The marginal value schedule for Moe and the marginal cost schedule for Larry for apples are shown below.

No. of Apples Moe's MV       Larry's MC

     1                 $10                   $1

     2                      7                      2

     3                      5                      4

     4                      3                      5

a) Find a single price that all mutually preferred trades can occur.

b) What are the gains from trade?

c) Now suppose a $1.50 per-unit tax is levied on Larry for each unit sold (that raises MC by $1.50). Now find all mutually preferred trades and the trading prices. Is the demander harmed by a tax levied on the supplier? Explain.