No, it's Piketty's controversial book, one of his points was his analysis of historical data showed that the only time the ratio of wealth between capital and l

No, it's Piketty's controversial book, one of his points was his analysis of historical data showed that the only time the ratio of wealth between capital and labour R decreased was during wartime, especially the two World Wars when incredible amounts of wealth was destroyed, seized or simply reverted to states because there was nobody left who could claim it.