<p>If you''re like most people, you probably believe that your identity is stable. But in fact, your identity is constantly changing - often outside your conscious awareness and sometimes even against your wishes - to reflect the interests of the groups of which you''re a part. And that fluid identity has a powerful influence over your feelings, beliefs, and behaviours.<br><br>In THE POWER OF US, psychologists Packer and Van Bavel integrate their own cutting-edge research in psychology, neuroscience and economics to explain what identity really is and show how to harness its dynamic nature to:<br><br><b>Increase our productivity - Improve physical and psychological health - Overcome our individual prejudice - Unlock our altruism - Break the political gridlock - Galvanize others to solve controversial global problems</b><br><br>Along the way, they explain such seemingly unrelated phenomenon as why men cry at football games but not funerals, why the history of slavery in U.S. counties is