Social enterprise has become a much discussed term in recent years, often in conjunction with the public sector - the idea that entrepreneurship might somehow step in and save the public purse has taken hold in a number of areas. This book introduces and explains the terminology surrounding social enterprise and brings much-needed rigour to proceedings by demonstrating how this can be measured, evaluated and held accountable. A range of validated evaluation measures, tools and techniques, such as 'SROI', the 'Outcomes Star' and randomised control trials, are presented in individual research...