Ruoyao Shi (史若瑶)

I am an assistant professor at Department of Economics, University of California, Riverside. My research areas are econometrics methods and applied microeconomics.

Here is my CV. Here is my Google Scholar page.

Working Papers

1. Identification and Estimation of Nonparametric Hedonic Equilibrium Model with Unobserved Quality (May 2019, under review) [appendices] [slides]

Abstract: This paper studies a nonparametric hedonic equilibrium model in which certain product characteristics are unobserved by researchers. Unlike most previously studied hedonic models, the observed and unobserved agent heterogeneities both enter the structural functions nonparametrically. Prices are endogenously determined in the equilibrium. Using both within market and cross market price variations, I show the nonparametric identification of all the structural functions of the model up to normalization. In particular, the unobserved product quality function is identified if the relative prices of the agent characteristics differ in at least two markets. Following the constructive identification strategy, I provide easy-to-implement series minimum distance estimators of the structural functions and derive their uniform rates of convergence. To demonstrate the estimation procedure, I estimate the unobserved efficiency of American full-time workers as a function of age and unobserved ability.

2. What Time Use Surveys Can (And Cannot) Tell Us About Labor Supply (joint with Cheng Chou, July 2019, under review) [slides]

Abstract: Nonclassical measurement errors in conventional microeconomic surveys result in biased estimates regarding weekly labor supply. The American Time Use Survey (ATUS) accurately measures hours worked on a single day. We show that despite the impossibility to recover weekly hours, weekly labor supply parameters can be consistently and efficiently estimated using the ATUS. We propose impute estimator and carefully examine its properties. It is a simple modification of the 2SLS estimator, which imputes both dependent and independent variables using daily subsamples. We apply it to the ATUS and find substantially different elasticity estimates from the CPS, especially for married women.

Publications

1. Jinyong Hahn and Ruoyao Shi (2017), "Synthetic Control and Inference." Econometrics, 5(4): 52.

2. Xu Cheng, Zhipeng Liao and Ruoyao Shi (2019), "On Uniform Asymptotic Risk of Averaging GMM Estimators." Quantitative Economics, 10(3), 931-979.

Teaching

PhD

• Econometric Methods I (Fall 2018)
• Topics in Advanced Econometrics (Fall 2018)
• Empirical Methods in Applied Microeconomics (Fall 2017 & Fall 2018)

Undergraduate

• Introductory Econometrics (Fall 2017, Winter 2018 & Spring 2019)

Awards and Fellowships

As Assistant Professor

• Regents Faculty Fellowship for Assistant Professor (UCR, 2019)

As Student

• Dissertation Year Fellowship (UCLA, 2016)
• Edwin W. Pauley Fellowship (UCLA, 2011)
• Distinguished Graduate Student (Peking University, 2011)
• Kwang-Hua Graduate Research Award (Peking University, 2009)
• Graduate Fellowships (Peking University, 2008-2010)
• Distinguished Undergraduate Student (Peking University, 2008)