80.
Refer to Figure 9-5. The increase in total surplus resulting from trade is
a.
$640, since consumer surplus increases by $1,760 and producer surplus falls by $1,120.
b.
$1,280, since consumer surplus increases by $3,520 and producer surplus falls by $2,240.
c.
$2,240, since consumer surplus increases by $3,240 and producer surplus falls by $1,000.
d.
$2,560, since consumer surplus increases by $7,040 and producer surplus falls by $4,480.
81.
Refer to Figure 9-5. If this country allows free trade in tricycles,
a.
consumers will gain and producers will lose.
b.
consumers will lose and producers will gain.
c.
both consumers and producers will gain.
d.
both consumers and producers will lose.