Assume There Are Three Hardware Stores, Each Willing to Sell

Multiple Choice

Assume there are three hardware stores, each willing to sell one standard model hammer in a given time period. House Depot could offer a hammer for a minimum of $7. Lace Hardware could offer a hammer for a minimum of $10. Bob's Hardware could offer a hammer for a minimum of $13.If the market price of hammers decreased from $13 to $11, total producer surplus would:

A) decrease from $9 to $5.
B) increase from $5 to $9.
C) decrease from $30 to $17.
D) remain unchanged.