Economics Question:

1. Is the externality concept under the Rational Choice Economics?
2. Can the viewpoints arrived from Rational Choice Economics and Behavioural Economics are the same? E.g [Rational Choice Economics] People wont be likely to receive COVID19 vaccination because they value personal benefit > social benefit (positive externalities and market failure, and they prefer minimise loss (side effects of vaccine) over maximising benefits (expected utility theory). [Behavioural economics] --> availability heuristics (fear of complications), immediate versus delayed gratification, status quo bias.

Thanks