219533document79506Pettifor et al (2017) Modelling social influence and cultural variation ....pdfapplication/pdf58cdda8145c55bc53bf5af08aa05d52aMD512270052017-10-13 09:13:26https://pure.iiasa.ac.at/id/eprint/14881/1/Pettifor%20et%20al%20%282017%29%20Modelling%20social%20influence%20and%20cultural%20variation%20....pdf