Click on the titles to read
abstracts and download the papers.
Published Papers
Do
Employment
Subsidies Work? Evidence from Regionally Targeted Subsidies
in Turkey
(with Gordon Betcherman and
Carmen
Pages), Labour
Economics,
17:4 (August 2010) 710-722.
This paper
studies the effects on
registered employment and number of registered establishments of two
employment subsidy schemes in Turkey. We implement a
difference-in-differences methodology to construct appropriate
counterfactuals for the covered provinces. Our findings suggest that
both subsidy programs did lead to significant net increases in
registered jobs in eligible provinces (5%-13% for the first program
and 11%-15% for the second). However, the cost of the actual job
creation was high because of substantial deadweight losses,
particularly for the first program (47% and 78%). Because of better
design features, the second subsidy program had lower, though still
significant, deadweight losses (27%-46%). Although constrained by
data availability, the evidence suggests that the dominant effect of
subsidies was to increase social security registration of firms and
workers rather than boosting total employment and economic activity.
This supports the theory that in countries with weak enforcement
institutions, high labor taxes on low-wage workers may lead to
substantial incentives for firms and workers to operate informally.
Working Papers
Does
Uninsurance Affect the Health
Outcomes of the Insured? Evidence from
Heart Attack Patients in California,
Revised May
2011. Revise and Resubmit at Journal
of Health Economics.
Mentioned
in "The Economic Case For Health Care
Reform"
(Council of Economic Advisers).
In this
paper, I examine the impact of uninsured patients on the health of the
insured, focusing on one health outcome -- the in-hospital mortality
rate of insured
heart attack patients. I employ panel data models using patient
discharge and hospital
nancial data from California (1999-2006). My results indicate that
uninsured patients
have an economically significant effect that increases the mortality
rate of insured heart
attack patients. I show that these results are not driven by
alternative explanations,
including reverse causality, patient composition effects, sample
selection or unobserved
trends and that they are robust to a host of specification checks. My
results also
indicate that the primary channel for the observed spillover effects is
increased hospital
uncompensated care costs. Although data limitations constrain my
capacity to check
how hospitals change their provision of care to insured heart attack
patients in response
to reduced revenues, the evidence I have suggests a modest increase in
the quantity of
cardiac services without a corresponding increase in hospital staff.
The
Miracle Drugs:
Hormone Replacement Therapy and Labor Market Behavior of Middle Aged
Women
(with Chiara
Orsini, University of Venice),
Revised November
2011. Under
Review.
In an
aging society, determining which factors
contribute to the employment of older individuals is
increasingly important. This paper sheds light on the impact of medical
innovation in the form of Hormone
Replacement Therapy (HRT) on employment of middle-aged women. HRT are
drugs taken by middle-aged
women to soften symptoms related to menopause. Before 2002, HRT
products were among the most popular
prescription drugs in America. We use the timing of the release of
information of the potential hazardous
effects of HRT — uncovered in 2002 by the largest randomized
trials on women ever undertaken — as an
instrument for the purchase of the affected drugs within a Fixed Effect
Instrumental Variable framework. We
find that HRT use impacts employment: namely, that HRT use increases
employment by 25 percentage points
among middle-aged women who would have taken HRT but who do not take
HRT after the release of
information of its potential hazardous effects.
Spillover
Effects of Drug Safety Warnings on Health Behavior
(with Chiara
Orsini, University of Venice), Revised January 2012.
Currently under revision.
Impact
of Bilingual Education Programs on Limited English Proficient Students
and Their Peers: Regression Discontinuity Evidence from Texas
(with Aimee Chin, University of Houston and Scott Imberman, University
of Houston), Revised October 2011.
To
estimate the causal effect of bilingual education on the academic
achievement of limited English proficient (LEP) students and their
peers, we exploit a policy rule in Texas requiring a school district to
offer bilingual education when its enrollment of LEP students in a
particular elementary grade level and language is twenty or higher.
Using school panel data for 1998-99 to 2009-10, we find evidence of a
significant jump up in the probability that a district offers bilingual
education above this 20-student cutoff. Using this variation in
exposure to bilingual education, we find that bilingual education has
weak positive effects on the standardized test scores of non-LEP,
non-Spanish home language students and no effects on Spanish home
language students. We are able to rule out even relatively small
harmful effects on non-LEP, non-Spanish home language students with 95
percent confidence.
Selected Work in Progress (all
titles provisional)
The
Effects of Immigration on Native Crime: Evidence from Hurricane Mitch
(with Mircea Trandafir, Universite de Sherbrooke)
Returns
to Medical Care: Evidence from Homebirths in the Netherlands
(with Mircea Trandafir, Universite de Sherbrooke and Reyn van Ewijk, VU
University Amsterdam)
Effects
of
Language Proficiency on Health and Health Behavior
(with
Ana Ferrer, University of Calgary and Mircea Trandafir, Universite de
Sherbrooke)
Income
and
Short-Term Health Outcomes
(with Bill Evans, University of
Notre Dame and Patrick Hullegie, VU
University Amsterdam)