具有永久价格影响的几乎确定套期保值
Almost-sure hedging with permanent price impact
摘要:
我们考虑一个具有永久价格影响的金融模型。连续时间的交易动态推导出离散的再平衡政策的限制。然后研究了欧式期权的超套期保值问题。我们的主要结果是准线性定价方程的推导。它适用于溶液的粘性。当它有一个光滑解时,它提供了一个完美的对冲策略。
英文摘要:
We consider a financial model with permanent price impact. Continuous time trading dynamics are derived as the limit of discrete rebalancing policies. We then study the problem of super-hedging a European option. Our main result is the derivation of a quasi-linear pricing equation. It holds in the sense of viscosity solutions. When it admits a smooth solution, it provides a perfect hedging strategy.
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