Econometric Methods for Fractional Response Variables with an Application to 401(k) Plan Participation Rates
Leslie E. Papke, Jeffrey M. Wooldridge
NBER Technical Working Paper No. 147
We offer simple quasi-likelihood methods for estimating regression models with a fractional dependent variable and for performing asymptotically valid inference. Compared with log-odds type procedures, there is no difficulty in recovering the regression function for the fractional variable, and there is no need to use ad hoc transformations to handle data at the extreme values of zero and one. We also offer some new, simple specification tests by nesting the logit or probit function in a more general functional form. We apply these methods to a data set of employee participation rates in 401(k) pension plans.
Published: Journal of Applied Econometrics, vol.11, pp. 619-632 (1996)
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