For a long time now, the U.S. economy and the economies of the advanced capitalist world as a whole have been experiencing a slowdown in economic growth relative to the quarter-century following the Second World War. It is true that there have been cyclical upswings and long expansions that have been touted as full-fledged "economic booms" in this period, but the slowdown in the rate of growth of the economy has continued over the decades. Grasping this fact is crucial if one is to understand the continual economic restructuring over the last three decades, the rapidly worsening conditions in much of the underdeveloped world to which the crisis has been exported, and the larger significance of the present cyclical downturn of world capitalism.