This book explores the role of expectations within the modern capitalist system. Through looking at how they are formed and develop, the impact of events that lead to a collapse in expectations, such as a major financial crisis, is examined to highlight the precarious and unstable nature of the economic system. With a particular focus on the UK and USA, it is also considered how public policy and institutions can shift the balance away from speculation and back towards enterprise. This book aims to conceptualise instability and highlight how economic and regulatory policy can limit it. It will be relevant to researchers and policymakers interested in economic policy and regulatory reform.