Complex sentence: Kelso elaborated on his proposals in "The New Capitalists" in 1961; before teaming up with political scientist Patricia Hetter Kelso to further explain how capital instruments provide an increasing percentage of the wealth and why capital is narrowly owned in the modern industrial economy.
Split into simpler sentences: Kelso elaborated on his proposals in "The New Capitalists" in 1961. He worked with political scientist Patricia Hetter Kelso to further explain how capital instruments provide an increasing percentage of the wealth and why capital is narrowly owned in the modern industrial economy.