The rule-of-thumb for checking for weak instruments is as follows: for the case of a single endogenous regressor,

A) a first stage F must be statistically significant to indicate a strong instrument.
B) a first stage F > 1.96 indicates that the instruments are weak.
C) the t-statistic on each of the instruments must exceed at least 1.64.
D) a first stage F < 10 indicates that the instruments are weak.


Answer: D) a first stage F < 10 indicates that the instruments are weak.

Economics

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Estimates from large macroeconometric models of the U.S. economy suggests that it takes over ________ for monetary policy to affect output and over ________ for monetary policy to affect the inflation rate

A) 1 year; 2 years B) 2 years; 1 year C) 1 year; 6 months D) 6 months; 1 year

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How are scarcity, choice, and opportunity cost related?

What will be an ideal response?

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Using the information in the table shown, if you were to graph the first two columns, you would have graphed which curve?

This table represents the revenues faced by a monopolist.

A. Marginal revenue
B. Market supply
C. Market demand
D. Total productivity

Economics