TY - RPRT AU - Riddell, Chris AU - Riddell, W. Craig TI - Welfare versus Work under a Negative Income Tax: Evidence from the Gary, Seattle, Denver and Manitoba Income Maintenance Experiments PY - 2021/Jul/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 14585 UR - https://www.iza.org/index.php/publications/dp14585 AB - The Income Maintenance Experiments have received renewed attention due to growing international interest in a Basic Income. Proponents viewed a Negative Income Tax as a replacement for traditional welfare with stronger work incentives and reduced poverty. However, existing labor supply estimates for single parents are uniformly negative. We re-assess the experimental evidence and find randomization failure in two NITs (Gary and Seattle). In Denver and Manitoba, we find a positive labor supply response for those on welfare prior to random assignment. Our results provide strong evidence that a NIT can increase work activity among single parents on welfare. KW - income maintenance experiments KW - welfare KW - negative income tax KW - labour supply ER -