Most economic data are obtained
A) through randomized controlled experiments.
B) by calibration methods.
C) through textbook examples typically involving ten observation points.
D) by observing real-world behavior.
Question 2
The reason why economists do not use experimental data more frequently is for all of the following reasons except that real-world experiments
A) cannot be executed in economics.
B) with humans are difficult to administer.
C) are often unethical.
D) have flaws relative to ideal randomized controlled experiments.