I. When the sum of the residuals is greater than zero, the data set is nonlinear. II. A random pattern of residuals supports a linear model. III. A random pattern of residuals supports a non-linear model.
bull market definition. A market, especially a stock market, characterized by rising prices; the opposite of a bear market. We can always go back to worrying; we are still in a bull market for fear.
How Long Does the Average Bull Market Rally Last? As of today, the bull market which began in March of 2009 is 1,422 calendar days old. Over that whole period there have been nine drawdowns of greater than 5% which segment the bull market into ten periods of bull market rally.