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Using a graph,explain how expectations of future price changes affect the demand curve for a product.
Market Share
The portion of a market controlled by a particular company, often expressed as a percentage of total sales in that market.
Herfindahl Index
An indicator of how concentrated a market is, calculated by squaring the market shares of all firms in the market and adding these squared values together.
Four-Firm Concentration Ratio
A measure indicating the total market share held by the four largest firms within an industry, used as an indicator of market competitiveness.
Industry Sales
The total revenue generated by all companies within a specific sector or industry.
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