Companies deliver superior results when executives manage for long-term value creation and resist pressure from analysts and investors to focus excessively on meeting Wall Street’s quarterly earnings expectations. This has long seemed intuitively true to us. We’ve seen companies such as Unilever, AT&T, and Amazon succeed by sticking resolutely to a long-term view. And yet we have not had the comprehensive data needed to quantify the payoff from managing for the long term — until now.