We are live at Project Syndicate: John Stuart Mill vs. the European Central Bank: One of the dirty secrets of economics is that there is no such thing as “economic theory.” There is simply no set of bedrock principles on which one can base calculations that illuminate real-world economic outcomes. We should bear in mind this constraint on economic knowledge as the global drive for fiscal austerity shifts into top gear. Unlike economists, biologists, for example, know that every cell functions according to instructions for protein synthesis encoded in its DNA. Chemists begin with what the Heisenberg and Pauli principles, plus the three-dimensionality of space, tell us about stable electron configurations. Physicists start with the four fundamental forces of nature. Economists have none of that. The “economic principles” underpinning their theories are a fraud – not fundamental truths but mere knobs that are twiddled and tuned so that the “right” conclusions come out of the analysis. The “right” conclusions depend on which of two types of economist you are. One type chooses, for non-economic and non-scientific reasons, a political stance and a set of political allies, and twiddles and tunes his or her assumptions until they yield conclusions that fit... | Continue »