Answer:
$4500
Explanation:
The Economic profit is the difference between the total revenue and the explicit and implicit cost.
Hence,
Economic profit = (Total revenue - explicit cost - implicit cost)
Explicit cost =$13500
Total revenue = $18,000
Since, implicit cost isn't given, implicit cost will be taken as zero
Hence,
Economic profit = ($18,000 - $13,500)
Economic profit = $4,500