The major sectors of the US economy are much influenced by______. [originaltext]

Many economists say US growth will speed up a bit over the next year, which will likely make it easier for other nations to sell their products in the world’s biggest economy. Some shops are busier, because for the first time in five years, the United States and other wealthy nations are shaking off the recession and making a larger contribution to global growth.(9)Key sectors of the US economy, like housing, are strongly influenced by interest rates. Lower rates make it easier for families to borrow the money to buy homes and businesses to get the equipment they need to expand.(10)With that in mind, the US Central Bank has been working hard to stimulate the economy by cutting interest rates. Part of that effort involves buying tens of billions of dollars of securities each month, a program that is being reduced or "tapered".