It is very satisfying when research corroborates naive intuition. We expect water to flow downhill and when research after much painstaking data analysis concludes that indeed water flows downhill, it is a valuable addition to human knowledge and understanding. Switching off sarcasm mode now. I entered that mode when I read “Rich People Are Great at Spending Money to Make Their Kids Rich, Too” in The Atlantic. (Hat tip: Rajan.) An accompanying graphic shows “Share of Spending on Certain Categories, by Income Group” —
Atanu Dey : Life is a Random Draw 