By contrast, consumers who would damage their bottom line by curtailing load are still allowed to participate via self-generation, ensuring the programs achieve their full potential.

FORBES: Danger: Grid Operator Threatens Economic Growth, Clean Energy

Consumers who can curtail load without adversely affecting the bottom line are able to do so.

FORBES: Danger: Grid Operator Threatens Economic Growth, Clean Energy

Jessick made the case: Although a heavy debt load made Rite Aid's bottom line dismal, the stores were capable of operating profitably.

FORBES: Looking Up--Maybe

Larger modern airships rely on a semi-rigid design, in which engines and passenger compartments are suspended from a metal keel that runs along the bottom of the envelope and prevents it from distorting under the load.

ECONOMIST: Pushing the envelope

The Monadnock is a good place to get a practical sense of how quickly these innovations were catching on: the original northern half of the building consists of traditional load-bearing walls that are 6ft thick at the bottom, while the southern half, constructed only two years later, uses the then-revolutionary metal frame for drastically thinner walls that go just as high.

BBC: The infamous architecture of Chicago

After World War II Lowe's became known hundreds of miles around for rock-bottom prices on nails, copper pipe and lumber by the railcar-load.

FORBES: Merchant Princes