In this paper, we propose the concepts of substitutability and complementarity in discrete choice models. These concepts concern whether the choice probability of one alternative in a choice model increases or decreases with the utility of another alternative, and they play important roles in...

In his paper ‘‘Looking Back, Looking Ahead: Biased Technological Change, Substitution and the Wage Gap'' Theo van de Klundert employs a two-goods, two-factors general equilibrium model, applying the powerful "hat calculus technique" introduced by Meade (1961), to study the determinants of...