Why are some nations wealthy and others poor? How did the wealthy nations become rich? What are the components of wealth? How should nations manage their wealth for the future? These are among the most important questions in economics.

This book, together with volume 1, documents this interesting development and explores the underlying causes. The findings are brought together in a final summary chapter by Atkinson, Piketty and Saez.

An important part of the motivation for the new architecture is to integrate the different components and make them consistent. This volume is the first step toward achieving that goal.

This paper analyzes the extent of income inequality from a global perspective, its drivers, and what to do about it.

This paper reviews the theoretical and empirical literature on the complex links between growth, inequality, and poverty, with causation going in both directions.

This volume contains papers presented at a conference in May 1988 in Washington, D.C., commemorating the fiftieth anniversary of the founding of the Conference on Research in Income and Wealth (CRIW).

This volume is part of a recently completed research project at the World Bank that reviewed the macroeconomic experience of 18 developing countries from the mid-1960s.