concentration ratio
411ESS switch — The Number One Electronic Switching System, the first large scale Stored Program Control (SPC) telephone exchange or Electronic Switching System in the Bell System, was introduced in Succasunna, New Jersey, in May 1965[1]. The switching fabric… …
42Herfindahl index — The Herfindahl index, also known as Herfindahl Hirschman Index or HHI, is a measure of the size of firms in relationship to the industry and an indicator of the amount of competition among them. Named after economists Orris C. Herfindahl and… …
43Market dominance — is a measure of the strength of a brand, product, service, or firm, relative to competitive offerings. There is often a geographic element to the competitive landscape. In defining market dominance, you must see to what extent a product, brand,… …
44Diversity index — A diversity index is a statistic which is intended to measure the local members of a set consisting of various types of objects. Diversity indices can be used in many fields of study to assess the diversity of any population in which each member… …
45Dominance (economics) — For other uses, see Dominance. For the game theory, see Strategic dominance. Marketing Key concepts …
46Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …
47Perhexiline — Drugbox IUPAC name = 2 (2,2 dicyclohexylethyl)piperidine CAS number=6621 47 2 ATC prefix=C08 ATC suffix=EX02 ATC supplemental= PubChem=4746 DrugBank= C=19 | H=35 | N=1 molecular weight = 277.488 bioavailability= Dose Dependent metabolism =… …
48Lesch–Nyhan syndrome — Lesch Nyhan syndrome Classification and external resources ICD 10 E79.1 ICD 9 277.2 …
49Concentrated photovoltaics — Concentrated photovoltaic (CPV) technology uses optics such as lenses to concentrate a large amount of sunlight onto a small area of solar photovoltaic materials to generate electricity. Unlike traditional, more conventional flat panel systems,… …
50Porter 5 forces analysis — Porter s 5 forces analysis is a framework for the industry analysis and business strategy development developed by Michael E. Porter of Harvard Business School in 1979 . It uses concepts developed in Industrial Organization (IO) economics to… …
