1. Which of the following is a justification for taxes ?
A. the ability to to pay principle
B. the progressive tax principle
C. the proportional tax principle
D. the regressive tax principle
E. the desire of goverments to spend more funds
2. Households act as suppliers when they provide :
a. goods and services to firms and goverments
b. resources to firms and goverments
c. tax payments to goverments
d. the demand for only what firms supply or make availible
e. money to firms in exchange for goods and services.