concentrate 发表于 2025-3-25 07:05:15
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Die Pipeline des Grobstrukturmodellsing securities. Assuming that asset returns are ruled by a Brownian motion with drift is convenient for mathematical developments. However, this model does not replicate the time dependence observed for some asset classes, as underlined by Willinger et al. (Finance Stoch 3:1–13, 1999). This point is信任 发表于 2025-3-25 21:15:06
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Vernetztes Denken in einer Werbeagenturprocesses perfectly adapted for modeling illiquidity. In emerging or in small cap markets, the number of participants is often low, and thus transactions are sparse. The time series of stock prices in such conditions display characteristic periods in which they stay motionless. This phenomenon is al啜泣 发表于 2025-3-26 11:26:12
https://doi.org/10.1007/978-3-322-89072-6ns. Nevertheless, option pricing is a challenging task in this framework mainly because there is no analytical formula for options in the non-time-changed model. This chapter explores a new approach based on a fractional version of what is called Dupire’s equation (Dupire (Risk 7:18–20, 1994)), whic分离 发表于 2025-3-26 15:23:56
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