carroll when gramm talked to booktv about her latest book "the pursuit of happiness." >> "the pursuit of happiness" is the name of the book and university maryland professor and brookings institution fellow carroll gramm is the author. dr. graham, is happiness public policy? >> it is the big question these days. when i started work on this about ten years ago, people fought the few of us that were doing it were pretty loopy bid becomes a way of well-being and can measure wellbeing and quality-of-life and complement measures and right now the british government and the united nations, the chinese government, the brazilian government and i could name or are interested in implementing the metrics. the happiness metrics and their policy decisions and so the british government just completed its first round survey where it included happiness metrics in its national statistics. >> what is the happiness metric? >> it is a measure of -- we measure wellbeing more generally. happiness is a colloquial term, but we take measures of how people -- how satisfied people are with their lives in genera