Before revision:  We derive the conditions under which cooperation can emerge and verify our analytical predictions by agent-based computer simulation. In general, our evolutionary model provides stronger evidence than Mark's original model with respect to how status behavior can facilitate the emergence of social cooperation .
After revision:  We derive the conditions under which cooperation can emerge and verify our analytical predictions by agent-based computer simulations. In so doing, not only does our model elaborate on its predecessor and support Mark's original model with respect to how status behavior can facilitate the emergence of social cooperation .