9 citations · 32 across the 16 of their papers we have counts for
Showing 2016Show all
3 papers · 1 filter
stat.ME2016★ 1 cited
Using Missing Types to Improve Partial Identification with Application to a Study of HIV Prevalence in Malawi
Zhichao Jiang, Peng Ding
Frequently, empirical studies are plagued with missing data. When the data are missing not at random, the parameter of interest is not identifiable in general. Without additional a…
math.ST2016
The Directions of Selection Bias
Zhichao Jiang, Peng Ding
We show that if the exposure and the outcome affect the selection indicator in the same direction and have non-positive interaction on the risk difference, risk ratio or odds ratio…
stat.ME2016
Robust Modeling Using Non-Elliptically Contoured Multivariate t Distributions
Zhichao Jiang, Peng Ding
Models based on multivariate t distributions are widely applied to analyze data with heavy tails. However, all the marginal distributions of the multivariate t distributions are re…