In estimating a fixed effects model using panel data, which of the following variables will not be effective controls if you use a full set of (cross sectional) fixed effects for individuals?
A. Yearly (cumulative) education attainment for individuals
B. Birthplace of the individual
C. Income taxes paid
D. Year to year changes in income for individuals
Answer: B
You might also like to view...
Treatment of plants with fungicides may result in a phosphorus deficiency. What is the most likely explanation for this observation?
A. Phosphorus transporters in the plasma membrane of the plant cells are destroyed. B. Plant cell walls impede the uptake of phosphorus after fungicide has been sprayed to limit the amount of fungicide that enters the plant. C. ATP synthesis is blocked, so phosphorus cannot be absorbed into plant cells. D. Nitrogen fixation is inhibited. E. Mycorrhizal symbionts are destroyed by the fungicide.
The corpus luteum form from ____
a. the uterine lining b. primary oocytes c. secondary oocytes d. a ruptured follicle after ovulation e. polar bodies
The influence of genetic drift on allele frequencies
increases as a. gene flow increases. b. population size decreases. c. mutation rate decreases. d. the number of heterozygous loci increases. e. random mating increases.
In which era did primitive bacteria first appear?
A) Precambrian B) Paleozoic C) Mesozoic D) Cenozoic