TAILIEUCHUNG - ASSET VALUATION MODELS - CAPM & APT

CAPM: Assumptions • Investors are risk-averse individuals who maximize the expected utility of their wealth • Investors are price takers and they have homogeneous expectations about asset returns that have a joint normal distribution (thus market portfolio is efficient) • There exists a risk-free asset such that investors may borrow or lend unlimited amount at a risk-free rate. • The quantities of assets are fixed. Also all assets are marketable and perfectly divisible. • Asset markets are frictionless. Information is costless and simultaneously available to all investors. • There are no market imperfections such as taxes, regulations, or restriction on. | CHAPTER FIVE MODELS- 06 08 2011 ASSET VALUATION CAPM APT 1 CAPM Assumptions Investors are risk-averse individuals who maximize the expected utility of their wealth Investors are price takers and they have homogeneous expectations about asset returns that have a joint normal distribution thus market portfolio is efficient There exists a risk-free asset such that investors may borrow or lend unlimited amount at a risk-free rate. The quantities of assets are fixed. Also all assets are marketable and perfectly divisible. Asset markets are frictionless. Information is costless and simultaneously available to all investors. There are no market imperfections such as taxes regulations or restriction on short selling. 06 08 2011 2 Derivation of CAPM If market portfolio exists the prices of all assets must adjust until all are held by investors. There is no excess demand. The equilibrium proportion of each asset in the market portfolio is market value of the individual asset w -----------7---7--T -------- market value of all assets A portfolio consists of a invested in risky asset I and 1-a in the market portfolio will have the following mean and standard deviation E Rp aE Rt 1 - a E m ơ R a a 1 - a 2 2 2a 1 - a 1 2 pi m im J A portfolio consists of a invested in risky asset I and 1-a in the market portfolio will have the following mean and standard deviation Find expected value and standard deviation of R p with respect to the percentage of the portfolio as follows. ỔE RO E Ri - E Rm da 06 08 2011

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.