firm size and its impact on the firm performance examined in all of economics historical periods from different point of view. meanwhile, productivity is one the most important performance index for each firm, therefore so many studies tries to survey firm size impact on it. in iran also, economics literature replete with productivity studies but the impact of size on it rarely seen between the...

this paper is analysing the role of economic reforms on the labour market in iranian industry in economic reform period (1990-2005), and in turn, it is comparing it with closed economic period (1979-1989). in order to do the above comparative analysis, the manufacturing industry has been categorized based on hecksher-ohlin and gause methodology. accordingly, we have some industrial groups, incl...

In light of the under-explored potential of Simon s theory of altruism, the purpose of the present article is to review his explanation of altruism and to point out some of its implications for behavioural economics and theories of economic organization. In the course of the argument, this article relates Simon s theory of altruism to Hamilton s theory of kinship selection and then proceeds to ...

Solid waste management in steel industry is broadly classified in “4 Rs” i.e. reduce, reuse, recycle and restore the materials. Reuse and recycling the entire solid waste generated in the process of steel making is a viable solution in targeting a clean, green and zero waste technology leading to sustainable development of the steel industry. Solid waste management has gained importance in stee...

This note argues about a central analytical inconsistency of Ericson and Pakes (1995). Notwithstanding the explicit claims of the article, the formal hypotheses employed there imply that a firm’s investments do not affect both the evolution of this firm and the dynamics of the whole industry. JEL Classification Numbers: C62, D57, E13, L11.

In this chapter a particular image processing problem existing in quality assurance for steel industry is addressed. Since the quality standards in steel industry are ever increasing, even steel industry starts to use machine vision systems to monitor their product quality. In case of steel coils a particular figure of merit in quality is the roundness (ellipticity) or lack thereof of the coil....

This paper considers non-economic factors involved in the occurrence and sustainability of collusion. Group development among executives of incumbent firms created during the evolution of an industry can stimulate collusion, even in the uncertain introduction stage of a new industry. Certain social conditions and social characteristics of executives related to the industry characteristics of en...

This paper examines how an industry’s productivity is changed by inward FDI occurring in affiliated downstream industries those buying from the focal industry. While controlling for FDI into the focal industry, I find that FDI in downstream industries has a significant negative influence on U.S. manufacturing industries in 1987-1991. Downstream FDI reduces productivity by lowering the demand fo...

This article develops a real options model to study the interaction of industry structure and takeovers. In an asymmetric industry equilibrium, firms have an endogenous incentive to merge when restructuring decisions are motivated by operating and strategic benefits. The model predicts that (i) merger activities are more likely in more concentrated industries or in industries that are more expo...

background: noise is one of the most important hazardous physical factors in industrial environments. this study aimed to determine the effects of noise exposure on serum cortisol level and some blood parameters among male workers of a steel production company. methods: this cross-sectional study was conducted on 50 male workers in a steel production company. in order to assess the changes in b...