A problem of risk neutral probability density function estimation for prices of risky assets is discussed when the asset pricing model uses exponential random process with independent increments. The structure of increments consists of two components: systematic drift and a random gamma...

The no arbitrage conditions are derived in the explicit form for the market, where the zero coupons bonds of various maturities are accessible for the investors to draw up the portfolios. It is supposed, that the investor at any moment of time has a possibility to make the self-financed...

The stochastic mathematical model of the credit risk process is examined. It is assumed that in unstable economic condition of default may be a cause for credit risk. The fund value of the crediting is considered as some random variable that is changed step-wise at instants of the payments of a...

This paper considers a problem of asset pricing for case when the short-term interest rate process does not have the markovian property. In this case the price can be determined also by state variables some of that are not observable. In the same time from the practical point of view, the...

The successful investment policy is an integral part of successful activity of the insurance company. The return to the shareholders of the insurance company usually thought of as comprising the underwriting result and investment income. The investment income is very important even for an...

The term structure of interest rates plays the key role in pricing of bonds. Therefore its properties are interesting for many financial analysts. However in literary sources usually a sketchy description of properties of term structure occurs. In this paper an attempt of detailed description of...

Processes of the interest rates and other financial indexes in continuous time are usually modeled in the literature by stochastic processes with independent increments. Such processes are described by the stochastic differential equations and are the Markov processes. As it follows from the...

The multi-factor model “with square root” is discussed in details. For such model, the representation of state variable process in the integral form is derived and its covariance matrix is found. The special attention to the problem connected with the tendency for the term structure of...

In this paper it is showed that the yield curve of the European Central Bank (ECB) does not satisfy the no arbitrage conditions. To construct a no-arbitrage yield curve, we need to add one more term to yield curve. As the state variables, it is necessary to choose a four-dimensional diffusion...

The paper presents a mathematically equivalent, but more compact description of the usually occurring quadratic model of yield. Equations for the functions of the term structure are obtained and general properties of their solutions are given. The main content of the paper is to consider the...