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    Article

    Specification tests for the sample selection and two-part models

    We conduct Monte Carlo analysis to compare specification tests in choosing between the sample selection and two-part models for corner solutions when errors are correlated but there are no identifying instrume...

    Edward C. Norton, William H. Dow in Health Services and Outcomes Research Meth… (2008)

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    Propensity score and difference-in-difference methods: a study of second-generation antidepressant use in patients with bipolar disorder

    This article compared standard regression (logistic), propensity score weighting, propensity score matching, and difference-in-difference (DID) methods in determining the impact of second-generation antidepres...

    Alex Z. Fu, William H. Dow, Gordon G. Liu in Health Services and Outcomes Research Meth… (2007)

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    Article

    Choosing Between and Interpreting the Heckit and Two-Part Models for Corner Solutions

    This article addresses certain poor practices commonly seen in the applied health economics literature regarding the use of the Heckit and the two-part model. First, many articles invoke the Heckit to solve a ...

    William H. Dow, Edward C. Norton in Health Services and Outcomes Research Methodology (2003)