Answer:
The producer surplus is $1.00
Explanation:
The producer surplus is a surplus which shows a difference between producers who are willing to pay and the price which producer receive
In mathematically,
Producer surplus = Willing to pay - Price received by the customer with respect to the supply of the goods
So,
For First knife, the producer surplus would be
= $2.50 - $1.75
= $0.75
For the second knife, the producer surplus would be
= $2.50 - $2.25
= $0.25
For the third and fourth knife, the producer surplus would not be there because receiving price is more than the paying price
So, the producer surplus would be
= First knife + second knife
= $0.75 + $0.25
= $1.00
Hence, the producer surplus is $1.00