Answer :
Answer:
$1
Explanation:
According to the information provided, Matt's economic cost of going to campus to purchase stuff is $4. He has two options to purchase his books:
- purchase the online at $175
- purchase them personally at $170 + $4 economic cost of going to the campus = $174
If he purchases them personally, his economic surplus = $175 (maximum price he was willing to pay) - $174 (cost of purchasing the books personally) = $1