42 citations · 99 across the 17 of their papers we have counts for
Showing 2018Show all
3 papers · 1 filter
math.CV2018★ 4 cited
Controlled diffeomorphic extension of homeomorphisms
Pekka Koskela, Zhuang Wang, Haiqing Xu
Let be an internal chord-arc Jordan domain and be a homeomorphism. We show that has finite dyadic energy if and only if has a diffeomo…
econ.EM2018
Testing for Unobserved Heterogeneous Treatment Effects with Observational Data
Yu-Chin Hsu, Ta-Cheng Huang, Haiqing Xu
Unobserved heterogeneous treatment effects have been emphasized in the recent policy evaluation literature (see e.g., Heckman and Vytlacil, 2005). This paper proposes a nonparametr…
stat.ME2018★ 1 cited
Estimation of treatment effects under endogeneous heteroskedasticity
Jason Abrevaya, Haiqing Xu
The empirical literature on program evaluation limits its scope almost exclusively to models where treatment effects are homogenous for observationally identical individuals. This…