The New Economic Approach (NEA) has revolutionized economic disciplines by positing many social and political issues as endogenous variables, and makes rigorous and scientific analysis possible through a neo-classical framework. The NEA unravels familial behaviour, fertility, marriage, altruism, discrimination, dowry, love, crime and punishment and addiction. This new approach has been revolutionary in that it accommodates tools and theories that move beyond the neoclassical framework. The new political economy, pressure groups, rent-seeking and organ donation are but a few of the issues analysed with the aid of the public choice theory, new institutional economics and the principal-agent theorem. This volume shines a light on these topics and subjects them to critical analysis. It is a unique work, catering to academics, researchers and policymakers.