In: Accounting
a) Economic depreciation of the firm
This is the decrease in the value of the firm during the year
Economic depreciation = Cost of investment - Market value at the end of the year
= 30000 - 20000 = 10000 $
b) Costs of Partnership
Actual costs = Expenses incurred = Rent + Interest on loan = 12000+ 30000*6%
= 13800 $
Opportunity costs = Salary lost = 40000*2 = 80000 $ ( These are to be included in costs because this amount is lost to the partners as they choose to run the partnership. Had they continued the jobs, they could have gained this. Otherwise, the partners are not drawing anything from the partnership firm. Their remuneration should be actually borne by the firm, which is included as opportunity costs, even if actually unpaid.)
Total costs including opportunity costs = 93800 $
c) Economic profits of partnership
Revenue earned - Economic costs = 100000 -93800 = 6200 $
Note: Depreciation on machinery is ignored as it is not given in the question.