In devising rate caps under the 1992 Cable Act, the FCC measured the e
ffects of market power in cable TV by comparing overbuild franchise ar
eas (served by more than one cable operator) with monopoly areas. This
paper draws attention to, and corrects, several shortcomings in the F
CC's analysis. We conclude that the overbuilds' rates are, on average,
12 percent lower than monopoly rates (and not 16 percent as estimated
by the FCC, a difference of approximately $700 million in terms of an
nual cable revenues). Furthermore, overbuild operators offer better se
rvice quality than monopoly systems; the average overbuild offers upto
34 percent more non-broadcast channels.