TAILIEUCHUNG - Báo cáo " On the martingale representation theorem and approximate hedging a contingent claim in the minimum mean square deviation criterion "

In this work we consider the problem of the approximate hedging of a contingent claim in minimum mean square deviation criterion. A theorem on martingale representation in the case of discrete time and an application of obtained result for semi-continous market model are given. | VNU Journal of Science Mathematics - Physics 23 2007 143-154 On the martingale representation theorem and approximate hedging a contingent claim in the minimum mean square deviation criterion Nguyen Van I luu1 Vuong Quan Hoang2 1 Department of Mathematics Mechanics Informatics College of Science VNU 334 Nguyen Trai Hanoi Vietnam 2 ULB Belgium Received 15 November 2006 received in revised form 12 September 2007 Abstract. In this work we consider the problem of the approximate hedging of a contingent claim in minimum mean square deviation criterion. A theorem on martingale representation in the case of discrete time and an application of obtained result for semi-continous market model are given. Keywords Hedging contingent claim risk neutral martingale measure martingale representation. 1. Introduction The activity of a stock market takes place usually in discrete time. Unfortunately such markets with discrete time are in general incomplete and so super-hedging a contingent claim requires usually an initial price two great which is not acceptable in practice. The purpose of this work is to propose a simple method for approximate hedging a contingent claim or an option in minimum mean square deviation criterion. Financial market model with discrete time Without loss of generality let us consider a market model described by a sequence of random vectors Sn n 0 1 . N Sn G Rd which are discounted stock prices defined on the same probability space Q 3 P with Fn n 0 1 . . N being a sequence of increasing sigmaalgebras of information available up to the time n whereas risk free asset chosen as a numeraire S0 1. A Fn -measurable random variable H is called a contingent claim in the case of a standard call option H max Sn K 0 K is strike price. Corresponding author. Tel. 84-4-8542515. E-mail huunv@ 143 144 Huu . Hoang VNU Journal of Science Mathematics - Physics 23 2007 143-154 Trading strategy A sequence of random vectors of d-dimension Y Yn n 1 2 . N with Yn

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.