Consider a perfectly competitive market described by the per-period supply function P = 20 + 0.3Q and per-period demand function P = 120 - 0.2Q. If the government intervenes in the market and imposes upon firms a specific tax of t = $5 per unit of output sold, then once the market achieves the new (regulated) market equilibrium:
$725 in tax revenues will be generated each period
$950 in tax revenues will be generated each period
$1000 in tax revenues will be generated each period
$2780 in tax revenues will be generated each period
$3610 of consumer surplus will be generated