Why would some villages give up their autonomy to form chiefdoms?

Why would some villages give up their autonomy to form chiefdoms? Use your additional readings to compare and contrast two distinct scholarly positions on the emergence of chiefdoms from autonomous village societies. Keep in mind differing definitions of chiefdoms, as well as the relative importance of different prime movers and/or other causative factors. Which model for the evolution of chiefdoms do you find the most compelling? Use and cite specific archaeological or ethnographic examples and authors to support your arguments.

YOU MUST USE AT LEAST TWO SOURCES FROM MY ADDITIONAL FILES AND ONE OR MORE SOURCES FROM INTERNET OR OTHER BOOK!!!!!