For a market with a linear demand curve and constant marginal cost of production, why are the reaction functions for the Cournot duopoly sellers also straight lines?

A) The reaction functions do not have to be straight lines, and they are only drawn this way in the book to keep the figures simple.
B) Cournot thought the lines would be straight, but this was proven wrong by other economists.
C) Marginal revenue is always linear when marginal costs are constant.
D) We know that the marginal revenue curves for linear demand curves are also straight lines.

D

Economics

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Whenever the general level of prices rises because of continual increases in aggregate demand, we say that the economy is experiencing

A) supply-side inflation. B) monetary stagflation. C) demand-side inflation. D) aggregate supply shock.

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Joanne left her last job, in which she was earning $50,000, in order to form her own consulting business. Her revenues for the first year of consulting were $200,000

During that year, she hired two assistants for $25,000 each and spent $25,000 on office equipment. In addition, she incurred $75,000 in miscellaneous expenses. Her economic profit that first year was A) $0. B) $50,000. C) $200,000. D) $75,000.

Economics