High survey nonresponse in unemployment duration studies may have a strong effect on inference if the so called causal mechanism is present. A robust method of testing the causal nonresponse is proposed for data sets where survey information can be combined with complete administrative records....

The paper presents an unbiased and invariant test for testing the hypothesis H0:F=disp G against H1:F [less-than-or-equals, slant]disp G, where G is a known distribution. Asymptotic law of the test statistic under the null hypothesis is established and the consistency of the test under a class...