No-arbitrage theorem for multi-factor uncertain stock model with floating interest rate

Abstract

In the stock models, the prices of the stocks are usually described via some differential equations. So far, uncertain stock model with constant interest rate has been proposed, and a sufficient and necessary condition for it being no-arbitrage has also been derived. This paper considers the multiple risks in the interest rate market and stock market, and proposes a multi-factor uncertain stock model with floating interest rate. A no-arbitrage theorem is derived in the form of determinants, presenting a sufficient and necessary condition for the new stock model being no-arbitrage. In addition, a strategy for the arbitrage is provided when the condition is not satisfied.