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BEAST66 was used to calibrate gene trees using a HKY+G substitution model, uncorrelated lognormal clock, and yule tree prior.

We conclude that income can indeed be approximated as a lognormal distribution, and throughout time; at least as a stylized fact that we can use for propositions and illustrations.

The strong assumption might well be that the income distribution is lognormal for social - and not �economic� - reasons, and that the economic process only is oriented at directing people to a fitting place in that distribution.

However, data on actual earnings do allow the encouraging conclusion that the earnings distribution can be approximated by a lognormal distribution.

These hold for any distribution, not just the lognormal distribution.