We know that advanced economies with stable governments that borrow in their own currency are capable of running up very high levels of debt without crisis.

Seven habits that help produce the anything-but-efficient markets that rule the world. 1. Think short term. 2. Be greedy. 3. Believe in the greater fool 4. Run with the herd. 5. Overgeneralize 6. Be trendy 7. Play with other people's money

Our popular economics writers, however, are not in the business of giving their readers a ringside seat on the research action; with no exception I can think of, they use their books to do an end run around the normal structure of scholarship, to preach ideas that few serious economists share. Often, these ideas are not just at odds with the professional consensus; they are demonstrably wrong, and sometimes terminally silly. But they sound good to the unwary reader.

It should be possible to emphasize to students that the level of employment is a macroeconomic issue, depending in the short run on aggregate demand and depending in the long run on the natural rate of unemployment, with microeconomic policies like tariffs having little net effect. Trade policy should be debated in terms of its impact on efficiency, not in terms of phoney numbers about jobs created or lost.