> positive externalities I really don't think you meant to use the word externality here. And the other replies so far are not about positive externalities. P

> positive externalities I really don't think you meant to use the word externality here. And the other replies so far are not about positive externalities. Perhaps roads are an indirect positive externality - roads are useful for bikes and buses, also useful for demarcation between properties or areas and addressing!!! https://www.investopedia.com/terms/e/externality.asp https://www.investopedia.com/terms/e/externality.asp