Paul A. Baran 
Monopoly Capital [EPUB ebook] 

This landmark text by Paul Baran and Paul Sweezy is a classic of
twentieth-century radical thought, a hugely influential book that
continues to shape our understanding of modern capitalism. “This book…
deals with a vital area of economics, has a unique approach, is
stimulating and well written. It represents the first serious attempt to
extend Marx’s model of competitive capitalism to the new conditions of
monopoly capitalism.” — Howard J. Sherman, American Economic Review