Abstract
In this paper, we give a sufficient condition under which the local martingale that appears in Itô’s formula is a true martingale. As a consequence, we obtain a rigorous proof of the Dupire formula on local volatility.
Original language | English |
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Pages (from-to) | 782-787 |
Number of pages | 6 |
Journal | Stochastic Processes and their Applications |
Volume | 150 |
DOIs | |
Publication status | Published - Aug 2022 |
Keywords
- Dupire formula
- Itô–Tanaka formula
- Martingales
- Volatility