Immanuel Wallerstein (1930-2019) was a radical sociologist and economic historian who pioneered world-systems analysis. Although he analyzed what he called the capitalist world-economy over its centuries-long development, he remained a staunch, and globally influential, critic of capitalism.
Immanuel Wallerstein, World-Systems Analysis: An Introduction Duke University Press, 2004
Immanuel Wallerstein, The Essential Wallerstein The New Press, 2000