EAN: 9781108792899

Bilder-Quelle: Fashion24.de - Accessoires

Successful investment strategies are specific implementations of general theories. An investment strategy that lacks a theoretical justification is likely to be false. Hence an asset manager should concentrate her efforts on developing a theory rather than on backtesting potential trading rules. The purpose of this Element is to introduce machine learning (ML) tools that can help asset managers discover economic and financial theories. ML is not a black box and it does not necessarily overfit. ML tools complement rather than replace the classical statistical methods. Some of ML's strengths include (1) a focus on out-of-sample predictability over variance adjudication (2) the use of computational methods to avoid relying on (potentially unrealistic) assumptions (3) the ability to learn? complex specifications including nonlinear hierarchical and noncontinuous interaction effects in a high-dimensional space and (4) the ability to disentangle the variable search from the specification search robust to multicollinearity and other substitution effects.

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25.05.2026 um 17:02 Uhr

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