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In the Cournot model, each firm chooses its actions on the assumption that its rivals will react by changing their quantities in such a way as to maximize their own profits.
Margin of Error
An expression of the amount of random sampling error in a survey's results, indicating a confidence range within which the true value lies.
Sampling Error
The difference between a sample statistic and the corresponding population parameter, arising due to the fact that the sample is not a perfect representation of the population.
Biased Estimator
An estimator that, on average, does not equal the true parameter of the population, indicating a systematic error in estimation.
Population Parameter
A numerical value summarizing a characteristic of an entire population, such as mean or variance.
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