Observational studies make an attempt to influence some variables in order to observe how changes in these variables affect outcomes.
Indicate whether the statement is true or false
Ans: False
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When using rational expectations, forecast errors will, on average, be ________ and ________ be predicted ahead of time
A) positive; can B) positive; cannot C) negative; can D) zero; cannot
A country is likely to have a higher sacrifice ratio if
a. contracts are shorter, and people believe the central bank will reduce inflation. b. contracts are longer, and people believe the central bank will not reduce inflation c. contracts are longer, and people believe the central bank will reduce inflation. d. contracts are shorter, and people believe the central bank will not reduce inflation.
An improvement in the quality of U.S. goods would lead to a ________ in the demand for dollars and a ________ in the exchange rate.
A. rise; rise B. rise; fall C. fall; rise D. fall; fall
In a purely competitive industry, each firm:
A. Determines its own price B. Produces a differentiated product C. Can easily enter or exit the industry D. Engages in various forms of nonprice competition