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Perfect competition exists where an industry's concentration ratio is CR n = n/N, where N is the number of firms in the industry. That is, all firms have an equal market share. Low concentration – 40% A concentration ratio of close to 0% implies perfect competition at the least. This is only possible in an industry where there is a very large ...
Formula calculation [ edit ] In Graham's words: "Our study of the various methods has led us to suggest a foreshortened and quite simple formula for the evaluation of growth stocks , which is intended to produce figures fairly close to those resulting from the more refined mathematical calculations."
The following formulas can be used to calculate the volumes of solute (V solute) and solvent (V solvent) to be used: [1] = = where V total is the desired total volume, and F is the desired dilution factor number (the number in the position of F if expressed as "1/F dilution factor" or "xF dilution"). However, some solutions and mixtures take up ...
A simple measure of market concentration is to calculate 1/N where N is the number of firms in the market. A result of 1 would indicate a pure monopoly, and will decrease with the number of active firms in the market, and nonincreasing in the degree of symmetry between them.
When calculating HHI the post merger level of the HHI score and the total increase of the HHI score are considered when reviewing the outcome. If the resulting figure is above a certain threshold then economists will consider the market to have a high concentration (e.g. market X's concentration is 0.142 or 14.2%).
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For example, if there are 10 grams of salt (the solute) dissolved in 1 litre of water (the solvent), this solution has a certain salt concentration . If one adds 1 litre of water to this solution, the salt concentration is reduced. The diluted solution still contains 10 grams of salt (0.171 moles of NaCl).
On the other hand, some investments in physical capital can reduce risk and the value of the risk reduction can be estimated with financial calculation methods, just as market risk in financial markets is estimated. For example energy efficiency investments, in addition to reducing fuel costs, reduce exposure fuel price risk. As less fuel is ...