Powdthavee, Nick. <br/><br/>
The happiness equation :  the surprising economics of our most valuable asset / 
Nick Powdthavee. 
 - London :  Icon,  2011. 
 - 249 p. ;  20 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9781848312463 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Psychological aspects.<br/>Happiness--Economic aspects.