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1.
Worldwide medical facilities differ, and for this reason, the causes of death can vary. Cancer is considered the second leading cause of death after heart disease worldwide, and the same causes of death are observed in the United States (US). Therefore, the purposes of this study are to explore worldwide research levels in the field of cancer and the social collaboration of researchers and institutions in this field. This article examines the structural patterns of international co-authors and co-institutions in science citation index papers in cancer research. The study uses measures from the social network analysis method, including degree centrality, betweenness centrality, eigenvector centrality, and effectiveness, to investigate the effects of social networks in the area of cancer research. Empirical analysis results identify the US is the most central country, followed by Germany, Italy, France, and China, in terms of co-authored networks in this research field. Institutional analysis results indicate that the University of Milan is at the top in terms of degree centrality. The Gustave Roussy Cancer Campus in France and German University of Düsseldorf occupy the second and fourth positions, respectively. The University of California in Los Angeles and Harvard University, both in the US, are at third and fifth positions, respectively. 相似文献
2.
In this paper, we consider a general equilibrium model in which the economies are characterized by the distribution of firms on a set of branches of production; we will show that based on the decisions of the managers of the firms, it is possible to build a dynamic system whose solutions reproduce the possible trajectories of the economy. Once the initial state of an economy is known, that is, the initial distribution of firms, we will have a unique solution for this dynamic system, which will coincide with the evolution of the economy, that is, the evolution of prices and equilibrium allocations.The investment decisions of the administrators of the companies will change the distribution over the set of existing productive branches, which in turn will produce changes in the wealth of consumers who are also shareholders of the companies and then as a consequence, their demand will change, and therefore the equilibrium allocations and prices will too.In most cases, these decisions lead to an improvement in the efficiency of the productive side of the economy and an increase in the welfare of the economy as a whole, but, as we will show, under some particular circumstances, even when it comes to rational decisions from the point of view of administrators, this can lead to undesirable repercussions on the welfare of consumers. Besides, in a neighborhood of a critical economy, even when these decisions may involve small changes in the distribution of companies, they can cause abrupt and unexpected changes in the behavior of the economy, or in other words, they can cause an economic crisis. These are characterized by large changes in the prices, in the demand, and in the supply of goods. In contrast, in a sufficiently small neighborhood of a regular economy, small changes in the distribution of firms produced by the investment decisions of managers do not lead to large changes in the subsequent behavior of the economy. We will exemplify these statements with several numerical examples. 相似文献
3.
The BRICS countries in general, and China and India in particular, are now widely regarded as the areas of the world likely to challenge the economic leadership of the United States (US) and the European Union (EU). A large part of this challenge will come from rapid technological catch‐up by China and India. Yet, despite a recent rise in interest, there is limited knowledge about how and where innovation takes place in these two leading emerging countries and to what extent the Chinese and Indian territorial systems of innovation differ from those in the EU or the US. In this article we explore the geography of innovation in China and India, concentrating on understanding key territorial‐level innovation trends by country, region and technology field, using the US and the EU as benchmarks. We find significant contrasts between the geography of innovation in China and India and that of the US and the EU. First, the degree of concentration of innovative activities in both countries is extremely high. Levels of agglomeration of innovation in the coastal provinces of China, as well as in Delhi and the South of India, significantly exceed the levels of agglomeration found in the USA and the EU. Secondly, China has witnessed a more rapid increase in the degree of concentration of innovation than India. We posit that the differences in the geography of innovation between, on the one hand, China and India and, on the other hand, between these countries and the developed world are rooted in different institutional settings, different systems of innovation and different national innovation strategies. 相似文献
4.
We examine the behavior of stock market prices in several African countries by means of fractionally integrated techniques.
