4. Responsibility for Payment
In the type of investment, we are talking about, some individuals or a corporation composed of very distinct individuals must be obligated to pay. A fine investment may be unimproved land on the edge of the city. Some day it may double or even triple in value, but what we are trying to emphasize is the type of investment in which there is an obligation on the part of a person or persons to pay a given amount at a given time or in time payments, and you as the investor must look to this person or these persons to pay you on the due date.