Note sur le coefficient de capital et la distribution des revenus

[eng] The evolution of property income. In the U.S.A results according to Kuznets, from movements of capital volume statistically represented by the capital output ratio and from variations of the average capital yield. It seems to present tendency to automatic stability that can be explained by movements in opposite directions even perhaps by an interreaction of the two variables. Diverse elements of complementary explanation are examined moreover the historic mechanism described by Kuznets is opposed to law of progressive decrease in property income. The abrupt decrease of this income in France in recent period brings to light an inverse mechanism which tend to amplify fluctuations if capital yield decreases the corresponding volume is reduced those reactions essentially come from the action of monetary factors. Methodological conclusion it is necessary to apply statistical concepts which are better adopted to precise research goals.