In doing so, we can test for mean reversion in these markets. Our results can be summarized as follows: we cannot find evidence
of mean reversion in any single market, and evidence of long memory returns (i.e., orders of integration above 1 in the logged
stock prices) is obtained in the cases of Egypt and Nigeria, and, in a lesser extent in Tunisia, Morocco and Kenya. Permitting
the existence of a structural change, the break dates take place in the earlier 2000s in the majority of the cases, and evidence
of mean reversion seems to have taken place in the periods before the breaks in most of the countries. If we focus on the
absolute and squared returns, evidence of long memory is obtained in Nigeria and Egypt. Thus, for these two countries, a long
memory model incorporating positive fractional degrees of integration in both the level and the volatility process should
be considered. 相似文献
5.
The impact of the AIDS epidemic in developing countries, and in Africa in particular, is now a matter of great concern to policy makers, managers, and academics on a global scale. The magnitude of the potentially disastrous effects of the disease has severe implications for management in organizations, and, in particular, for HRM. The AIDS epidemic is imposing, and will continue to impose, in the foreseeable future, a significant burden on the way people are managed. Little has been written on HRM in Africa, and the present literature on AIDS and HRM in Western societies is inappropriate and insufficient in relation to African organizations. Fifteen organizations in Tanzania took part in this study, which is probably the first of its kind, to produce a picture of current developments and approaches in managing people under the threat of AIDS. 相似文献
6.
Quality of life relies on also the quality of working context and the group dynamic. Culture of schools, trust and leadership facilitate quality in fostering strategic policies in establishing policy and development. The aim of the research study is to examine the role of leadership, trust for school culture in regard to the perceptions of inspectors. As this research stands on qualitative nature, experiences, perceptions of research participants shape the current understanding to give insights on the role of leadership, trust. In addition, establishing school culture is a part of quality to set policy in terms of development, inspection is a moderation of encapsulating the nature of school culture. Interview was employed to gain understanding and experiences of inspectors in relation to leadership, trust for the school culture. Mission, vision of schools, principles of schools, loyalty to schools, policies, objectives of practices in schools, social interaction in schools. Thematic analysis through laddering was done that five themes were established in examining leadership, trust in the school culture. It is important that employees in the training organization act in a joint view on implementing educational objectives. This is achieved by developing positive attitudes in people and by being able to act constructively with each other. The research results revealed that the inspectors who are currently working at the Ministry of National Education have their views on the mission, vision and leadership of schools and what they think about school culture trust in schools. 相似文献
7.
In this paper, we study the unemployment dynamics in the Belgian regions, Flanders and Wallonia, on the basis of aggregate stratified data covering the period 1973–93. We decompose the aggregate exit probability from unemployment into calendar time and, both observed and unobserved, compositional effects. We find that changes in the inflow composition affect the cyclical fluctuations in unemployment duration only marginally. However, the long‐run improvement in the quality of entrants into unemployment, notably in terms of educational attainment, mitigates the strong upward trend in this duration. This is a new result as none of the existing studies purges the trend in the aggregate outflow rate of the variation in its composition. We also conclude that in Belgium, incidence explains as much as 45% of the evolution of unemployment. Finally, the diverging evolution of unemployment across Flanders and Wallonia predominantly results from a stronger decline in the exit rates from unemployment in Wallonia. 相似文献
8.
As the pace of economic activity moderated in 1995, job growth slowed. Nonetheless, it was enough to absorb the small increase in the supply of labor, with the result that the unemployment rate remained at about the same level it had reached at the end of 1994. In the first quarter of 1995, employment grew at a brisk pace but, as the economy began to slow, job gains fell sharply. Employment growth continued at a much more moderate pace for the balance of the year, so that, by the fourth quarter, nearly 1.9 million jobs had been added to the Nation's payrolls. By comparison, in the fourth quarter of 1994 alone, payroll employment had grown by 1.1 million. Most of the job gains in 1995 were in the services industry group. Manufacturing employment, which had been rising since the fall of 1993, began to decline in the spring, and by the end of 1995, that industry group had lost nearly a quarter of a million jobs. Employment increased in most of the other major industry groups, even though declines in some of their component industries partly offset gains in others. 相似文献
9.
