Do migrants respond to differences in access to public goods and services in addition to income prospects of potential destinations? This issue is important in developing countries where provision of basic public goods affects not only income prospects but also quality of life. And in these countries, provision of public goods tends to vary widely across areas. In a Tiebout (1956) sorting model, such disparity in the provision of public goods such as roads, electricity, schools, hospitals, etc. should induce people to "vote with their feet" and to migrate to areas with better access to these infrastructures and services.
Last week, Oxfam released a powerful report on inequality, “Working for the Many: Public services fight inequality.” The report makes a persuasive case for the need to bring more attention to the issue of inequality in policy discussions. Indeed, at the recent World Economic Forum Annual Meeting, World Bank President Jim Yong Kim stated that “at Davos, income inequality should be front and center” as an important item on the global agenda. I was recently a discussant in a session on the Oxfam report at a Spring Meetings event alongside Max Lawson of Oxfam Great Britain and David Coady of the IMF's Fiscal Affairs Department. The case Oxfam makes that inequality is harmful to the global economy is well articulated and their prescription for a solution is highly focused: increase the amount of progressive taxation to fund free and universal health and education. In the following slides, I provide a few examples of where we might want to broaden our thinking on the issue of inequality. In particular, I offer a couple of illustrations where a singular focus on inequality would lead us to undervalue some very important progress that has been made in the fight to eliminate poverty. In contrast, by ‘twinning’ the goals of eliminating extreme poverty and boosting shared prosperity, the policies we design may be more likely to ensure that everyone shares in growth and prosperity.