Definition for an asymmetric power options (a.k.a. standard power options).
The exercise style is European. The payoff of these options is: $$ \begin{align*} c &= \max(S^i - K, 0)\\\\ p &= \max(K - S^i, 0) \end{align*} $$ where $K$ is the strike, $i$ is the power, with $i > 0$, and $S$ is the spot.
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