Which of the following identifies an advantage of first differencing a time-series?
A. First differencing eliminates most of the serial correlation.
B. First differencing eliminates most of the heteroskedastcicty.
C. First differencing eliminates most of the multicollinearity.
D. First differencing eliminates the possibility of spurious regression.
Answer: A
You might also like to view...
A horizontal merger between two firms occurs when:
a. the products of the merging firms were not related in any manner before the merger. b. one firm is a producer of products, and the other firm is a producer of services. c. one firm is a domestic firm, and the other is a foreign company. d. the firms stood in a buyer-seller relationship before the merger. e. the merger partners were competitors.
Activists and nonactivists both believe that
a. the self-corrective mechanism of a market economy works quite well. b. macro-policy should seek to minimize economic fluctuations, keep the inflation rate low, and establish an environment consistent with strong economic growth. c. discretionary monetary and fiscal policy can be used successfully to speed the adjustment process and reduce the swings of the business cycle. d. policies that stimulate aggregate demand can reduce the long-term rate of unemployment.
Refer to Common Property II. Suppose the common property becomes privately owned. If the owner charges a competitive entrance fee for the right to use the property, social gain will equal
The following questions refer to the accompanying diagram, which shows the benefits and costs associated with the use of a common property.
a. area C + D + F + G + I.
b. area F + G + H + I.
c. area A + B + C + D + F + G + I.
d. area A + B + C + D + E + F + G + H + I.
The production possibilities frontier is the boundary between
A) those combinations of goods and services that can be produced and those that can be consumed. B) those resources that are limited and those that are unlimited. C) those combinations of goods and services that can be produced and those that cannot. D) those wants that are limited and those that are unlimited.