Lin, Zhiyong
Desai, Sonalde
Chen, Feinian
Article History
First Online: 10 June 2020
Compliance With Ethical Standards
:
: The authors declare that they have no conflict of interest.
: Data collection was approved by the Ethics Review Committee of the National Council of Applied Economic Research, Delhi, India, and the Institutional Review Board of the University of Maryland, College Park, USA. Informed consent was obtained from all individual participants included in the study and their privacy would be strictly protected.