Instrumental variables estimators resolve simultaneity bias by isolating exogenous variation correlated with the regressor

The claim states a fundamental econometric definition and function of instrumental variables (IV) estimators: solving simultaneity bias and endogeneity by exploiting exogenous variation. Papers [1], [6], and [7] all explicitly employ instrumental variable techniques for this exact purpose (addressing endogeneity and reverse causality in observational data). The claim is specific, well-established in econometrics, and directly supported by the methodology and use cases in the retrieved literature.