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. 相似文献
10.
In the 1980's, India experimented with deregulation in industry and trade. Manufacturing output accelerated but employment declined, raising doubts about the desirability of the policy reforms. This paper proposes an explanation of employment behaviour in terms of increases in total factor productivity, in actual hours worked, and in the product wage. Using robust methods, it is shown that neglect of hours worked results in a substantial upward bias in estimates of the wage elasticity. Growth in productivity and hours appears to be associated with the reform process, with the increase in hours worked reflecting recovery of lost time. To the extent that hours must hit a ceiling, the drop in employment on this count is expected to be temporary. Other things being equal, employment prospects appear to depend considerably on the course of productivity growth. 相似文献
11.
社会管理和公共服务是现代城市的两大基本职能.保障城市公共安全,实施防灾减灾是城市履行管理与服务职能的重要内容.首先,综述国际城市防灾减灾的合作和研究的主要进展;其次,基于城市生态经济系统特征,探讨城市灾害系统的结构功能和形成机制,分析中国城市灾害风险的特征;再次,提出中国城市防灾减灾体系的建设战略,包括:确立城市安全发... 相似文献
12.
20世纪80年代以来,随着全球产业结构调整和国际分工的日益深化,服务业已取代制造业成为对外投资领域的主流。与此相适应,我国服务业吸收的外商直接投资也呈现快速增长的态势。但由于我国服务业发展滞后,服务体系不完善,法律法规不健全,一定程度上制约了我国对服务业外资的吸收和高效利用。文中对我国服务业在利用外商直接投资中出现的问题及其应对策略进行初步的探讨。 相似文献
13.
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. 相似文献
14.
Despite significant advancements, women executives and professionals have continued to complain about the existence of a glass ceiling in the UK, the USA, Canada and other countries that espouse equal employment opportunities. Little is known about the role and plight of women in the workforce in Islamic countries. In general, Western societies perceive the participation of women in the workforce and their upward career mobility as very limited in Islamic societies. This article seeks to address this limitation in the field by unravelling some of the myths and realities pertaining to women in the Iranian labour force. Based on interviews with 12 Iranians, reality checks were performed on five widely held perceptions of the status of women in Iran, including women's participation in the labour force, appointment to managerial/professional positions, representation in higher education, segregation in the workplace, and Islam's attitude towards non‐Muslims. These issues are discussed in the contexts of foreign direct investment in Iran and other Islamic countries. Implications for international human resource management, including the assignment of women expatriates to Iran and other Islamic nations, are also addressed. 相似文献
15.
Nancy Reid was born in September 1952 in Niagara Falls, Canada. She graduated from the University of Waterloo with a Bachelor in Mathematics and a major in Statistics in 1974. She pursued her training in Statistics at the University of British Columbia (UBC) where she obtained a Master's in Applied Mathematics in 1976 and at Stanford University, where she graduated with a PhD in Statistics in 1979. After spending one year at Imperial College in London visiting Sir David Cox, she joined UBC as an Assistant Professor in the Department of Mathematics, where she had an important role in the creation of the Department of Statistics. In 1986, she moved to the University of Toronto, where she has been since then as a faculty in the Department of Statistics. Nancy has served as Chair of the Department between 1997 and 2002. Nancy's research in conditional inference, higher order asymptotics and composite likelihood has been influential in Statistics. Her outstanding contributions to Statistics were recognized nationally and internationally with many awards, including the President's Award of the Committee of Presidents of Statistical Societies (COPSS), Gold Medal awarded by the Statistical Society of Canada and Elected Foreign Associate of the National Academy of Sciences. She received the Doctor of Mathematics, Honoris Causa, University of Waterloo. Nancy served with distinction as Editor of the Canadian Journal of Statistics and President of the Statistical Society of Canada and President of the Institute of Mathematical Statistics. In 2014, she was appointed as Officer of the Order of Canada for her outstanding achievements, exemplary leadership and service to Canadians. The following conversation took place at the JSM 2016 in Chicago, on August 2 and 3, 2016. 相似文献
16.
