@article{optimumstatisticalestimationwithstrategi,
  title = {Optimum Statistical Estimation with Strategic Data Sources},
  author = {Yang Cai and Constantinos Daskalakis and Christos H. Papadimitriou},
  year = {2014},
  eprint = {1408.2539},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1408.2539v2},
}