Chesney, Marc; Elliott, Robert J.; Madan, Dilip; Yang, … - In: Mathematical Finance 3 (1993) 2, pp. 85-99
The exponential of a scalar diffusion is considered. Point estimates of the diffusion coefficient can be obtained by considering proportional increments of different powers of the exponential. an investigation of the minimum variance estimator gives unique optimal power. Copyright 1993 Blackwell...