Some parts of economics are more like a social science. Other commenters have already pointed out that there is limited ability to perform traditional hypothesi

Some parts of economics are more like a social science. Other commenters have already pointed out that there is limited ability to perform traditional hypothesis-testing experiments. Other parts of economics are more like philosophy. Which models and metaphors describe economies and economic decisions best? Is cash like blood? Are there invisible hands? Are interest rates levers or throttles? To what degree do groups think the way individuals do? These sorts of things don't lend themselves to Greek letters, operators, functions, and so on.