Does Money Buy Me Love? Testing Alternative Measures of National Wellbeing

Many aggregate measures of wellbeing and sustainability exist to guide policy-makers. However, the power of these aggregate measures to predict objective wellbeing outcomes has received little comparative testing. We compile and compare a range of aggregate wellbeing measures including: material measures (e.g. Gross Domestic Product per capita), surveyed measures (e.g. life satisfaction) and composite measures (e.g. Human Development Index) covering a range of countries. We test the predictive power of wellbeing measures for an objective indicator of how people value countries’ relative attractiveness. The objective indicator is net migration over a fifty year timespan, indicating people’s revealed preference (re)location choices. The paper examines relationships amongst cross-country wellbeing and sustainability measures; and examines how New Zealand compares with other countries according to these measures. Based on models of spatial (dis)equilibrium and migration, we present tests of the predictive power of alternative aggregate measures for international migration outcomes. We find that both material and life satisfaction outcomes are important determinants of the choice to migrate.