Rivalry Increases Risk-taking and Physiological Stress
Coke vs. Pepsi. Apple vs. Samsung. Yankees vs. Red Sox. Patriots vs. Jets. Rivalries can deepen brand loyalties, spur innovation, and encourage the kind of risk-taking that leads to big wins. But rivalries can just as easily provoke actions that lead to significant losses, from an upset in the SuperBowl to the 2008 financial crisis.