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Appendix A: The Wilson-Patterson Attitude Index.

Appendix B: Major Life Events Questionnaire and response rates.

Appendix C: Comparison of the relationships between divorced and marital separation and economic attitudes.

Appendix D: Univariate genetic and environmental variance decomposition of economic attitudes.

Appendix E: Test for active gene-environment correlation between attitudes and life events using a co-twin control design.

Appendix F: Path diagram of one twin in GxE model that allows for gene–environment correlation (rGE).

Appendix G: Model fitting results for each GxE model.

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