What is this book about?

This book by Professor Peter Cameron examines the current multifaceted and multilayered system of legal stability for energy investments and how this system has been tested by unilateral state demands for contract renegotiation. Cameron's contextual point of departure is the extraordinary increase in investor-state disputes in recent years and the growth of protection for investments in international law. In this sense, Cameron wonders how much of a difference it has really made to the energy investment scene.