introduction: differential diagnosis of potential pathogenic entamoeba histological from non-pathogenic entamoeba dispar by a molecular method. material and methods: one pair of primers designed based on sequence of genomic dna coding the 30kd surface antigen of e.histolytica/e.dispar. a 374 base pair pcr product was amplified by using the primers. electrophoretic patterns of pcr product digest...

Beginning with Tiebout (1956), numerous studies have argued that we should expect to see differences in public services among localities as a result of people “voting with their feet”. Here, we consider differentiation in public services as a way of reducing competition among localities (cities). If cities finance their public services with a property tax that generates “tax competition”, we fi...

This paper analyses price competition between two firms producing horizontally and vertically differentiated goods. These are assumed to be credence goods, as consumers can hardly ascertain the quality of the commodities. We provide sufficient conditions for the existence of a unique price equilibrium and we characterize it. To illustrate the model, we adapt it to represent a newspapers’ indust...

This paper provides the first combined theoretical and empirical analysis of the impact of private school entry on private schools’ strategic choices of quality, addressing the concern that school competition can harm poorer students. I develop a model where schools select their quality when (1) the match between a school and a student affects test scores, and (2) wealthier students’ enrollment...

The rapidly changing Kenya market creates challenges for retail stores to retain their customers and build new competitive strategies against modern retailing. study sought analyze the influence of product differentiation strategy on performance supermarkets in Nairobi, evaluate how cost leadership affect Nairobi. target population consisted 147 managers supervisors form 7 main Nairobi City Cou...

Previous studies of the cable television industry have focused on the effects of deregulation and competition on cable service prices. These studies use either the "most popular" tier or the "lowest-priced" tier when comparing prices of different cable systems. However, these tiers often represent a different type of cable service so that previous empirical results based on the assumption that ...

b. The industry for individual-serving juice boxes is dominated by a few very large firms (for example, Minute Maid, Welch’s, and Kool Aid), and there are significant barriers to entry, in part because of the large costs (for example, advertising) involved in gaining any market share of the national market. Products are, however, differentiated—if perhaps only in the minds of consumers. Because...

The purpose of this study is to analyse theoretically the implications of applying the procedure for market delineation used by competition authorities in the EU and in the US. Specifically, we investigate the circumstances under which the procedure will lead to a positive relation between actual market power and the assessed degree of market dominance. Another objective is to test whether the ...

World economic recession, globalization of business environment and advances in technologies pushing manufacturing firms for the adoption of outsourcing strategy in their product development processes. Nowadays, firms are realizing that being alone in product development process do not provide them any differentiation in their production lines. The objectives of such approach are not only for c...