An Estimator of β Is Said to Be Linear If

question 28

Multiple Choice

An estimator of β is said to be linear if

• A)it can be estimated by least squares.
• B)it is a linear function of Y1,…,Yn .
• C)there are homoskedasticity-only errors.
• D)it is a linear function of X1,…,Xn .

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Definitions:

Short Run

A period during which at least one of a firm's inputs is fixed, only allowing the firm to vary some inputs while others remain unchanged.

Long Run

In economics, a period of time during which all factors of production and costs are variable, allowing full adjustment to any change in the market.

ARRA

The American Recovery and Reinvestment Act of 2009, a stimulus package aimed at helping the United States recover from the Great Recession.

IGM Poll

A survey conducted by the Initiative on Global Markets (IGM) that gathers opinions from economists on various economic policy issues.