the main objective of this paper is to evaluate the effect of r&d on profitability of high -tech industries with new evidence from the iranian industries carrying four- digit codes. the structure- conduct- performance (scp) paradigm, which is relatively well known in industrial economics and in organization management, provides the theoretical construct that guides our empirical model formu...

Intelligent Transport Systems (ITS) refers to transportation systems which apply emerging hard and soft information systems technologies to enhance the overall performance of transport system, presenting a paradigm shift in transportation. Electronic commerce (e-commerce) with its ability to conduct business transactions through open networks and deliver products and services in a global market...

Myriad studies have been conducted on commodity markets in different parts of the world. However, such yielded inconsistent results various facets market structure and conduct, implying that each may its distinctive characteristics which impact performance. In Sub-Saharan Africa, growth sweet potato industry is hindered by lack information structural characteristics. Kenya’s facing a similar ch...

as claimed by many behavioral scientists, designing should be based on the knowledge of interaction between human and environment. environmental quality is also created in the context in which humans interact with their environment. to achieve such quality, designers should develop appropriate models for explaining this relationship, and this requires an understanding of human nature and the en...

grid computing is an emerging computing paradigm that will have significant impact on the next generation information infrastructure. due to the largeness and complexity of grid system, its quality of service, performance and reliability are difficult to model, analyze and evaluate. this paper proposes a virtual tree-structured model of the grid service. this model simplifies the physical struc...

In this paper we study the effects of a change in an exogenous variable (the fixed cost or a parameter in the demand function) on the output and the number of active firms in a Symmetric Cournot Equilibrium with Free Entry (SCEFE). The results obtained here are different from those obtained in the Cournot model with a given number of firms. In particular, an increase in demand might yield a dec...

1. Introduction 2. Profits are earned in disequilibrium Perfectly competitive equilibrium Assumptions of PCE PCE vs. dynamic strategic positioning (DSP) Profits as residual: Categories of income Measures of entrepreneurial profit 3. The firm as vehicle of strategizing behavior The elemental attributes of the strategizing firm The firm in the dynamic resource economy Strategizing around activiti...