Static tradeoff theories, which do not explicitly treat the impact of transaction costs, do not explain the policy of asymmetry between frequent small debt transactions and infrequent large equity transactions. Nor do these theories explain why the debt ratio is allowed to wander a considerable...

The theoretical conditions for covered interest arbitrage and exploitable profit opportunities out of simple and triangular arbitrage in the absence and presence of market imperfection are enunciated. A distinction is made between pure arbitrage profits and arbitrage-induced total profits...