When there is a positive externality, a. the private benefit received by consumers is greater than the external benefit. b. the social benefit received by consumers is greater than the private benefit. c. the private benefit received by consumers is greater than the social benefit. d. the private benefit received by consumers is greater than the private cost.

The correct answer is the letter b. the social benefit received by consumers is greater than the private benefit.

Explanation:

Externality occurs when the activity performed by one agent affects another agent, not reflecting on prices, and may be negative or positive. Positive externalities concern the benefits to a given agent caused by the influence of another agent's action. Thus, as there is a positive external benefit, the social benefit is greater than the private social benefit, generating less than the socially desirable amount produced.

political parties perform an important task in government. they bring people together to achieve control of the government, develop policies favorable to their interests or the groups that support them, and organize and persuade voters to elect their candidates to office.

explanation:

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.