Introduction The U.S. economy remains the largest economy in the world despite the fast emerging economies such as China, Japan and India among others. These emerging economies threaten the U.S. economy with regard to losing of its competitive advantage. However, in 2010, the GDP of U.S. was estimated to be at $ 14.7 trillion. This estimate clearly positions U.S. economy at the frontline. The U.S. economy is also widely known for maintaining high output per capita that enables it to rank at sixth position worldwide. Additionally, the U.S. ranks among the top well recognized countries in trade and commerce. The supremacy of U.S. economy might be strongly drawn from its ability to maintain stable gross domestic product, high levels of research, maintenance of low unemployment levels and high levels of capital investments at the national and international level. To understand the economy of U.S. more clearly it will be somewhat prudent to subdivide the economy into subsections for easy comprehension of the economical units. This will further enable one to appreciate the economy in general and more significantly to conquer with suggestions provided to improve the economy as well as coming up with personal opinion. Income and wealth The report released in the beginning of 2008 indicated that the pretax median household income was at the average $50,000 for the year 2007. The median household income ranged from one region to another. For instance, in Maryland it was at $68,000 while for Mississippi was at $36,000. There was an increase of income from 2006 to year 2007 for employees who worked full time. Similar increase was also notable in women. The rising economy was mostly credited to the increasing income from the taxpayers. However, the number of employment dropped significantly in the year 2008 after the nation faced economic crisis. Retailing This is the major sector of the U.S. economy. The common retailing enterprises in the U.S. include Montgomery, Target, Burger King and Wal-Mart (Landefeld 40). These firms are mostly concerned with producing consumer goods. These firms frequently raise prices of their products due to the ever-increasing energy and labor costs. This consequently affects the economy and sometimes the government is forced to intervene the operations of such businesses to safeguard consumers. Agriculture The large fertile land and technologically improved methods of crops cultivation have enabled the U.S. economy to produce about a half of the total grains consumed worldwide. The products produced are corn, wheat, cotton, fruits, dairy products, fish, vegetables and poultry among others. Additionally, U.S. is among the few countries that enjoys subsidies from the government especially in the agricultural sector. This has consequently resulted to more production of agricultural products (Landefeld and Barbara 163). Finance The U.S. posses a number of great stock markets in the world. New York stock Exchange is the largest stock exchange with a capitalization of US$10.1 trillion for the companies listed over there. Another great stock exchange known as NASDAQ is third in the world after Japan’s Tokyo Stock Exchange though it is reported to have a higher trade volume per hour as compared to JTSE. About 3,800 companies have listed their shares with NASDAQ stock