Which of the following statements accurately describe the implications of positive externalities in market equilibrium? Select all that apply.

Positive externalities occur when a product or service benefits people who are not directly involved in the action, like when someone gets vaccinated and helps protect others from disease. In a market equilibrium without considering these externalities, the benefits to society are not fully reflected in the price of the good or service. This means that the market might produce less of the good than is socially optimal, leading to a situation where fewer people benefit from the positive effects. For example, if a company builds a park, the park benefits the community, but the company may not receive enough financial return to justify building it. Therefore, recognizing positive externalities can lead to better decisions, like government support or incentives, to encourage more of these beneficial activities.