The interest-rate swap was developed in late 1981. By 1987, the market had grown to more than $500 billion (in terms of notional principal amount). What is behind this rapid growth? As our asset/liability application earlier demonstrated, an interest-rate swap is a quick way for institutional investors to change the nature of assets and liabilities or to exploit any perceived capital market imperfection. The same applies to borrowers such as corporations, sovereigns, and supranationals.

In fact, the initial motivation for the interest-rate-swap market was borrower exploitation of what were perceived to be “credit arbitrage” opportunities because of differences between the quality spread between lower- and higher-rated credits in the U.S. and Eurodollar bond fixed-rate market and the same spread in these two floating- rate markets. Basically, the argument for swaps was based on a well-known economic principle of comparative advantage in international economics. Read the rest of this entry »