The Fallacy of Identity Economics
The economist Alex Tabarrok in a post today criticizes what he calls ”identity economics”. Tabarrok says: “Identity economics is bad economics”. By “identity economics,” he means a theory that jumps from an accounting identity to a claim about causation. Keynesian economics is a prime example of this fallacy, as Tabarrok’s quotation from Nick Rowe illustrates:
1. Y = C + I + G + X – M. Therefore an increase in Government spending will increase GDP.