A variation of the Dragulescu-Yakovenko income model
  In the context of the Dragulescu-Yakovenko (2000) model, we show that empirical income distribution with truncated datasets, cannot be properly modeled by the one-parameter exponential distribution. However, a truncated version characterized by an exponential distribution with two parameters gives an accurate fit. 
Jos\'e Mar\'ia Sarabia, Faustino Prieto, Vanesa Jord\'a
q-fin.ST stat.AP