Answer:
$4,000
Explanation:
Implicit cost is the cost which is an income foregone internally, that is not the exact opportunity cost, here opportunity cost is salary foregone, that is $60,000.
But implicit cost would be $4,000 if the financial assets are now used in business, and are not left as they are.
Implicit cost is internally generated opportunity cost.
Since here he outlays, $8,000 let us say these were used earlier as financial assets to generate revenue, now $4,000 would be considered as implicit cost, that is earlier generated revenue from internal funds.
Final Answer
$4,000