For a rational consumer, the income elasticity of demand for common salt is:
a. greater than one.
b. smaller than one.
c. equal to one

A country recently had saving of 250 billion euro and domestic investment of 400 billion euro. What was the value of this country's net exports? Show your work

If either the production or consumption of a good generates an external benefit, then the:

A. social demand curve will lie to the right of the private demand curve. B. social marginal cost of the good will equal zero. C. social marginal cost curve will lie to the left of the private marginal cost curve. D. social demand curve will lie to the left of the private demand curve.