To finance deficits, the government must sell bonds to investors, competing for capital that could otherwise be used to invest in stocks or corporate bonds. Government borrowings raise long-term interest rates, stifling economic growth.
Higher productivity enables companies to increase sales without adding workers. Even if job markets tighten and wages rise, corporate profits can continue to climb as long as worker productivity is growing faster than overall wages.
Rising interest rates are considered bad for stocks because they raise the cost of doing business and depress corporate earnings and because higher yields make bonds relatively more attractive than stocks to investors.
Although not well known outside Wall Street, Freddie Mac and its corporate cousin, Fannie Mae, are two of the world's largest financial institutions and play a crucial role in the housing market.
Stocks in the United States plunged in 2002 amid fears of war and terrorism, a weak economy, rising oil prices and dozens of corporate scandals. It was the third consecutive annual decline, the first time that has happened in 60 years.