Pick two of the following examples to compare public and private goods. In each case, (b) represents a change in industry organization from (a). For each pair, describe how the two alternatives listed differ on the public-private continuum. Also describe how appropriate public policy might differ as the industry moves from (a) to (b ).

(1) (a) Broadcast television compared to (b) cable television

(2) (a) Print newspapers compared to (b) internet newspapers

(3) (a) Active duty military versus (b) private contractors to perform traditional military duties

(4) (a) Privately owned passenger railroads and transit systems on the one hand to (b) publicly owned Amtrak and publicly owned bus and subway systems on the other.