Ruyi Shi

Ruyi Shi

Higher Degree by Research Candidate

School of Economics and Public Policy

Faculty of Arts, Business, Law and Economics

I'm currently pursuing my Ph.D. at the University of Adelaide, under the guidance of Dr. Nadezhda Baryshnikova and Associate Professor Stephane Mahuteau. My primary research interests are development economics and health economics.

"Internal migration and formal employment: evidence from Indonesia"

This paper examines the causal impact of internal migration on formal employment in Indonesia using longitudinal household survey data from the Indonesia Family Life Survey (IFLS). We use rainfall as the instrumental variable for migration to address the endogeneity bias led by reverse causality. Our empirical results show that, in general, internal migration is expected to increase the chance of having a formal job by approximately 16 percentage points. This impact is heterogeneous across gender and levels of education. The magnitude of this impact rises to around 25 percentage points for males but drops to only 7 percentage points for females. We also find migration only has a significant impact on individuals with senior high school education or higher, with the estimated impact being roughly 20 percentage points. 

Following are some interesting graphs/satellite data used in this paper:

migrants locationsrainfallnighttime lights

      Household locations                           Rainfall data                                Nighttime lights data 


"Adult children’s education and parents’ mental health in China: a quantile approach"

This study examines the heterogeneous effect of adult children’s education on old parents’ mental health in China. We use the exposure of children to the compulsory schooling law as an instrument to address the endogeneity bias of education. Results from the instrumental variable quantile estimation indicate that the effect of children’s education is heterogeneous across the distribution of parental mental health. Specifically, children’s education has a positive impact on alleviating parental mental health issues across all quantiles, with a larger impact observed in parents experiencing more pronounced mental disorders. Additionally, we find that a son’s education has a greater positive impact on parental mental health than a daughter’s. We also find the positive effect is greater for parents living in rural than urban regions.


"Birth order effect and old-age support: new evidence from China"

Work in progress......


ECON 1005 - Introduction of Mathematical Economics (2022S1,2023S1)

ECON 1008 - Data Analytics I (2023S2,2024S1)

ECON 1010 - Mathematical Economics (2022S2)

ECON 2515 - Intermediate Applied Econometrics II (2022S1)

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