But the super-rich are busy trying to turn old brownstones around Gramercy Park into single-occupancy houses and the supply of people who want to live in Manhattan seems inexhaustibly great.

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This is largely due to high regulatory costs that discourage new housing supply, particularly the single-family homes preferred by most families.

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In general, the increase in the supply of precious metals is a single-digit number on a yearly basis.

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When I look at the global water crisis purely from a market-driven perspective, I see perhaps the single greatest imbalance of supply and demand that exists in the global marketplace.

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To supply the extra juice, utilities turn on inefficient single-cycle gas turbines, which turn 25% of the fuel's energy into electricity, as opposed to 45% for combined-cycle plants that use turbine exhaust to make steam to run a second generator.

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Single and focused, Randall thrived at American Hospital Supply and quickly got himself noticed in the medical-device industry.

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