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Fig. 7.

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Co-evolution relations of higher order bias parameters b3 and β3 (top) and b4 and β4 (bottom) for the second-order spatial bias estimators. For b4 we indicate as a dashed line a prediction that follows from combining the Lazeyras et al. (2016) measurements of b1, b2 and b3 with Equation (30) when using β4 = 0. Strikingly, β3 and β4 are extremely close to 0 – independently of the value of b1.

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