Economist Joke

A physicist, a chemist, and an economist are shipwrecked on a desert island. Starving, they find a case of canned pork and beans on the beach, but they have no can opener. So, they hold a symposium on how to open the cans. The physicist goes first:

"I've devised a physical solution. We find a pointed rock and propel it at the lid of the can at, say, 25 meters per second --"

The chemist breaks in:

"No, I have a chemical solution: we heat the molecules of the contents to over 100 degrees Centigrade until the pressure builds to --"

The economist, condescension dripping from his voice, interrupts:

"Gentlemen, gentlemen, I have a much more elegant solution. Assume we have a can opener..."

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