Mean biases on estimates of alpha and rho.

For each of the 9 sets of parameters (left column), 10000 samples of size 100 of the were simulated, F being the Log-normal distribution adjusted on Kelly and Rahn's data. The estimates of α and ρ were calculated with the two models Dirac and exponential. The estimated bias is the mean difference between the estimate and the true value. Biases on ρ with the classical model (rightmost column) are of order 10% to 20%.