نتایج جستجو برای: steel industry jel classification

تعداد نتایج: 764569  

2015
Fan Yuqing

At present, with the adjustment of the structure of the steel industry, the steel logistics industry is also engaged in integrating. Steel logistics resource integration is an important problem to be solved. Based on previous research on steel logistics resource integration, this paper proposes a new research perspective on steel logistics resources integration: supply-demand network of steel l...

2011
Luis Cabral Zhu Wang Daniel Yi Xu

Taking the early U.S. automobile industry as an example, we evaluate two competing hypotheses on geographic concentration of industry: local externalities versus employee spinoffs. Our findings suggest that both forces contribute to industry agglomeration through their specific channels, and the spinoff effect can be viewed as a special form of local externalities. Calibrating our model to the ...

Journal: :تحقیقات اقتصادی 0
کاظم یاوری اقتصاد دانشگاه تربیت مدرس مهدیه رضاقلی زاده مجید آقایی سید محمدحسن مصطفوی پژوهشکده ی اقتصاد دانشگاه تربیت مدرس

tourism industry has been the fastest and the most income-generating industry in the first decade of the third millennium. it has been for many countries including some of oic member countries a source of foreign exchange and contributed into their development. in this paper, we try to test empirically whether tourism expansion has had any significant effect on economic growth of oic member cou...

Journal: :تحقیقات اقتصادی 0
تیمور رحمانی دانشکده‎ی اقتصاد دانشگاه تهران شهرام شفیعی

the convergence hypothesis maintains that an economy whose productivity lags behind other economies has a potential to grow faster. in other words, this economy can experience faster economic growth through absorbing, accepting, and using available technology experience. in this study, we have examined the relationship between tfp of industry sectors and regional convergence in iran's prov...

2006
Arthur H. Goldsmith Darrick Hamilton

JEL Classification Code(s): J 31, J 71) "Perceptions of Discrimination, Effort to Obtain Psychological Balance, and Relative Wages: Can We Infer a Happiness Gradient?" There is a substantial literature that finds a linkage between happiness and relative economic well being as measured by earnings or wages. There is also a well documented racial gap in wages. One explanation for this is disparat...

Journal: :international journal of occupational hygiene 0
reza rostami m.sc. student of occpational health, school of health and nutrition, shiraz university of medical sciences, shiraz, iran. zahra zamanian assistant professor of occupational health department, school of health and nutrition, shiraz university of medical sciences, shiraz, iran. jafar hasanzadeh associate professor of epidemiology, school of health and nutrition, shiraz university of medical sciences, shiraz, iran.

improvements in knowledge as well as technology and industrial workers’ exposure to adverse factors have caused more attention to be paid to the workers’ occupational health. according to the report by w.h.o., noise, as one of the most important physical factors of workplace, causes 4 million dollars health damage every day. noise can also reduce the workers’ morale as well as motivation and, c...

ژورنال: :مجله تحقیقات اقتصادی 2012
رحمان خوش اخلاق مصطفی عمادزاده علیمراد شریفی مهدی صادقی شاهدانی علی ناظمی

in most of the developing countries, particularly in asian countries, the initial step of electricity industry restructuring has begun by spot market design. in addition, electricity industry, all around the world, is approaching competitive markets. meanwhile there are many unanswered questions including deregulation mechanism. in this new framework, producers are considered as private compani...

2005
Emin M. Dinlersoz Glenn M. MacDonald

This paper analyzes the evolution of firm size distribution in the U.S. manufacturing industries over 35 years from 1963 to 1997. Firm size distribution undergoes systematic changes, the magnitude and the direction of which depend on whether an industry experiences a phase of growth, shakeout, stability, or decline. The observed patterns have implications for the theories of industry dynamics a...

Journal: :IJSDS 2011
Lafang Wang Rui Xie Jun Liu

This paper measures the direct and indirect contribution made by iron and steel industry in the economy of China and assess the differences between China and other steel producing countries. With this aim in view, the input-output modelling is used to detect the industrial linkages known as backward and forward linkages of eight iron and steel producing countries, including China, USA, Japan, G...

2014
Andrea Bonaccorsi Paola Giuri

This paper proposes a new approach to explain the long-term evolution of a supplier industry. The network of vertical relations between suppliers and buyers is identified as a determinant of the concentration of the supplier industry and of the dynamics of market shares. The vertical structure of the industry is captured by collecting information on all vertical relations between dyads of firms...

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