The statistical analysis of economic data is referred to as:

When an economist evaluates a positive statement, he or she is primarily

a. examining evidence. b. acting as a scientist. c. concerned with verifying how the world is. d. All of the above are correct.

After Hurricane Katrina, the supply curve for oil shifted to the left, and as a result

A. gas prices remained at the equilibrium price. B. there was a corresponding shift of the demand curve. C. a new equilibrium price was reached. D. the equilibrium point moved along the supply curve.