Because the sales of complementary products rise in tandem, a company has a strong strategic interest in reducing the cost and expanding the availability of the complements to its main product. It’s not too much of an exaggeration to say that a company would like all complements to be given away. If hot dogs were free, mustard sales would skyrocket. It’s this natural drive to reduce the cost of complements that, more than anything else, explains Google’s business strategy. Nearly everything the company does is aimed at reducing the cost and expanding the scope of Internet use. Google wants
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