This paper develops a structural evolutionary microeconomic model where the forces of chance and selection are at work and matches this model to data. As a concrete example we explore the process of industry concentration by modeling bottom-up starting with profit maximizing firms and introducing stochastic elements at various levels of the market. An estimation procedure is developed to connec...

A Simple Theory of Industry Location and Residence Choice This paper provides a simple theory of geographical mobility which simultaneously explains people’s choice of residences in space and the location of industry. Residences are chosen on the basis of the utility which mobile households obtain across locations. The spatial pattern of industry is determined by the location decision of a scar...

Nippon Steel Corporation led the steel industry in adopting general-purpose personal computers and operating systems as process computer systems for automatic optimal control and developing the middleware NS SEMI SYSTEM in the activity of open system solution. The enhancement of middleware function has made the extension of adopting process field. Nowadays, the renewals of process computers pro...

Toshiaki Takahashi Takaaki Ozawa Hajime Takahashi OVERVIEW: Steel industry control systems tend to be large, comprising motors, drives, PLCs, and process computers among other components. In addition to reliability, they require the speed of response to perform realtime electrical and mechanical control. To achieve this, Hitachi uses the latest computing and information technology. Hitachi is a...

â â â â â  â â â  abstract â  beijing’s industrial structure is service-oriented with a high degree of economic openness, and gdp has maintained rapid growth. this paper analyzes the international financial crisis and the impact of china’s anti-crisis policies on beijing’s economic development as well as its transmission mechanism. impact index (excluding seasonal factors) and arma model ...

iranian banks can not freely determine their interest rates in the financial market. this characteristic causes banking industry unable to perform their duties of financial intermediaries in the transmission mechanism of monetary. in these circumstances, monetary shocks will have a significant and high effect on the alternative markets (like stocks and housing). in this study, we used dynamic s...

This paper examines the GHG emission of industrial process in Shenyang city, in the Liaoning province of China, using the 2006 IPCC greenhouse gas inventory guideline. Results show that the total GHG emissions of industrial process has increased, from 1.48 Mt in 2004 to 4.06 Mt in 2009, except for a little decrease in 2008. The cement industry, and iron and steel industries, are the main emissi...

The present paper thoroughly explores second-best efficient allocations in an adverse selection insurance economy. We start from a natural extension of the classical model, assuming less than perfect risk perceptions. We propose first and second welfare theorems, by means of which we describe efficiencyenhancing policies. Notions of weak and strong adverse selection are promising for interpreti...

The present work has as main aim to make a small introduction about the types of steels, specially the ones used in the construction industry. This material is appreciated in construction due to its many advantages as strengths, resistance, adaptability and flexibility in design, durability, recyclability,...; even thou its also has week points like a low resistance to fire, weak against corros...

this paper studies the effects of six factors including industry type, size, age, ratio of capital to total assets, ratio of debts to assets, and advertising costs on profitability of com companies accepted in tse. profitability is defined at the three standard levels of roa, roat, and roe. the sample used in this research belong to the companies which are accepted in tse vy feb. 2001, and they...