistical Society, and another won The Canadian Journal of Statistics 2000 Best Paper Award. The Statistical Society of Canada (SSC) awarded him a Gold Medal for research in 1998 and an honorary membership in 2012. Jim was president of the Psychometric Society in 1981–82 and president of the SSC in 2002–03. The following conversation took place at Jim's home in Ottawa, Ontario, on March 14 and April 4, 2012.     

Fritz Redlich, 1892-1978: The Man and the Scholar

A bstract . Fritz Redlich (1892-1978) played a leading role in the development of the analytic approach in history and in establishing the new institutional history that combines entrepreneurial and business history and sociology. A member, in economics , of the German historical school , he spent 16 years in the chemical industry before the triumph of Nazism forced him to emigrate from Germany in 1936. After teaching at various colleges until 1942, he spent the rest of his life doing research in the libraries of Harvard University , producing several notable works in economic history , including a classical study of American banking , and pioneering in entrepreneurial history.     

Foreign firms in China: modelling HRM in a toy manufacturing corporation

This article reports the study of a large, wholly foreign‐owned toy factory in China. It explores whether foreign direct investment (FDI) manufacturing firms in China inevitably operate in a Taylorist fashion, in contrast to the much praised HR model of blue chip multinational corporations (MNCs) in the country, or whether there is a ‘third way’ in which good HR practices may be adopted on the ground. The article concludes that a more nuanced approach is needed in our study of FDI companies in order to gain a fuller understanding of the institutional and cultural factors at play and of the consequent diversity in the HR and employment practices of FDI firms, instead of being trapped in a simplistic and polarising typological framework of analysis. This study is necessary in light of the growing diversity in the patterns of FDI companies operating in China in terms of their ownership structure, product market, management style and HR strategy, both for managers and for workers.     

Tracing VARDI coefficients: a proposal

ABSTRACT

We propose a new approach for tracing the so-called ‘value-added-(re)distribution-important coefficients’ (in short the VARDI coefficients) in a world input–output model. From the perspective of a selected group of economies, VARDI coefficients may be defined as those elements in world input–output matrix in the case of which a small change in their levels leads to the maximization of a share of this group of economies in value added in global value chains. Due to the rapid development of the World Input Output Database, this approach may be easily applied in empirical research to different groups of countries and sectors in world IO models. In an illustrative empirical case study, we use the new approach in order to answer a question regarding what the main directions of the future macroeconomic policy of the U.S. could be in order to ensure the maximization of the country’s share in global value added.     

竞争战略在我国现代物流企业管理中的应用

基于对我国现代物流企业的分析,竞争战略的选择,结合我国现代物流产业的实际,我国现代物流企业的竞争战略主要有低成本领先战略、产品差异战略、集中化战略和国际化战略。文中主要分析这些竞争战略在我国现代物流企业管理的具体运用,以此来指导我国现代物流企业的实践。     

Discrimination in Employment Provisions in the Mexican Federal Labor Law

The discrimination in employment provisions in employment provisions in the Mexican Federal Labor Law (FLL) are surveyed in a general overview. Employment discrimination in Mexico under the FLL is generally proscribed but is mandated in a limited number of instances. Discriminatory violations can induce various sanctions against transgressing Mexican employers.