Referring to the table above, the present discounted value of initial wealth plus total income is ________

Traffic congestion is an example of a negative externality because

A) motorists take into account all benefits while driving. B) motorists take into account all costs while driving. C) a motorist's cost of driving spills over and affects other motorists. D) a motorist's benefit from driving spills over and affects other motorists.

What is barter? What is a double coincidence of wants? How does the existence of money affect barter?

What will be an ideal response?