Poverty traps are rare, but trappedness isn't
Isaak Mengesha, Debraj Roy

TL;DR
This paper introduces trappedness, a measure of expected time to escape poverty, showing it varies across countries and is influenced by health and institutional factors, challenging traditional poverty trap theories.
Contribution
It demonstrates that trappedness, a multidimensional and institutionally shaped measure, explains poverty persistence better than traditional indices, using longitudinal data and Markov models.
Findings
Countries with similar deprivation rates differ in escape times up to fourfold.
Health constraints limit the effectiveness of income transfers alone.
Combined interventions of income and health are super-additive in reducing trappedness.
Abstract
The persistence of poverty is not well explained by who is poor. We argue the relevant object of measurement is trappedness--expected escape time from deprivation--which varies systematically across institutional environments and is invisible to standard poverty indices. Using Markov chains estimated on twenty years of longitudinal data from 27 European countries, we show that countries with identical deprivation rates differ in escape times by up to fourfold. These differences are not explained by household characteristics alone: exogenous shocks reshape welfare landscapes differently across countries, with divergence tracking welfare regime architecture rather than household composition. The mechanism is behavioural: health constrains a household's capacity to convert income gains into durable welfare improvement. Income transfers without health improvement fail to reduce…
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Taxonomy
TopicsIncome, Poverty, and Inequality · Poverty, Education, and Child Welfare · Health disparities and outcomes
