| Causal inference with observational data A Nichols The Stata Journal 7 (4), 507-541, 2007 | 502 | 2007 |
| The earned income tax credit A Nichols, J Rothstein Economics of Means-Tested Transfer Programs in the United States, Volume 1 …, 2015 | 311 | 2015 |
| The economic security index: A new measure for research and policy analysis JS Hacker, GA Huber, A Nichols, P Rehm, M Schlesinger, R Valletta, ... Review of Income and Wealth 60, S5-S32, 2014 | 301 | 2014 |
| Consequences of long-term unemployment A Nichols, J Mitchell, S Lindner Washington, DC: The Urban Institute, 2013 | 220 | 2013 |
| Hospital ownership and medical services: Market mix, spillover effects, and nonprofit objectives JR Horwitz, A Nichols Journal of health economics 28 (5), 924-937, 2009 | 215 | 2009 |
| Clustered errors in Stata A Nichols, M Schaffer United Kingdom Stata Users’ Group Meeting, 133-138, 2007 | 147 | 2007 |
| Retooling poverty targeting using out-of-sample validation and machine learning L McBride, A Nichols The World Bank Economic Review 32 (3), 531-550, 2018 | 133 | 2018 |
| The attack on nonprofit status: A charitable assessment JR Hines Jr, JR Horwitz, A Nichols Mich. L. Rev. 108, 1179, 2009 | 112 | 2009 |
| rd: Stata module for regression discontinuity estimation A Nichols Boston College Department of Economics, 2016 | 86 | 2016 |
| Erratum and discussion of propensity-score reweighting A Nichols The Stata Journal 8 (4), 532-539, 2008 | 84 | 2008 |
| Clustered standard errors in Stata A Nichols, ME Schaffer United Kingdom Stata Users' Group Meetings 2007, 2007 | 81 | 2007 |
| BACONDECOMP: Stata module to perform a Bacon decomposition of difference-in-differences estimation A Goodman-Bacon, T Goldring, A Nichols | 80 | 2019 |
| rd 2.0: Revised Stata module for regression discontinuity estimation A Nichols | 80 | 2011 |
| Dynamics of being disconnected from work and TANF P Loprest, A Nichols Washington, DC: Urban Institute, 2011 | 79 | 2011 |
| Regression for nonnegative skewed dependent variables A Nichols BOS10 Stata Conference 2, 15-16, 2010 | 74 | 2010 |
| What do nonprofits maximize? Nonprofit hospital service provision and market ownership mix J Horwitz, A Nichols National Bureau of Economic Research, 2007 | 66 | 2007 |
| The welfare implications of increasing disability insurance benefit generosity J Bound, JB Cullen, A Nichols, L Schmidt Journal of public Economics 88 (12), 2487-2514, 2004 | 66 | 2004 |
| Who are low-income working families? G Acs The Urban Institute, 2005 | 62 | 2005 |
| Tracking the household income of SSDI and SSI applicants J Bound, RV Burkhauser, A Nichols Worker well-being and public policy, 113-158, 2003 | 60 | 2003 |
| Causal inference for binary regression A Nichols Stata Conference Chicago (version June 14, 2011), 2011 | 59 | 2011 |
