The following OLS assumption is most likely violated by omitted variables bias:
A) E(ui Xi) = 0
B) (Xi, Yi) i=1,..., n are i.i.d draws from their joint distribution
C) there are no outliers for Xi, ui
D) there is heteroskedasticity
Answer: A
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Refer to Table 7-2. Select the statement that accurately interprets the data in the table
A) Madison has an absolute advantage in making empanadas and tacos. B) Austin has an absolute advantage in making empanadas and tacos. C) Madison has an absolute advantage in making empanadas and Austin has an absolute advantage in making tacos. D) Madison has an absolute advantage in making tacos and Austin has an absolute advantage in making empanadas.
We refer to the whole class of goods that firms will ________ in a completely unregulated market economy as public goods.
A. underproduce B. overproduce C. not produce at all D. Both A and C are correct.