The U.S. economy is immense.The next section explains the role money and financial markets play in the economy.The role of government in the U.S. economy is the subject of section seven.The relationship between the U.S. economy and the world economy is discussed in section eight.In a market economy, government plays a limited role in economic decision making.U.S. economy over the past few decades has been in the computer industry.International change affects production patterns, wages, and jobs in the U.S. economy.There have been several examples of such events in the U.S. economy in the 1990s.In 1996 there were over $556.3 billion worth of mergers and acquisitions in the U.S. economy.It has the primary responsibility to keep the right amount of money circulating in the economy.