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I develop a new method for approximating and estimating nonlinear, non-Gaussian state space models. I show that any such model can be well approximated by a discrete-state Markov process and estimated using techniques developed in Hamilton (1989). Through Monte Carlo simulations, I demonstrate...
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mathematics for the dynamics of asset prices and their volatility. Calibrating it to real data would be very useful in many … practical scenarios. It is very challenging, however, since the volatility is not directly observable. In this paper, a complete …
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