The idea of creativity receives plenty of lip service in the corporate world. Many businesses say they would love their employees to come up with original ideas that bring a flood of new customers and open new markets. Some aim to provide the right incentives for those ideas to bloom, with varying success. Spicing up the workplace with competitive energy is often seen as a way to unleash creativity. But it’s important to set the dial just right on competition, or innovation will go by the wayside, according to a recent study.