About
I am a PhD candidate at the MIT Sloan School of Management, affiliated with the Institute for Work and Employment Research. I study work, organizations, and inequality. Specifically, my research examines how firms organize work, how jobs change in response to consumer markets and technology, and how these choices shape pay inequality between firms and workers. To study these questions, I combine restricted-access administrative records with large-scale digital traces such as mobile location records, online job postings, and resumes.
I am on the 2026–27 academic job market. My CV is available here.
Job Market Paper
“From Wallets to Wages: Consumer Income, Job Design, and Pay Disparities”
· Draft available upon request
· Draft available upon request
Nearly half of US wage inequality occurs between firms. Prior research has traced between-firm
pay differences to discretion in pay setting, or to variation in productivity and labor market
power. Yet these firm-level factors are themselves tied to whom firms serve. Because
higher-income consumers demand quality, firms serving them build jobs from higher-standard
variants of similar tasks. And because workers who can perform many such tasks are scarce,
these firms respond by specializing their jobs, not by enriching them. Matching consumer foot
traffic data to administrative wage records, I find that establishments serving higher-income
consumers pay their workers more, even comparing establishments within the same narrow
industry and neighborhood. Analysis of online job postings shows that jobs at
higher-income-serving firms bundle fewer tasks and, within similar categories of work,
higher-priced variants of those tasks. Task breadth commands a wage premium only at these
firms, and only when it spans higher-priced variants. Consumer inequality thus reaches inside
firms, reorganizing the same occupations into different jobs and reemerging as pay inequality
between firms in the service economy.
Publications
“Rising Wages and the Decline of Low-wage Work.”
Accepted, American Sociological Review. (*equal first authorship)
From 2014 to 2024, the share of US hourly workers paid below $15 in real terms fell by
two-thirds, from 38% to 13%. Why? We first distinguish entry and exit from organizational
changes among incumbent employers. Organizational changes can, in turn, be imposed on
employers by external constraints, like labor market tightness, or emerge from the pursuit
of new opportunities. Using restricted-access panel data drawn from administrative records
and job reviews, we bring this framework to bear on the recent wage gains at the bottom of
the labor market. Contrary to creative-destruction predictions, employer exit contributed
little to rising pay at the bottom. Low-paying employers of low-wage occupations contracted,
but the main driver of rising pay was low- and middle-paying incumbent employers of low-wage
occupations increasing pay. These gains in low-wage occupations were associated with
tightening labor markets and increased minimum wages. But over and above these external
constraints, employers also pursued new opportunities for reorganizing work in low-skill
jobs. Notwithstanding organizational inertia, major gains for workers’ pay can come from
changes in existing workplaces.
“Declining Inequality and Persistent Inequality Structures.”
Sociological Science 13: 614–644.
· Data & Code
· Data & Code
Prior research finds that rising labor market inequality in the United States was abetted
by structural changes in the economy: a consolidation of occupation and organizational bases
of advantage; rising within-job inequality; and declining pay and employment in middle-earning
jobs. In this article, we revisit these structural changes by asking whether they have been
reversed as labor market inequality fell over the last decade. Drawing on restricted-use
microdata from the Occupational Employment and Wages Statistics, we find that declining
inequality is due to declining inequality in occupation premiums. There has been only a small
reversal of consolidation and no decrease in inequality within jobs. Low-wage jobs gained on
shrinking middle-earning occupations, further eroding union, manufacturing, and public sector
wage premiums. These findings demonstrate a novel configuration of labor market inequality,
in which pay rose in low-wage jobs, but underlying inequality structures in the economy
persisted.
Working Papers
“Corporate Minimum Wages and Working Poverty.”
Revise & Resubmit, ILR Review.
Starting in 2014, large US retail and warehouse employers began publicizing new voluntary
corporate minimum wages. These minimums provided a new wage floor affecting millions of
workers. We draw on novel employer-linked household panel data to investigate the impact of
this new organizational policy on workers. Corporate minimums effectively reduce low-wage
work and narrow pay gaps within organizations. These policies deliver substantial reductions
in covered workers’ likelihood of poverty. Working poverty at adopting firms falls sharply
by 30% to 50%, relative to workers in similar jobs, labor markets and competitor employers.
Poverty reduction is not explained by shifting worker selection, pre-trends, or offsetting
decreases in hours or health insurance. However, adopters employ more college-educated
workers and intensify work. These findings show that wage-setting decisions by large
employers have substantial social consequences, shaping inequality at the bottom of the
labor market.
Work in Progress
“Technological Change and the Reorganization of Work.”
Links resume and patent data to show that new technologies concentrate affected tasks within the jobs that perform them, and that this reorganization limits workers’ upward mobility, as workers shed the tasks that help them climb job ladders.
Links resume and patent data to show that new technologies concentrate affected tasks within the jobs that perform them, and that this reorganization limits workers’ upward mobility, as workers shed the tasks that help them climb job ladders.
Contact
Soohyun Roh
MIT Sloan School of Management
100 Main Street, E62-381
Cambridge, MA 02139
rohs@mit.edu