Income is an important correlate for numerous phenomena in the social sciences. But manysurveys collect data with just … a single question covering all forms of income. This raisesissues of quality, and these are heightened when individuals … are asked about the householdtotal rather than own income alone. Data are typically banded, implying a loss of information …

estimation of earnings frontiers: the censoring of the income data, by multiple imputation. Then, we estimate individual … potential income with stochastic earnings frontiers, and we measure overeducation as the ratio between actual income and … potential income. It is shown that the measurement of overeducation by this income ratio is a valuable addition to the …