I think it's in the book. Like if you look at how he constructs his r I could be wrong, the thing is like 500 pages and it's been a while. Does anyone know h

I think it's in the book. Like if you look at how he constructs his r I could be wrong, the thing is like 500 pages and it's been a while. Does anyone know how he gets his r? https://en.wikipedia.org/wiki/File:TaxRateAndGrowthPiketty10_10.png https://en.wikipedia.org/wiki/File:TaxRateAndGrowthPiketty10...