Analysis of information sources in references of the Wikipedia article "Anna Karenina principle" in English language version.
By studying the dynamics of correlation and variance in many systems facing external, or environmental, factors, we can typically, even before obvious symptoms of crisis appear, predict when one might occur, as correlation between individuals increases, and, at the same time, variance (and volatility) goes up. [...] All well-adapted systems are alike, all non-adapted systems experience maladaptation in their own way. [...] In the chaos of maladaptation, there is an order. It seems, paradoxically, that as systems become more different they actually become more correlated within limits.
By studying the dynamics of correlation and variance in many systems facing external, or environmental, factors, we can typically, even before obvious symptoms of crisis appear, predict when one might occur, as correlation between individuals increases, and, at the same time, variance (and volatility) goes up. [...] All well-adapted systems are alike, all non-adapted systems experience maladaptation in their own way. [...] In the chaos of maladaptation, there is an order. It seems, paradoxically, that as systems become more different they actually become more correlated within limits.
