Wage Changes and Women's Health Spending: Evidence from India
with S. Bhattacharyya , C. Chatterjee and S. Chatterjee, Oxford Open Economics, Volume 5, June 2026
In this paper, we explore the little studied role of gender-based tastes and preferences in the empirical relationship between income and demand for health care. Based on a large body of evidence which suggests that the gender identity of the recipient of money can significantly influence allocation of resources within the household, we conjecture that an increase in women’s income may have interesting and unconventional effects on demand for healthcare. Using data from a high-frequency large nationally representative household survey in India, we exploit exogenous variation in women’s take-home salary, generated by a change in the mandated rates of contribution to the employees’ provident fund, to estimate impacts on health care spending. We find that an unanticipated income shock is associated with a decrease in overall spending on healthcare in female led households even after controlling for improved health outcomes for women, health-status, healthcare utilization at the intensive margin (i.e. hospital visits to seek treatment). Our results suggest that healthcare spending by women in India and the global south is guided by dynamic preferences and social norms.
Breaking Barriers to Women's Reproductive Choice: Evidence from Online Pharmacies in India
Despite availability of modern contraceptives, high unmet need for such methods persists in developing countries, suggesting that barriers beyond access constrain women's reproductive choices. Social stigma around contraceptive procurement may prevent women from acting on existing preferences. This paper exploits the staggered expansion of e-pharmacies across Indian districts to test whether digital healthcare platforms that provide anonymity and doorstep delivery causally affect women's reproductive outcomes. Using a difference-in-differences framework, I find that e-pharmacy access generates a significant and persistent decline in abortions while producing only short-run decline in fertility. These impacts are concentrated in rural districts and districts with lower female literacy- settings where social constraints are most binding. Survey evidence reveals that e-pharmacy access increases contraceptive use to delay pregnancy and enables women to make contraceptive use decisions independently. Critically, contraceptive usage rises without corresponding changes in awareness of modern methods, indicating that information was not the binding constraint. Distance to physical pharmacies exhibits no relationship with online sales or reproductive outcomes, ruling out physical access as the operative channel. These findings demonstrate that privacy and autonomy rather than information or access, constitute the binding constraints on contraceptive use. The results highlight the potential for digital technologies to expand women's reproductive choice in settings where social stigma limits access to reproductive healthcare.
Strong IPR, Better Inclusion? Impact of WTO Accession on Female AI Inventors in China
with Sawan Rathi , Chirantan Chatterjee and Matthew J. Higgins
Do stronger intellectual property rights (IPR) incentivize women’s participation in innovation? We provide new causal evidence on this question using the USPTO’s Artificial Intelligence Patent Dataset. Our identification strategy exploits China’s WTO TRIPS accession, which led to a substantial strengthening of IPR in 2002. Our results show that post-WTO accession, the number of patents with at least one female inventor in China rose by 95%, and the number of individual female inventors increased by 111%, relative to other countries. We also find significant improvement in patent quality measured by forward citations, strategic importance, and patent impact scores. Heterogeneity analysis shows that gains were concentrated in less complex AI technologies such as computer vision and knowledge processing, with smaller increases in frontier areas like machine learning and evolutionary computation. Our results are robust to alternative control groups, synthetic controls, coarsened exact matching, and randomized inference tests. We identify three mechanisms underlying this surge in female innovation. First, the share of domestic female inventors on patenting teams rose sharply. Second, patents with female inventors increasingly originated from private firms rather than state-owned enterprises, reflecting market liberalization effects. Third, systematic investment in women’s higher education expanded the pool of qualified female researchers. Together, these findings suggest that while China’s WTO accession provided an exogenous policy shock, complementary institutional reforms were essential in enabling women’s participation in the innovation economy. Overall, the results highlight that stronger intellectual property rights when embedded in supportive institutional contexts can foster both technological progress and gender inclusion.
Step Together (2025) assisted T. Kirchmaier with Y. Saedi, J. Friedberg and R. Wang (Evaluation Report )
Covid-19 and Changing Crime Trends in England and Wales (2022) with Carmen Villa-Llera and Tom Kirchmaier (CEP Covid-19 Analysis Series N.27 )
Can Digitisation be Leveraged for Correcting Gender Distortions in Healthcare? (2022) with P. Manchanda (IHOPE Journal of Opthalmology)
*Invited to attend