In the distributive analysis, the constant relative inequality aversion utility function is a standard tool for ethical judgements of income distributions. The sole parameter ε of this function expresses a society's aversion to inequality. However, the profession has not committed to the range...

Research background: Applied welfare economics offers various social welfare functions (SWF) for appraising income distributions. Social planners commonly use two SWFs: SWFε implied by income inequality aversion (ε) and SWFv implied by rank inequality aversion (v). However, a voluntary...

This paper assumes two kinds of social planners who evaluate income distributions concerning social welfare, economic inequality and poverty. The first kind of social planner, SPε , comprises averters to income inequality as measured by the normative parameter ε. The second kind of social...