Economists who estimate demand or supply systems are often faced with the issue of whether to estimate with shares or … suggest that shares and quantities are rejected in favor of an alternative functional form. Netputs ; robust estimation …

demand estimation techniques. Although we find that error in market shares generally undermine the standard point …In this paper we introduce a new approach to estimating a differentiated product demand system that allows for error in … identification of discrete choice models of demand, we exploit shape restrictions on demand implied by discrete choice to generate a …