It's natural to worry when the Standard & Poor's the (S&P) 500-stock index experiences its worst three-day loss since 2011 and the Dow Jones Industrial average hits a six-month low. But your job is likely to be safer than your portfolio. Economists surveyed by Bloomberg are still looking for the US economy to grow at a healthy 3% pace in the last three months of 2014 and at the same clip in 2015. There's a simple reason for that, as the author's Bloomberg News colleagues, Rich Miller and Simon Kennedy, wrote on Oct 13. Foreign sales last year accounted for 46% of the revenue of companies in the S&P 500, leaving them highly exposed to troubles abroad. The overall US economy is far less dependent than the S&P 500 companies on what happens abroad. Most of what Americans produce is sold to other Americans; exports account for just under 14% of US gross domestic product