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Questions about models for the valuation of option contracts.

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What's the price of a lookback call option in the arbitrage-free CRR-model?

I thought about it and think that in this case it does not really matter how $f$ looks exactly, because $f(S_2^1(\omega ))=\gamma (\omega)$ should be true. Then, with the formular for the equivalent r …
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What's the price of a lookback call option in the arbitrage-free CRR-model?

If we consider the CRR-model in two periods, i.e. T=2. Let $S^1$ be the risky asset with $S_0^1=100$ and $S^0$ the bond with $S_0^0=1$. Furthermore, we assume the model is arbitrage-free with $y_b=-0. …
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