The international community's commitment to halve global poverty by 2015 has been enshrined in the first Millennium Development Goal. How global poverty is measured is a critical element in assessing progress towards this goal, and different researchers have presented widely-varying estimates. The chapters in this volume address a range of problems in the measurement and estimation of global poverty, from a variety of viewpoints. Topics covered include the controversies surrounding the definition of a global poverty line; the use of purchasing power parity exchange rates to map the poverty...