no code implementations • 2 May 2022 • Emmanuel Coffie
It is well documented from various empirical studies that the volatility process of an asset price dynamics is stochastic.
no code implementations • 8 Jul 2021 • Emmanuel Coffie
While the original Ait-Sahalia interest rate model has been found considerable use as a model for describing time series evolution of interest rates, it may not possess adequate specifications to explain responses of interest rates to empirical phenomena such as volatility 'skews' and 'smiles', jump behaviour, market regulatory lapses, economic crisis, financial clashes, political instability, among others collectively.
no code implementations • 13 Mar 2021 • Emmanuel Coffie
In this paper, we study analytical properties of the solutions to the generalised delay Ait-Sahalia-type interest rate model with Poisson-driven jump.
no code implementations • 19 Feb 2021 • Emmanuel Coffie, Sindre Duedahl, Frank Proske
In modern life insurance, Markov processes in continuous time on a finite or at least countable state space have been over the years an important tool for the modelling of the states of an insured.