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John M. Vernon has written:

'A note on estimation in market structure-performance studies' -- subject(s): Advertising, Marketing, Mathematical models, Profit

'Concentration, promotion, and market share stability in the pharmaceutical industry' -- subject(s): Advertising, Drugs, Marketing, Mathematical models, Pharmaceutical industry

'Profitability and market structure' -- subject(s): Advertising, Marketing, Profit

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11y ago

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