http://www.bbc.com/news/business-42942921
>...It is the largest fall in percentage terms since August 2011, when markets dropped in the aftermath of "Black Monday" when Standard & Poor's downgraded its credit rating of the US.
>US investors are reacting to small but significant changes in the outlook for the American economy, and what that might mean for the cost of borrowing.
>The stock market sell-off accelerated on Friday when the US Labour Department released employment numbers which showed stronger growth in wages than was anticipated.
>If salaries rise, the expectation is that people will spend more and push inflation higher.
>To keep that under control, America's central bank will need to raise interest rates, which is what has spooked investors who were expecting the US Federal Reserve to increase rates only two or three times this year.
>They now predict there may be a few more interest rate rises on the horizon.
>Monday's sell-off was driven by firms moving to sell stocks to put more money into assets such as bonds which benefit from higher rates, says Erin Gibbs, portfolio manager for S&P Global Market Intelligence. ...