Ce que dit Sylvain Catherine est exact : si on supprimait l'État social, les allocations chômage, retraite, famille, etc., alors, dans les travaux de l'école Piketty, les inégalités... diminueraient.
The notion that the world is less equal today than it was between 1910 and 1950 is just historically ridiculous and really makes the point that all these metrics should take much more seriously the vast welfare state systems that emerged during and in the immediate aftermath of this period.
This is the main blind spot of Piketty, Saez and Zucman’s empirical view of the world. They consider the distribution of tax rates, of which a substantial part fund social insurance, without considering the distribution of transfers and benefits. They consider the distribution of wealth without considering the value of entitlements…
This approach creates inequality metrics that would improve if we were to dismantle the welfare state. Which is exactly what this graph suggests by implying that the world is just as unequal today as it was during a period that saw two world wars and the greatest economic depression since the Industrial Revolution.
You cannot celebrate Roosevelt, Attlee and so on and use inequality metrics that make social insurance programs look like they foster inequality