“…Kojić and Lukač (2018) suggest an alternative approach to solving cost minimization problem with Cobb-Douglas technology based on weighted arithmetic-geometric mean inequality without using calculus. The two papers in this issue propose new approaches for using optimization algorithms and clustering in the domain of policy; Marošević and Soldo (2018) suggest a modification for calculating indices of political power within a parliament, while Jelić and Ševerdija (2017) provide a model inspired by the team formation problem in a social network that suggests a subset of candidates for positions in the new government using integer linear programming.…”