Respuesta :
It is the cost of capital, which is the rate of return on the next best alternative of the investment. That is to say had she saved, she could have enjoyed the 10%, which is her cost of overspending.
It is the cost of capital, which is the rate of return on the next best alternative of the investment. That is to say had she saved, she could have enjoyed the 10%, which is her cost of overspending.