One reason for Renault's leasing model is to allow vehicle owners to upgrade their batteries as and when the technology improves.

ECONOMIST: Renault's electric-car gamble

Google's model is significant for another reason.

CNN: Google creates buzz with wireless store

The clothing outfitter's average expected rate of return over the next 10 years is 17.8%, according to Reese's Buffett strategy, another reason it gets strong interest from the Buffett model.

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