Mario Macis
Research Fellow

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Macis Mario Macis is Associate Professor at Johns Hopkins University, Carey Business School, where he also serves as the Academic Program Director of the MS in Health Care Management. He is also Associate Faculty at the Armstrong Institute for Patient Safety and Quality at the JHU School of Medicine and Faculty Research Fellow at the National Bureau of Economic Research (NBER).

Mario’s research focuses on incentives, pro-social behavior, morally controversial transactions, ethics and economics, global health and labor economics. He has conducted large-scale randomized controlled trials in partnership with blood banks (including the American Red Cross) to study the interplay between intrinsic motivation and incentives in pro-social behavior. In recent work at the intersection of economics and bioethics, he studies attitudes toward morally controversial economic transactions such as payments for human organs for transplantation. In ongoing work, he is running a field experiment that taps into people’s social networks in India to improve tuberculosis detection.

Mario’s research has received various competitive grants, including grants from the National Science Foundation, the National Institutes of Health and the World Bank’s Strategic Impact Evaluation Fund, and was published in prominent academic outlets, including Science, the American Economic Journal: Economic Policy, the Journal of Health Economics, the Journal of Labor Economics, Management Science and Sociological Science.

Mario received his undergraduate degree in Economics and Social Disciplines from Bocconi University in Milan, and his Ph.D. in Economics from the University of Chicago. Prior to joining Carey, he was Assistant Professor of Business Economics and Public Policy at the University of Michigan, Ross School of Business. He has been a consultant for the World Bank, the International Labor Organization and the National Marrow Donor Program.

He joined IZA as a Research Fellow in September 2008.
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IZA World of Labor article: Gender differences in wages and leadership
IZA Discussion Papers:
No. Author(s)
10967  Felipe A. Dunsch
David K. Evans
Ezinne Eze-Ajoku
Mario Macis
Management, Supervision, and Health Care: A Field Experiment
10187  Julio Elias
Nicola Lacetera
Mario Macis
Efficiency-Morality Trade-Offs in Repugnant Transactions: A Choice Experiment
8864  Ricard Gil
Mario Macis
"Ain't No Rest for the Wicked": Population, Crime, and the 2013 Government Shutdown
8602  Luca Flabbi
Mario Macis
Andrea Moro
Fabiano Schivardi
Do Female Executives Make a Difference? The Impact of Female Leadership on Gender Gaps and Firm Performance
8171  Nicola Lacetera
Mario Macis
Angelo Mele
Viral Altruism? Generosity and Social Contagion in Online Networks
6814  Nicola Lacetera
Mario Macis
Sarah S. Stith
Removing Financial Barriers to Organ and Bone Marrow Donation: The Effect of Leave and Tax Legislation in the U.S.
(published in: Journal of Health Economics, 2014, 33, 43-56)
6466  Mario Macis
Fabiano Schivardi
Exports and Wages: Rent Sharing, Workforce Composition or Returns to Skills?
((Forthcoming in the Journal of Labor Economics))
This paper has repeatedly been among the Top 10 monthly downloads. 
Nicola Lacetera
Mario Macis
Robert Slonim
Will There Be Blood? Incentives and Substitution Effects in Pro-social Behavior
(published in: American Economic Journal: Economic Policy, 2012, 4 (1), 186-223 as "Will There be Blood? Incentives and Displacement Effects in Pro-Social Behavior")
4458  Nicola Lacetera
Mario Macis
Do All Material Incentives for Prosocial Activities Backfire? The Response to Cash and Non-Cash Incentives for Blood Donations
(published in: Journal of Economic Psychology, 2010, 31 (4), 738-748)
3771  Nicola Lacetera
Mario Macis
Social Image Concerns and Pro-Social Behavior
(published in: Journal of Economic Behavior and Organization, 2010, 76 (2), 225-237)
3770  Nicola Lacetera
Mario Macis
Motivating Altruism: A Field Study
(published as 'Time for Blood: The Effect of Paid Leave Legislation on Altruistic Behavior' in: Journal of Law, Economics and Organization, 2013, 29(6), 1384-1420)
3371  Tito Boeri
Mario Macis
Do Unemployment Benefits Promote or Hinder Structural Change?
(published in: Journal of Development Economics 93 (2010) 109-125)