This site was created out of growing concern with the usage of less-than-fully rigorous mathematical and statistical methodologies in the financial/investment world. One example is the increasing prevalence of backtest overfitting, due in part to the ease of generating large numbers of model variations using modern computer technology. Very few peer-reviewed research papers or commercial products disclose the number of computer trials used in development, so it follows that many published and marketed strategies are statistically bogus. Indeed, such statistical errors are the primary reason that investment funds and strategies, designed for optimal performance based on historical market data, often

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