In this paper, we consider what may be done when researchers anticipate that in the implementation of field experiments, random assignment to experimental and control groups is likely to be flawed. We ...

Our results apply to the random assignment problem as well. Econometrica publishes original articles in all branches of economics - theoretical and empirical, abstract and applied, providing ...

Public sources of random numbers are used for various applications, such as lotteries, jury-duty selection and the assignment of placebos in clinical trials.