[eksabajt]

Perhaps you shouldn't comment when you haven't read the post then. If you had, you would have learned that Lindert and Williamson's analysis did account for the income of slaves. Five of the eighteen paragraphs of this short article about their work discusses that part of the analysis.

[massysett]

Comparing colonial America to today's free societies is laughable no matter how they "account" for the work of enslaved people.