Template-Type:ReDIF-Paper 1.0 Title: Valuation of Barrier Options in a Black--Scholes Setup with Jump Risk Author-Name: Dietmar P.J. Leisen Author-Email: Author-Postal: Author-Phone: Author-Homepage: Classification-JEL: C63, G12, G13 Keywords: binomial model, option valuation, lattice--approach, barrier option Abstract: This paper discusses the pitfalls in the pricing of barrier options a pproximations of the underlying continuous processes via discrete lattice models. These problems are studied first in a Black-Scholes model. Improvements result from a trinomial model and a further modified model where price changes occur at the jump times of a Poisson process. After the numerical difficulties have been resolved in the Black-Scholes model, unpredictable discontinuous price movements are incorporated. Length: pages Creation-Date: 1999-01 Revision-Date: Handle: RePEc:bon:bonsfb:446 File-URL: http://www.wiwi.uni-bonn.de/bgsepapers/bonsfb/bonsfb446.pdf File-Format: application/pdf