There are 200 identical firms that produce chocolate in the short run. The market demand for chocolate is given by () = 200 2. The short-run total costs are given by: () = 50 + 200 2 . All the fixed costs are sunk costs.

a. Find the short-run supply curve of chocolate (by the individual firm), and the market supply curve!

b. Find the chocolate market equilibrium (price, individual firm's supplied quantity, and total quantity) in the short-run!