Florescu, Ionuţ; Pãsãricã, Cristian Gabriel - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 4, pp. 419-432
The empirical relationship between the return of an asset and the volatility of the asset has been well documented in the financial literature. Named the leverage effect or sometimes risk-premium effect, it is observed in real data that, when the return of the asset decreases, the volatility...
