A financial security is a saleable right to receive a sequence of future payments. The size of each future payment can be either guaranteed or determined by the outcome of some uncertain future event. The number of payments in the sequence can be finite, or the sequence can continue indefinitely into the future.
Bonds
Banks that purchase bonds issued by homeowners usually sell those bonds to other investors, who form a pool of these bonds. These investors then issue securities that are saleable rights to the sequences of payments that the homeowners have promised to make. These securities are called mortgage-backed securities. Although the homeowners will make the payments directly to the banks that originated the loans, the banks will pass those payments to the investors who purchased the mortgaged loans, and those investors will, in turn, pass the payments to the persons who purchased the mortgage-backed securities. This process of creating mortgaged-backed securities is an example of a set of mutually beneficial exchanges. The banks specialize in originating loans, rather than purchasing rights to receive sequences of payments. The investing companies who purchase the loans from the banks specialize in creating diversified pools of loans, and thus reducing the risks borne by the persons who purchase the securities that are backed by this pool of loans.
The issuer of the bond borrows money by selling the bond to an investor, who thereby becomes a lender. The price that the investor will pay for the bond determines the cost that the investor pays for obtaining the loan. For example, suppose that a railroad wants to borrow $11,000,000 to purchase a locomotive. The railroad offers to sell 10 bonds at a price of $1,100,000 each. Each bond is a promise to pay $1,400,000 per year for 10 years. Over the 10 years, the investors will receive a total of $14,000,000 as a return on their investment of $11,000,000.
The railroad’s attempt to raise $11,000,000 by selling 10 bonds for $1,100,000 each might not succeed. If investors believe that the railroad might be late with some of the promised payments, or might be unable to complete the payments, the investors might be willing to pay only $1,000,000 for each of the bonds. In this event, the railroad would have to sell 11 bonds (at $1,000,000 each) to raise the $11,000,000 required to purchase the locomotive. Over the term of the loan, the railroad would have to pay to the bondholders $1,400,000 on each of 11 bonds. The total that the railroad would repay for the loan of $11,000,000 would be (11 bonds)($1,400,000 per bond) $15,400,000. When the railroad must sell 11 bonds to raise the $11,000,000 to purchase the locomotive, the investors who finance that purchase get a return of $15,400,000 on their investment of $11,000,000. The railroad must pay an additional $1,400,000 ($15,400,000-$14,000,000) to finance the locomotive because investors perceive a higher risk of late or missing payments.
Since a bond is a saleable right to receive a sequence of payments, any investor can become a lender in due course by purchasing the bond from a previous owner. Consequently, the investor who became a lender by purchasing the bond from the issuer need not remain a lender until the issuer makes the final payment required by the bond. At any time while the issuer is paying off the loan, the original lender can recover at least a portion of the unpaid balance of the loan by selling the bond to another investor.
