Non-classical Limit Processes and Stochastic Finance
In non-classical limit processes we aim at a better understanding of
the family of stochastic processes that can appear as limits under
space-time scaling of strongly dependent models encountered in
stochastic finance and teletraffic theory. The presence of strong
dependence implies that the limiting process is
non-classical in the sense of not being a semi-martingale. Some newly
found members in this family include fractional Brownian motion, the Poisson bridge
and the so-called telecom process, the properties of which are not yet
well understood. Our goal is to characterize the domain of attraction
for the non-classical limits and study their statistical properties.
In stochastic finance we aim at modelling asymmetric information in
pricing models. This is an important topic both mathematically and
practically. A Bayesian approach to this key area will be developed
and statistical tests to detect insider trading will be developed. The
application of the Bayesian approach is also numerically challenging.
- Funding: Academy of Finland, 2005-2008
- Researcher in charge: E. Valkeila
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