The results showed that companies with a high growth, good pre-performance, younger executives, lower equity concentration, and the corporate nature is private are more likely to use stock options.

研究结果表明：成长性高、前期业绩好、高管较年轻、股权集中度低、公司性质为民营的公司更有可能使用股票期权；

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It estimates that stock options have added, on average, 1.5% a year to the growth of corporate profits, and that they were worth 10.5% of stated profits in 1998, up from 4% of profits in 1994.

ECONOMIST: A survey of Corporate Finance