Erkyihun S.T., E Zagona, B. Rajagopalan, (2017). “Wavelet and Hidden Markov-Based Stochastic Simulation Methods Comparison on Colorado River Streamflow,” Journal of Hydrologic Engineering 2017, 22(9): ...
The lognormal-gamma distribution, being a heavy-tailed distribution, is very attractive from an operational risk modeling perspective because historical operational losses also exhibit heavy tails.