This article reports on a randomized field experiment in which potential work migrants from Nepal to Malaysia and the Persian Gulf countries are provided with information on wages and mortality incidences at their intended destinations. It is found that, particularly for the group of potential migrants without prior foreign migration experience, the information changes their expectations of earnings and mortality risks abroad, which further changes their actual migration decisions. Using the exogenous variation in expectations, it is estimated that the elasticity of migration with respect to mortality rate expectation is 0.8, and the elasticity of migration with respect to earnings expectation is 1.1.