The tendency of persistent time series (0.50<H<1.00) to have abrupt, and discontinuous changes. The normal distribution assumes continuous changes in a system. However, a time series which exhibits Hurst statistics may abruptly change levels, skipping values either up or down. Mandelbrot coined the term "Noah effect" after the biblical story of the deluge. Bloomberg Financial Dictionary
See: Joseph effect, Hurst exponent, persistence , anti-persistence. Bloomberg Financial Dictionary
Financial and business terms. 2012.