For instance, balance is great in theory, but the idea of carving pieces of our lives into equal portions is unrealistic.

FORBES: For Work-Life Happiness: Stop Balancing, Start Leaning In

And she maintains that tricky balance between engrossing historical narrative and cultural theory.

FORBES: Magazine Article

By the late 1980s, though, the balance of his interests had shifted away from theory and towards policy work.

ECONOMIST: Rudiger Dornbusch

In theory, currencies of countries with a positive balance of trade are those that appreciate.

FORBES: Trade Currencies Like Soros

The best-known theory for understanding why a country's current-account balance might rise or fall was developed by Robert Mundell, a Canadian economist, and Marcus Fleming, a Briton, in the early 1960s.

ECONOMIST: Figures to fret about

Properly accounting for demographics is always tricky since in theory folks can alter retirement ages, fertility rates, work-school balance, etc.

FORBES: Japan, Demographics and National Productivity

The repeatedly disproved theory in operation here is that cheapening your currency will improve your trade balance and that an improved trade balance makes your economy stronger and wealthier.

FORBES: Bush's Big Boo-Boo

In theory it could work quite well, but in practice very few games achieve that perfect balance and only a handful achieve a good balance.

FORBES: 'Hawken' Is Why I Hope Free-To-Play Isn't The Future Of Video Games