Trajectorial market models: arbitrage and pricing intervals

Arbitrage and universal pricing

This paper considers two methods for pricing assets and examines the relations between them. The +rst method is based on the principle of no-arbitrage, which asserts that introduction of the new asset should not create an arbitrage in a market that was before arbitrage free. This condition is satis+ed by prices for the new asset between speci+c lower and upper limits, determined as the values o...

The Amendment and Empirical Test of Arbitrage Pricing Models

The classical APT model is of the form j j j j EI I r E r ε β + − = − ) ( ) ( , where ) ( j j r E r − is the earning deviation (called basic variance-profit) of the security I j, is a common factor. This paper considers the impact on the securities return caused by the skewness and kurtosis of the stock returns distributions, and poses a re-modified the arbitrage pricing model as follows j j j ...

The Arbitrage Pricing Theory and Multifactor Models of Asset Returns*

Option Pricing, Arbitrage and Martingales

This paper provides a short introduction into the mathematical foundations of the theory of valuing derivative securities. We discuss the mathematical setting of option price theory and derive the relationship between no-arbitrage and mar-tingales. We provide examples how this theory can be applied to equity and foreign-exchange derivatives. We also explain how the theory can be applied to inte...

Comparative Study of Capital Assets Pricing Models (CAPM) with Extrapolating Capital Assets Pricing Models (X-CAPM) in Tehran Exchange Market

The main objective of this article is to present a comparative study of capital assets pricing models (CAPM) with extrapolating capital assets pricing models (X-CAPM) of companies admitted in Tehran Exchange Market which is accomplished for the first time by investigators of this research in Iran. Accordingly, the statistical population under study of this research includes all companies admitt...