In this paper we re-examine the American-style option pricing formula of Geske and Johnson (1984) and extend the analysis by deriving a modified formula that can overcome the possibility of non-uniform convergence encountered in the original Geske-Johnson methodology. Furthermore, we propose a...

Most papers studying loan guarantee are under a one-borrower and one-guarantor framework. This study uses the option approach to construct models in which loan guarantees are analyzed under a multiple-borrower and one-guarantor framework and under a one-borrower and multiple-guarantor structure...

This study investigates the institutional investors who hold nonzero synchronous positions in both derivative and underlying stocks to increase contract payoffs. We show that the potential manipulators settle or offset their TAIEX futures and options and simultaneously trade the constituent...