Junjian Yi is an assistant professor in the Department of Economics at National University of Singapore since July, 2014. He was a postdoctoral scholar in the Department of Economics at the University of Chicago in 2011-2014. He obtained his Masters degree in Economics from Zhejiang University in 2005. In 2007, Dr. Yi received his M.Phil. degree in Economics. In 2011, he received his Ph.D. in Economics. Both degrees were completed in the Chinese University of Hong Kong. Dr. Yi’s fields of interest include Labor and Demographic Economics, Economic Development, Economics on Human Capital, and the Chinese Economy. In particular, he has been focusing on three major questions over the past few years. (1) How does the intra-household resource allocation affect children's human capital and preference formation? (2) What are the causes and consequences of the demographic transition in China and East Asia? (3) How to understand the Chinese economic transition from a human capital perspective? His recent research papers have appeared in economics and demography journals, such as Review of Economics and Statistics, Demography, and Economic Inquiry.

He joined IZA as a Research Fellow in August 2014.



IZA Discussion Paper No. 10528
Wenchao Li, Changcheng Song, Shu Xu, Junjian Yi

This paper bridges the financial market and the marriage market using a reference-dependent mechanism. Male-biased sex ratios induce families with sons to hold more risky assets, since competitive marital payment in a tight market raises the reference level of marriage expenditure for such families. Using the 2013 China Household Finance...

IZA Discussion Paper No. 10519
forthcoming in: Management Science, 2017

We study the role of risk aversion underlying son preference in patriarchal societies, where sons serve as better insurance for old-age support than daughters. The implications of an insurance motive on son preference are two-fold. First, prior to the birth of their children, more risk-averse parents have a stronger preference...

IZA Discussion Paper No. 9342

This paper tests the effects of fertility on household structure and parental labor supply in rural China. To solve the endogeneity problem, we use a unique survey on households with twin children and a comparison group of non-twin households. The ordinary least squares estimates show a negative correlation between fertility...

IZA Discussion Paper No. 9214
Wenchao Li, Junjian Yi

This paper first finds a clear pattern of child gender difference in family migration in China. Specifically, our estimates show that on average, the first child being a son increases the father's migration probability by 25.2 percent. We hypothesize that the family's competitive earning incentive for sons drives this child...

IZA Discussion Paper No. 8711
published in: Economic Journal, 2015, 124 (588), F347–F371

An open question in the literature is whether families compensate or reinforce the impact of child health shocks. Discussions usually focus on one dimension of child investment. This paper examines multiple dimensions using household survey data on Chinese child twins whose average age is 11. We find that, compared with...

IZA Discussion Paper No. 7293
revised version available here; forthcoming in: International Economic Review, 2017

We study the rise in marriages between residents of HK and China following the handover of HK to China in 1997. Cross-boundary marriages accounted for almost half the marriages registered in HK in 2006. Because of large differences in male income between China and HK, marriages of HK men with...

IZA Discussion Paper No. 6550
published in: S. Fan, R. Kanbur, S. Wei, and X. Zhang (eds)., The Oxford Companion to the Economics of China on Human Capital, Oxford: OUP, 2014

China's rapid growth was fueled by substantial physical capital investments applied to a large stock of medium skilled labor acquired before economic reforms began. As development proceeded, the demand for high skilled labor has grown, and, in the past decade, China has made substantial investments in producing it. The egalitarian...

IZA Discussion Paper No. 5149
published in: Demography, 2011, 48 (4), 1535-1557

In China, the male-biased sex ratio has increased significantly. Because the one-child policy only applied to the Han Chinese but not to minorities, this unique affirmative policy allows us to identify the causal effect of the one-child policy on the increase in sex ratios by a difference-in-differences (DD) estimator. Using...

IZA Discussion Paper No. 3214
published in: Review of Economics and Statistics, 2013, 95(5), 1520-1534.

Sex ratios (males to females) rose markedly in China in the last two decades, and crime rates nearly doubled. This paper examines whether the two are causally linked. High sex ratios imply fewer married men, and marriage has been conjectured to be a socializing force. Our paper exploits the quasi-natural...