People acting in their own self interest is the basis of the ...

[sammy]

People acting in their own self interest is the basis of the
 
  A) principle of voluntary exchange. B) principle of scarcity.
  C) real-nominal principle. D) principle of supply and demand.

Question 2

GDP calculations tend to exclude all of the following EXCEPT
 
  A) environmental quality.
  B) salaries paid to government employees.
  C) illegal transactions.
  D) work that people do for themselves in their own homes.

[recede]

Answer to Question 1

A

Answer to Question 2

B