Use the diagram below to answer the following questions. Assume an initial market price of $5.

a. Identify the initial area of producer surplus (PS1) when the market price is $5. Next, assume that demand decreases and the market price falls to $4. Draw the new demand curve and then identify the new area of producer surplus (PS2).

Instructions: (1) Use the tool provided 'PS1' to identify the initial area of producer surplus. This will drop a small triangle with three endpoints onto the graph. Drag the endpoints to the appropriate position to identify the initial area of producer surplus. (2) Then use the tool provided 'D2' to draw the new demand curve. (3) Use the tool provided 'PS2' and follow the same process as above to identify the second area of producer surplus.

b. As a result of the lower price, producer surplus
falls by more than $40
rises by less than $40
rises by more than $40
falls by less than $40