Power And Humanity
No other economy comes even close to the economic power of United States of America. After America, china is the second largest which is just the half of it figures in proportion. In fact the GDP of the states of America is in compare to other countries. The United States of America has the highest standard of living with GDP per capita much higher than another nation. For over seventy percent of the production is for personal consumption and one of the key rule is the supply should be equal to demand. Thus to make the supply and demand match they change the price.