The problem of autocorrelation refers to
A) independent variables in a regression equation whose values are closely related to each other.
B) insufficient data to estimate regression coefficient values.
C) regression coefficient values which are not significantly different from zero.
D) regression equation variables which exhibit a similar pattern in their values over a number of time periods.
D
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Which of the following is a question answered with positive economic analysis?
A) If the college increased its eligibility requirements for enrollment, will class sizes decline? B) Should the college charge higher tuition for part-time students? C) Should the college eliminate its athletic program to cut its costs? D) Should the college reduce tuition for out-of-state residents?
According to Chinese law, to be a dominant firm, can be all of the following except which one?
A) one of two firms in the market that have a combined market share of more than 66.6 percent B) one of three firms in the market that have a combined market share of more than 75 percent C) an individual firm with a market share of 50 percent D) one of four firms in the market that have a combined market share of more than 80 percent
Asymmetric information often makes it difficult to tell good from bad. This is a problem of
A) moral hazard. B) negative externalities. C) adverse selection. D) moral hazard and not adverse selection.
If the stock of physical capital remains constant while employment rises, output
a) initially declines, then eventually rises b) increases at an increasing rate c) remains constant in real terms d) increases at a decreasing rate e) fluctuates with the price level