%0 Report %A Riddell, Chris %A Riddell, W. Craig %T Welfare versus Work under a Negative Income Tax: Evidence from the Gary, Seattle, Denver and Manitoba Income Maintenance Experiments %D 2021 %8 2021 Jul %I Institute of Labor Economics (IZA) %C Bonn %7 IZA Discussion Paper %N 14585 %U https://www.iza.org/index.php/publications/dp14585 %X 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. %K income maintenance experiments %K welfare %K negative income tax %K labour supply