But the policymakers who swallow these simulations have little way of knowing what is driving the results: is it deep theory, solid data, or arbitrary pruning?

ECONOMIST: Economic models

Under the deep-pocket theory, which says, to put it somewhat cynically, that tort liability automatically expands to the nearest available pot of money.

FORBES: An Affair to Remember

The judiciary has allowed the "deep- pockets" theory to prevail: Companies with only the most distant, tangential connection to a case have been hit with huge liability judgments.

FORBES: Fact and Comment

The notion of Keynesian stimulus as a cure to a deep recession is at best a very costly unproven theory.

FORBES: Keynesian Stimulus: Costly, Unproven And Unfalsifiable

The resulting photosynthetic activity could, in theory, increase the storage of carbon from the atmosphere into the deep ocean.

UNESCO: MEDIA SERVICES

Leftist financier George Soros has recently promulgated the idea that free market economic theory, that of Friederich Hayek in particular, suffers from a deep and profound contradiction.

FORBES: Why John Maynard Keynes Was A Keynesian