Is the world economy dependent on the American economy?
The United States of America are the most powerful country in the world. In all the ways. One of this way is even their economy. In this meaning it is natural that the economy of entire world depends from the american economy. I can give an example about this thought. This is a fact and not a supposition. The financial crisis of 2007–08. According to Wikipedia:
The bursting of the U.S. (United States) housing bubble, which peaked in 2004, caused the values of securities tied to U.S. real estate pricing to plummet, damaging financial institutions globally.
The financial crisis of 2007–08, also known as the Global Financial Crisis and 2008 financial crisis, is considered by many economists to have been the worst financial crisis since the Great Depression of the 1930s. It threatened the collapse of large financial institutions, which was prevented by the bailout of banks by national governments, but stock markets still dropped worldwide. In many areas, the housing market also suffered, resulting in evictions, foreclosures and prolonged unemployment. The crisis played a significant role in the failure of key businesses, declines in consumer wealth estimated in trillions of U.S. dollars, and a downturn in economic activity leading to the 2008–2012 global recession and contributing to the European sovereign-debt crisis. The active phase of the crisis, which manifested as a liquidity crisis, can be dated from August 9, 2007, when BNP Paribas terminated withdrawals from three hedge funds citing "a complete evaporation of liquidity".