Apple has again ranked first in a BusinessWeek list of the world's 50 most innovative corporations. The results are based on a poll of 1,590 executives from different countries, using a deliberately ambiguous definition of the term "innovation," though generally referring to bringing something new and profitable to the market, whether a product, service or strategy. Counterbalancing opinion is a 10 percent weight on stock returns, along with 5 percent values assigned to three-year revenue and margin growth.