The Bayesian Effects in Measurement of the Asymmetry of Poisson Flows
  As it follows from the interrelation of Gamma and Poisson distributions the observed value of asymmetry for Poisson flows of events has the bias. The Monte Carlo experiment confirms the presence of this bias between the observed and initial asymmetries. The obtained results allow to correct the estimation of the asymmetry of flow rates. 
S. I. Bityukov, N. V. Krasnikov, A. Kuznetsov, V. V. Smirnova