©2013 Pearson Education
payments into a specific currency is specified at the time the bond is issued. A second type
differs from the first in that the applicable exchange rate is the rate that prevails at the time
a cash flow is made (i.e., at the spot exchange rate at the time a payment is made). A third type is
one that offers to either the investor or the issuer the choice of currency. These bonds are
commonly referred to as option currency bonds.
(b) Do you agree that the pricing of all dual-currency bonds is an application of option
pricing?
An option gives the holder the right to future claims conditioned upon contingent outcomes. To
be an application of option pricing, an option must be present or embedded in the asset (in this
case a dual-currency bond). As discussed in part (a), there are three types of dual-currency
(c) Why should the price of the option component be “equal to the difference between the
dual currency bond price and its bond component”?
In a perfect capital market environment (with no transaction costs and other frictions), the value
11. Answer the below questions.
(a) Why do rating agencies assign a different rating to the debt of a sovereign entity based
on whether the debt is denominated in a local currency or a foreign currency?
The reason for distinguishing between local debt ratings and foreign currency debt ratings is that
historically, the default frequency differs by the currency denomination of the debt. Specifically,
defaults have been greater on foreign currency-denominated debt. For example, an S&P survey