After Having a Monopoly in the Diamond Market for Many

question 126

Multiple Choice

After having a monopoly in the diamond market for many years, by 2000, De Beers faced competition from other companies.To maintain its market share, De Beers

• A)began buying so-called "blood diamonds" in order to keep these diamonds out of the control of other diamond companies.
• B)adopted a strategy of differentiating its diamonds. Each of its diamonds is now marked with a microscopic brand.
• C)bought diamond mines in Canada and Russia that had been its competitors.
• D)lowered the prices of its diamonds to make the market appear less profitable to potential competitors.

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Definitions:

Standard Error

A statistical measure that describes the accuracy with which a sample distribution represents a population by quantifying the dispersion of sample means around the population mean.

Critical Value Approach

A method of statistical testing which involves comparing the calculated value of a test statistic to a critical value to decide whether or not to reject the null hypothesis.

Null Hypothesis

A statement used in statistics that proposes there is no significant difference or effect, serving as the default assumption to be tested against an alternative hypothesis.

Test Statistic

A statistic (a function of the data) used in statistical hypothesis testing to decide whether to reject the null hypothesis.