The mainstream media rounds up the usual suspects when trying to explain the latest stumble from the stock market. One expert had this to say:
Many factors have conspired to increase market volatility and push stocks lower over the last several weeks. Chief among them have been nervousness over the timing of Federal Reserve (Fed) interest rate increases, worries over the outlook for the Chinese and eurozone economies, the escalating Ebola epidemic in Africa, and rising geopolitical instability—particularly in the Middle East.
Others add the collapse in oil prices or commodities in general, global warming or just plain irrational fear. Technical analysts will cite the S&P 500 falling below the 200 day moving average or another favorite indicator, but that doesn’t explain why it fell through the glass barrier. Most of these are merely examples of the post hoc fallacy in which people notice that one event followed another and concluded that the earlier event must be the cause of the later one. An obvious example is attributing the rising of the sun to the crowing of a rooster.