in today’s competitive world employees with engagement can interact with their job and have desirable job performance. since improvement of employees’ job performance is the key of efficiency in all levels of organization, investigation of variables leading to the improvement of job performance is of great importance. thus the purpose of the present research is to analyze the effect of employee...

Drug 'doping' and the use of banned performance enhancing products (PEPs) remains an issue in virtually all competitive sports despite penal consequences and known health risks. The lines distinguishing "fair" and "unfair" performance enhancement have become increasingly blurred. Few studies have explored how attitudes towards legal performance enhancers (drugs/substances, diet, and equipment m...

Today's competitive world has led managers to shift from traditional management to scientific management. Supply chain management is one of key issues in industries because, considering a high number of competitors in today's competitive world, competition has been extended from company level to the level of competition on their supply chain. For any organization seeking to achieve its goals in...

Competitiveness is considered as a key criterion for assessing the success of countries, industries and companies. World Economic Forum defines competitiveness as the set of institutions, policies and factors that determine the level of productivity. Moreover, competitiveness can be defined as acquisition more market share, greater profitability and long-term stability and growth of these indic...

researching the domain of competitive advantage, are carried out at the levels of entity or industry. but a broader perceptive which is the investigation of competitive advantage at national level and more comprehensive level has been rarely taken into account by researchers. to solve this problem, in this article, relying on a efficiency – oriented approach and paying attention to the inputs o...