As long as the marginal benefits are higher than the marginal costs you are better off continuing the activity.
Consider the example of eating pizza. Each slice of pizza gives you happiness and helps fill you up (marginal benefit), but each slice also has lots of calories and fat (marginal cost). As long as you are still hungry and getting enjoyment from eating, you should keep eating. But once you reach the point where you are too full then you should stop, because the costs now outweigh the benefits.
Answer:
The answer is D) Nora has a positive tracking signal.
Explanation:
Answer:
Young should report proceeds from the sale of bonds as equal to $864,884
Explanation:
The proceeds on the sale of bonds is equivalent to the present value of all the cash flows that are likely to accrue to an investor once the bond is bought. These cash-flows are the periodic coupon payments that are paid semi-annually and the par value of the bond that will be paid at the end of the 5 years.
During the 5 years, there are 10 equal periodic coupon payments that will be made. In each year, the total coupon paid will be

and this payment will be split into two equal payments equal to
. This stream of cash-flows is an ordinary annuity
The periodic market rate is equal to 
The PV of the cashflows = PV of the coupon payments + PV of the par value of the bond
=$40,000*PV Annuity Factor for 10 periods at 4%+ 

Answer:
true
Explanation:
while import is receiving goods from foreign country