90
World 2
.
w
States varied in restrictions
on the advertising of
prescription eyeglasses
(1963 and before).
w
Prices in restrictive states
higher by 25 to 100 per cent
than in laissez-faire states.
w
NC: $37.48; Texas and DC:
$17.98.
Benham: the
effect of
advertising
restrictions on
prices.
