21. This way, an admissible heuristic can ensure optimality . 22. However, different optimality criteria can select different hypotheses. 23. Pareto-optimality of equilibria generally does not hold. 24. The Syllable in Optimality Theory, Cambridge University Press . 271-303. 25. To construct an optimality model, the behavior must first be clearly defined. 26. Optimality theory also has roots in neural network research.27. Vilfredo Pareto used an edgeworth box contact line to illustrate a similar social optimality . 28. In addition, Stevens showed some optimality characteristics and discussed decentralized decision-making. 29. The smaller the single share of a member is the less is the optimality . 30. Genetic factors that may limit the attainment of optimality include mutations and genetic linkage.