This book provides the latest empirical data on the three forms of resilience: informality, solidarities and unpaid care-work. It uncovers and quantifies these three forms of resilience that are generally invisible or ill recognised, whereas these play a major role in the livelihoods of poor and vulnerable populations. The book shows how the slow but constant unveiling of these forms over the past four decades has gradually changed our vision of progress and development and is impacting the norms and concepts that shape our vision of the economy and society. The book also emphasizes the role of informal economy through explaining the origins of the concept, its definitions and the methods of data collection and measurement. As such the book will be of interest to students, researchers and policy makers in population studies, economics, and international development.