The aim of this article is to collect and make up the most important contributions in the economic literature in relation to the special characteristics of the management of the environmental innovation in the SMEs. Specifically, we want to show their strengths and weaknesses in order to make up the main conclusions of these analyses with the literature in relation to the way Public Administrations face this situation. The scarce development in the SMEs in respect to their environmental strategy may be a consequence of the links among some of the following factors: limited financial resources, the type of organizational structure, a little influence of the strategic adaptation competence against the changes in the SMEs, the managers’ scarce environmental training and short term orientation, the staff’s scarce environmental awareness and training, the status of the environmental issues in the company, the SMEs’ lower ability to obtain highly radical innovations, the scarce influence of manufacturing process flexibility in the most advanced states of the environmental strategy in the SMEs and their lack of relation ability with external stakeholders—very important in the success of the most advanced environmental approaches. Besides, the lack of regulation neutrality must be added as a key difference among companies of different sizes. So specific actions seem be necessary, such as technological advice and awareness, and training programs in order to cooperate with external stakeholders. 相似文献
17.
Growth in legal gaming in the United States over the past quarter century or so is well-documented. One important factor fueling this growth was the passage of the Indian Gaming Regulatory Act of 1988, which permitted Native American tribes to establish, under agreements or “compacts” with the states in which they are located, casinos offering what is known as Class III gaming: slot machines, blackjack, roulette, and other games. Since the passage of the Act, there have been 21 Native American casinos established in Michigan. Also, three non-Native American casinos opened in Detroit in 1999 and 2000. This growth in the number of casinos has sparked a wide-ranging debate over the social and economic impacts of casino development.The purpose of this research is to focus on the crime issue in the broader casino debate. We investigate the impact of these Michigan casinos on the rates of burglary, robbery, larceny and motor vehicle theft (property crimes) in casino host counties as well as in nearby counties. We employ a panel data set with annual observations on all 83 Michigan counties for the period 1994–2010. The dataset includes crime rates taken from the FBI crime data series, variables for the presence of a casino in a county or in a nearby county, the scale of a casino's operations as measured by revenues, and a variety of control variables suggested by the broader literature investigating the factors that determine crime rates generally.Our results suggest that in most cases the property crime rates studied are not affected by the presence or size of a casino in a county or in a nearby county. The largest such impact, which is negative, is for motor vehicle theft. The size of a casino does have a small positive effect on the motor vehicle theft rate. 相似文献
18.
英语作为一门国际化语言在21世纪的经济全球化大环境下扮演着桥梁与纽带的角色。无论是国际会议的召开,还是经济贸易的往来,在口语与书面用语中作为信息交流与传递的工具,都离不开英语这门语言。因此,大力发展英语教育对促进经济发展有重要作用。同时,经济的发展也能带动英语教育的发展。目前我国从事英语教育的培训机构数不胜数,已经从幼儿园到高等教育都在推广英语作为第二门应用语言,说明我们充分认识到英语在人才培养中的重要性以及未来英语人才在经济发展中的重要作用。 相似文献
19.
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. 相似文献
20.
中小企业已成为我国国民经济的重要组成部分,对经济发展和社会稳定起着举足轻重的促进作用。本文首先通过分析中小企业财务管理的现状,揭示了中小企业普遍存在资金严重不足,企业发展缺乏源动力;投资缺乏科学性,投资能力较弱;财务管理缺乏人才,管理模式僵化等问题,说明存在问题的财务管理已不能帮助企业面对激烈的市场竞争。其次就其产生的原因逐一加以剖析。最后本文有针对性地提出了解决中小企业财务管理中存在问题的对策。 相似文献
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