A sharp increase in cash positions held by investors is taken as: a bullish indicator for future performance a bearish indicator for future performance a predictor of increased market volatility a predictor of more stable markets a rational response to Federal Reserve rate changes A major difference between the Momentum effect and the Mean Reversion effect is: Momentum appears over the long term, and Mean Reversion over the short term Momentum is a Bear market phenomenon, while Mean Reversion appears in Bull Markets Mean Reversion is much easier to predict that Momentum Mean Reversion favors Hot Stocks; Momentum strategies favor Value Stocks returning to favor Momentum effects diminish as the time horizon the investment increases