We derive closed form European option pricing formulae under the general equilibrium framework for underlying assets that have an <InlineEquation ID="IEq1"> <EquationSource Format="TEX">$$N$$</EquationSource> <EquationSource Format="MATHML"> <math xmlns:xlink="http://www.w3.org/1999/xlink"> <mi>N</mi> </math> </EquationSource> </InlineEquation>-mixture of transformed normal distributions. The component distributions need not belong to the same class but must all be transformed normal. An...</equationsource></equationsource></inlineequation>

We derive a closed-form solution for the price of a European call option in the presence of ambiguity about the stochastic process that determines the variance of the underlying asset’s return. The option pricing formula of Heston (Rev Financ Stud 6(2):327–343, <CitationRef CitationID="CR43">1993</CitationRef>) is a particular case of...</citationref>

This study extends the GARCH pricing tree in Ritchken and Trevor (J Financ 54:366–402, <CitationRef CitationID="CR33">1999</CitationRef>) by incorporating an additional jump process to develop a lattice model to value options. The GARCH-jump model can capture the behavior of asset prices more appropriately given its consistency with...</citationref>