Inequality and social exclusion receive considerable contemporary policy attention. In the field of international development, inequality - both vertical (between individuals and households) and horizontal (between groups) - is a core concern in the 2030 Agenda for Sustainable Development....

A large body of recent quantitative work on the 'diversity detriment' hypothesis finds that ethno-religious diversity is linked with a host of societal ills, implying in turn a strong challenge to multiculturalist theory and policies. Given the stakes, the appropriate conceptualization and...

Countering recent rises in many countries of inequality in income and wealth is widely recognized as a major development challenge. This is so from an ethical perspective and because greater inequality is perceived to be detrimental to key development aims. Still, an informed debate on the...

A growing body of research shows that COVID-19 both reflects and exacerbates existing inequalities. However, there are significant gaps in this research area with respect to 'horizontal' or group-based inequalities in Global South countries. Lack of group-disaggregated data often contributes. In...

Using illustrations from research on inequality, this paper offers evidence on the strengths of 'behavioural synthesis', i.e. the reconciliation between neoclassical and behavioural economics. We compare how theoretical models of absolute and relative inequality have evolved from assumptions of...

We expect effective state institutions to matter in a country's ability to respond to crises. Yet notably in the first year of the COVID-19 pandemic, what has stood out in simple global snapshots is that wealthier countries with stronger institutions have had the highest numbers of cases and...