We examine instrumental variables estimation in situations where the instrument is only observed for a sub-sample, which is fairly common in empirical research. Typically, researchers simply limit the analysis to the sub-sample where the instrument is non-missing. We show that when the...

The linear IV estimator, in which the dependent variable is a linear function of a potentially endogenous regressor, is a major workhorse in empirical economics. When this regressor takes on multiple values, the linear specification restricts the marginal effects to be constant across all...

In this paper, we use a hypothetical choice methodology to robustly estimate preferences for workplace attributes. Undergraduate students are presented with sets of jobs that vary in their attributes (such as earnings and job hours flexibility) and asked to state their probabilistic choices. We...

We examine instrumental variables estimation in situations where the instrument is only observed for a sub-sample, which is fairly common in empirical research. Typically, researchers simply limit the analysis to the sub-sample where the instrument is non-missing. We show that when the...

In this paper, we use a hypothetical choice methodology to robustly estimate preferences for workplace attributes. Undergraduate students are presented with sets of jobs that vary in their attributes (such as earnings and job hours flexibility) and asked to state their probabilistic choices. We...

The linear IV estimator, in which the dependent variable is a linear function of a potentially endogenous regressor, is a major workhorse in empirical economics. When this regressor takes on multiple values, the linear specification restricts the marginal effects to be constant across all...