Most of the work on multitasking suggests that it generally makes you less efficient, not more.

Campaigns fail if they waste resources courting voters who are unpersuadable or already persuaded. Their most urgent task is to find and persuade the few voters who are genuinely undecided and the larger number who are favorably disposed but need a push to actually vote.

Workers who come to the U.S. see their wages and their standard of living boosted sharply simply by crossing the border. That's a good thing, and one of the best arguments for immigration reform, even if you'll rarely hear a politician make it.

The oil market is especially sensitive even to a hint of expansion or contraction in supply.

On Wall Street, fraudulent schemes tend to thrive during economic booms, and to blow up when times turn tough.

Sometimes you have to destroy your business in order to save it.

The value of a currency is, ultimately, what someone will give you for it - whether in food, fuel, assets, or labor. And that's always and everywhere a subjective decision.