John Browne believes that all companies battling it out in the global information age face a common challenge: using knowledge more effectively than their competitors do. And he is not talking only about the knowledge that resides in one's own company. "Any organization that thinks it does everything the best and that it need not learn from others is incredibly arrogant and foolish," he says. British Petroleum's chief executive, who engineered the revival of BP Exploration and Production and poised BP for spectacular growth, never accepts that something can't be done and is always asking if there is a better way and if someone might have a better idea. Under his leadership, BP is doing the same. And no matter where knowledge comes from, Browne says, the key to reaping a big return is to leverage that knowledge by replicating it throughout the organization so that each unit is not learning in isolation.

Wherever you look in business, there's a new level of interest in entrepreneurship. As attention at corporations swings away from retrenchment and toward growth, more and more people are wondering why some companies are able to stimulate creativity and initiative among their employees more effectively than others. What do those organizations do to convert intriguing ideas into commercial ventures?