Labour markets are a central engine of economic inequality: the wages, bargaining power, and job opportunities available to workers shape who prospers and who is left behind. Our team studies how labour market institutions and policies -- from minimum wages to collective bargaining -- influence the distribution of earnings, and how the power of employers affects the fortunes of low-wage workers. Our recent work has examined how minimum wage policies interact with worker power to shape wage growth, how the expansion of dominant employers such as Walmart Supercenters affects local labour markets and workers' earnings, and how labour market institutions more broadly structure patterns of social and economic stratification.
Project Leader / Primary Investigator
Zachary Parolin
Recent Publications
Jun 2026
Power and poverty: The distributional consequences of Walmart Supercenter openings
in Labour Economics
Lukas Lehner , Zachary Parolin , Clemente Pignatti , Rafael Pintro-Schmitt
in Labour Economics
Lukas Lehner , Zachary Parolin , Clemente Pignatti , Rafael Pintro-Schmitt
May 2026
Countervailing Powers: Labor Unions Against the Buyer Power of Walmart Supercenters
in American Sociological Review
Joshua Choper , Lukas Lehner , Zachary Parolin
in American Sociological Review
Joshua Choper , Lukas Lehner , Zachary Parolin
Oct 2025
No. 2025-23 - The Effects of Minimum Wage Increases on Poverty and Food Hardship
Lukas Lehner , Hannah Massenbauer , Zachary Parolin , Rafael Pintro-Schmitt
Lukas Lehner , Hannah Massenbauer , Zachary Parolin , Rafael Pintro-Schmitt
Sept 2024
No. 2024-07 - Monopsony Power and Poverty: The Consequences of Walmart Supercenter Openings
Lukas Lehner , Zachary Parolin , Clemente Pignatti , Rafael Pintro-Schmitt
Lukas Lehner , Zachary Parolin , Clemente Pignatti , Rafael Pintro-Schmitt