When do Probit residuals sum to zero?
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Citation:Conniffe, Denis. 'When do Probit residuals sum to zero?'. - Economic & Social Review, Vol. 41, No. 1, Spring, 2010, pp. 77?85, Dublin: Economic & Social Research Institute
Probit residuals need not sum to zero in general. However, if explanatory variables are qualitative the sum can be shown to be zero for many models. Indeed this remains true for binary dependent variable models other than Probit and Logit. Even if some explanatory variables are quantitative, residuals can sum to almost zero more often than might at first seem plausible.
Publisher:Economic & Social Research Institute
Description:Paper delivered at the Twenty-Third Annual Conference of the Irish Economic Association, Blarney, Co Cork, April 24-26, 2009