Before revision:  In practice  however, some agents may not prescribe to the dominant behavioral model or may act in ways that are arbitrarily inconsistent . Existing algorithms heavily depend on the  model being (approximately) accurate for all agents and have poor performance in the presence of even a few such arbitrarily irrational agents.
After revision:  In practice however, some agents may not prescribe to the dominant behavioral model or may act in ways that are seemingly arbitrarily irrational . Existing algorithms heavily depend on the model being (approximately) accurate for all agents and have poor performance in the presence of even a few such arbitrarily irrational agents.