the Forbes 400 data that observations are truncated from below at the 400th largest order
statistic. Applying this method, we find that higher maximum marginal income tax rates
induce higher wealth Pareto exponents. Setting the maximum tax rate to 30-40%(as in US
currently) leads to a Pareto exponent of 1.5-1.8, while counterfactually setting it to 80%(as
suggested by Piketty, 2014) would lead to a Pareto exponent of 2.6. We present a simple …