Some unpublished manuscripts

  • Hyperspectral image unmixing: accounting for wavelength dependence. (File in pdf). Joint work with  Chia Chye Yee.
  • Randomized Evaluation of Institutions: Theory with Application to Voting and Deliberation Experiments. With Leonard Wantchekon (file in pdf).
  • Ethnic Solidarity and National Public Goods Programmes: Evidence from a Field Experiment with Gwyneth McClendon, and Leonard Wantchekon (here is a pdf version ).
  • A strong law of large numbers for martingale arrays. (file in pdf).
  • Scalable Computation of Regularized Precision Matrices via Stochastic Optimization. (File in pdf). (2016) Joint with Rahul Mazumder, and Jie Chen.
  • A Moreau-Yosida approximation for high-dimensional posterior  distributions (2017). (File in pdf).   A Matlab implementation of some of the methods is available here.