And because of the expense of that land, and the costs of developing on it, new entrants do not enter the market.

BBC: Could better-looking homes solve housing shortage?

By constantly being willing to disrupt the old ways of doing things, Apple keeps bringing better solutions to market via its ongoing investment in teams dedicated to developing new solutions and figuring out how they will adapt to fit unmet needs.

FORBES: Identifying the Good, Bad and Ugly Investments

Teams that have as their only job the requirement for exploring market needs, product opportunities, and developing solutions that generate profitable new revenue.

FORBES: Where Larry Page must manage risk, and invest time, as Google's new CEO

The difference the sale of Edinburgh could make to Scottish airports depends who buys it, how much they have to invest in developing it, whether the new owners will target Glasgow's market, and whether the Scottish government can find a means and the money to re-introduce some method for attracting new routes in and out of Scotland.

BBC: Stuck on the runway

Proponents of carbon trading envisage a new global investment market based on emissions trading, where companies and countries have incentives to invest in developing world projects due to the highly coveted carbon credits they receive for doing so.

CNN: All About: Forests and carbon trading

But in the case of Nokia and IBM, being in the developing world made them realize there was a whole new market with a completely different set of needs that they could cater to, and make some money in the process.

FORBES: Nokia Looks To Emerging Markets To Find New Products And Customers

For one thing, the housing market was booming in 2004 and 2005, so the company was focused on developing new types of kitchen sinks.

WSJ: With Bottle-Fillers in Mind, the Water Fountain Evolves

Building on its experience in the broadband communications and mobility industries, Motorola is developing a new family of Android-powered, highly innovative devices for the broadband market.

ENGADGET: Motorola Mobility launches Android-powered HMC3260 'Cloud Broadband' media streamer