This is a useful academic introduction: https://www.amazon.com/Oligarchy-Jeffrey-Winters/dp/0521182980/ https://www.amazon.com/Oligarchy-Jeffrey-Winters/dp/052

This is a useful academic introduction: https://www.amazon.com/Oligarchy-Jeffrey-Winters/dp/0521182980/ https://www.amazon.com/Oligarchy-Jeffrey-Winters/dp/05211829...