There are other sub-sectors of health care where cash flow is greater than earnings.

FORBES: Magazine Article

Many of these sub-sectors are shielded from takeover or allowed to compete on preferential terms.

ECONOMIST: Easier said than done

We are investing in those that target particular sub-sectors, rather than in the Matsushitas of the world.

CNN: Money & Investing

The retail sector REITs consist of three sub-sectors, including shopping centers, regional malls and free-standing (or triple-net).

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So far, the EMIS has covered the sub-sectors of primary and secondary education.

UNESCO: EDUCATION

Diversified companies don't fully benefit when particular sub-sectors of technology are doing well.

CNN: Money & Investing

"This business is more rational than a lot of other retail sub-sectors, " says Stephanie Hoff, an analyst at Edward Jones.

FORBES: Weathering The Housing Storm

The returns for these sub-sectors are also strong as regional malls enjoy the leader board position (at 25.11 percent), followed by shopping centers (22.01 percent) and free-standing (18.24 percent).

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In addition to providing technical advice on the full range of education sub-sectors out of its Kabul Office, UNESCO implements large-scale literacy programmes for civilians and police officers in Afghanistan, with Japanese funding.

UNESCO: EDUCATION

ETPs are now available for a wide range of equity asset classes, sub-classes, styles and sectors as well as fixed-income, commodity and foreign currency categories on a long and short basis.

FORBES: It's Not Really A Lost Decade

Over one-third of Americans are now registered as self-employed, becoming small businesses in a P2P economy of professional services and retail, or sub-contractors in growing sectors such as healthcare and data collection and analysis.

FORBES: Is Your Job Robot-Proof?