TY - DATA T1 - LiBiT algorithm to solve static pricing problems under mixed multinomial logit demand PY - 2020/08/24 AU - Ahmadreza Marandi AU - Virginie Lurkin UR - https://data.4tu.nl/articles/dataset/LiBiT_algorithm_to_solve_static_pricing_problems_under_mixed_multinomial_logit_demand/12852824/1 DO - 10.4121/12852824.v1 KW - static multi-product pricing KW - mixed logit model KW - nonlinear optimization model KW - Branching Methods KW - convex optimization KW - Convex Relaxation N2 - Price differentiation is a common strategy for many operators. We study a static multiproduct price optimization problem with demand given by a continuous mixed multinomial logit model. To solve this new problem, we design an efficient iterative optimization algorithm that asymptotically converges to the optimal solution. To this end, a linear optimization (LO) problem is formulated, based on the trust-region approach, to find a "good" feasible solution and approximate the problem from below. Another LO problem is designed using piecewise linear relaxations to approximate the optimization problem from above. Then, we develop a new branching method to tighten the optimality gap. ER -