Powdthavee, Nick. <br/><br/>
The happiness equation :  the surprising economics of our most valuable asset / 
Nick Powdthavee. 
 - London :  Icon Books,  2010. 
 - 249 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references (p. 225-244) and index. 
<br/><br/><label>ISBN: </label>9781848311664  RM81.50 1848311664 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Psychological aspects.<br/>Happiness--Economic aspects.