This landmark new text charts the latest developments in economic research relevant to farm animal welfare. A range of global experts and key opinion leaders outline the challenges of achieving sustainable intensification while improving both climate change and animal welfare, and make policy-relevant recommendations for the future. Theoretical yet practical, the book examines: - Origins, cross-disciplinary interactions and the future of farm animal welfare; - Consumer demand and changing preferences as animal welfare rises up the social agenda; - The impact on animal welfare of political organizations such as the EU and WTO. An important resource for policy makers and animal welfare scientists and clinicians, this book provides a thought-provoking yet evidence-based review for all those interested in quantifying farm animal welfare.