1) Consider a small town with only three families, the Greene family, the Brown family,
and the Black family. The town does not currently have any streetlights so it is very
dark at night. The three families are considering putting in streetlights on Main Street
and are trying to determine how many lights to install. The table below shows each
family’s willingness to pay for each streetlight.
Suppose the cost to install each streetlight is $900 and the families have agreed to split
the cost of the streetlights equally. If the families vote to determine the number of
streetlights to install, basing their decision solely on their own willingness to pay (and
trying to maximize their own surplus), what is the greatest number of streetlights for
which the majority of families would vote “yes?”
a.1 streetlight
b.2 streetlights
c.3 streetlights
d.4 streetlights
2) The following table shows the number of cases of water each seller is willing to sell
at the prices listed.
If Alpine Springs and Dew Good are the only two suppliers in this market, by how
much does the market quantity supplied change with each $3 increase in price?
a.-200 cases
b.-100 cases
c.100 cases
d.200 cases