The Democratic presidential debate ironically took place the same week that a Princeton University professor was awarded the Nobel Prize for economics. Why ironic? Because Professor Angus Deaton is a strong advocate of economic growth. Today's Democrats are not.

Democratic presidential candidate U.S. Senator Bernie Sanders (L) debates former Secretary of State Hillary Clinton during the first official Democratic candidates debate of the 2016 presidential campaign in Las Vegas, Nevada October 13, 2015.

Here are some words from Professor Deaton, with a very big hat tip to my pal Jim Pethokoukis, the AEI economics columnist: "Economic growth is the engine of the escape from poverty and material depravation. Yet growth is faltering in the rich world ... Almost everywhere, the faltering of growth has come with expansions of inequality."