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The estimation of the regression parameters for the ill-conditioned logistic regression model is considered in this paper. We proposed five ridge regression (RR) estimators, namely, unrestricted RR, restricted ridge regression, preliminary test RR, shrinkage ridge regression and positive rule RR...
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(Originally published in Journal of Mathematical Economics (1994) 23(5): 435-450) - This paper proposes a method of establishing the global univalence of a mapping without the assumption of continuity and the absence of points of inflection. When the functions are not continuous and the points...
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in most known criteria. We provide dominance criteria which allow for some indeterminacy about the average optimal family … size, by resorting to the bounded approach to dominance analysis proposed by Fleurbaey et al. (2003). Indeed, when … the household to the individualistic point of view can substantially alter the outlook of dominance results. …
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We analyze the role of leadership in a multi-sided market as search advertising, assuming quantity competition and different entry conditions (with barriers to entry or endogenous entry). The model can be microfounded taking into account network effects, multi-homing on the advertising side and...
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