Amid the Great Depression, the great economist John Maynard Keynes noted, “Practical men, who believe themselves to be quite exempt from intellectual influences, are usually the slaves of some defunct economist.”
Perhaps it has something to do with difficult economic times, which unleashes the power of long-discredited ideas into general circulation. Today I see three bad intellectual influences that merit noting.
I start with one from the political right, followed by bipartisan folly, and end with one from the left.
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