Also looking forward, market share retention in the important Japanese market in the aftermath of the March 2011 earthquake and tsunami will be important.

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For Google, which holds more than 70% of the search-engine market by some counts, data retention is one area where the company may be vulnerable.

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Dosoretz says the deals are all at market rates and give the company a friendly landlord and investing doctors a retention incentive.

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The increases in our revenue and contract value, as well as the expansion of key operating metrics such as wallet retention, illustrate both the value we provide to our clients and the market opportunity for our services.

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Britain's plan to hike social taxes rather than use a market approach to medical insurance, along with other planned changes, won't aid corporate retention or invite foreign investment.

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