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We introduce a notion of volatility uncertainty in discrete time and define the corresponding analogue of Pengs G … as a Donsker-type result for the G-Brownian motion. G-expectation, volatility uncertainty, weak limit theorem …
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such based on gradients) cannot be applied. We investigate two models: Heston's stochastic volatility model, and Bates …
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We study the optimal loan securitization policy of a commercial bank which is mainly engaged in lending activities. For this we propose a stylized dynamic model which contains the main features affecting the securitization decision. In line with reality we assume that there are non-negligible...
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Prices of contracts with risky aspects are typically linked to specific uncertainties and probabilities of adverse scenarios. Insurance companies carry the risk of losses in exchange for a premium, which depends on the loss distribution. Another example where risk is exchanged for a fixed price...
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stochastic volatility models, and stochastic local volatility models such as the stochastic alpha beta rho (SABR) model …
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