This study estimates the population distributions by per capita income in 2001 and 2011 in 111 countries. The distributions are derived from household survey data collected in each country. For most ...

ESA has adopted a society-wide Open Research Policy for its publications to further support scientific exploration and preservation, allow a full assessment of published research, and streamline ...

Social science researchers engaged in primary data collection often consider a range of ethical issues during the planning of their research, but such considerations are rarely articulated upfront or ...