A possibility that the paper does not raise is that instead of calculating the actual wealth held by the actual top 1%, you could estimate the Gini coefficient from the whole population, and calculate a theoretical 1% wealth.
Taleb would probably object on the grounds that the above will lead misleading results if the population is actually composed of a supper position of several distinct populations with different Gini coefficients.
Taleb would probably object on the grounds that the above will lead misleading results if the population is actually composed of a supper position of several distinct populations with different Gini coefficients.
His paper does go into these and other elaborations of the basic point.