Discuss the link between polygamy and the dawn of agriculture

According to Mark Dyble, the dawn of agriculture increased the practice of polygamy.

Before the dawn of agriculture, the hunter-gatherer community was an egalitarian society where men and women have equal rights and say on how the group will act and where they will go. 

When the dawn of agriculture came, men wanted to possess more or acquire more. He wanted to have more wives and more children to help him tend to his lands. He wanted to become superior over women. Thus, equality between sexes was gone.