For quasi-experiments,
A) there is a particularly important potential threat to internal validity, namely whether the "as if" randomization in fact can be treated reliably as true randomization.
B) there are the same threats to internal validity as for true randomized controlled experiments, without modifications.
C) there is little threat to external validity, since the populations are typically already different.
D) OLS estimation should not be used.
Answer: A) there is a particularly important potential threat to internal validity, namely whether the "as if" randomization in fact can be treated reliably as true randomization.
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Suppose you borrow $1,000 at an interest rate of 12 percent. If the expected real interest rate is 5 percent, then the rate of inflation over the upcoming year that would be most beneficial to you would be a rate of inflation
A) greater than 7 percent. B) equal to 7 percent. C) less than 7 percent. D) equal to 0 percent.
One would speak of a change in the quantity of a good supplied, rather than a change in supply, if
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