Tutorials führen in betriebswirtschaftliche Konzepte ein (USA, Khan Academy 2017).

Students need to understand the conditions under which a competitive market fails to produce the socially-optimal quantity of a good or service.They also need to know what steps a government can take to correct a negative externality (USA: EconEd 2017).

Basic introduction to what microeconomics and macroeconomics study (USA, Khan Academy 2017).

This video is an introduction to externalities, including the concepts of private cost, external cost, and social cost (USA: George Mason University 2019).

Students will learn in this EconEd-lesson that the profit-maximization rules for the monopoly are the same as they are for a perfectly competitive firm but the monopoly will produce a smaller output than society would like it to produce (USA 2016-22).

Students need to understand the conditions under which a competitive market fails to produce the socially-optimal quantity of a good or service.They also need to know what steps a government can take to correct a negative externality. (USA: EconEd 2020)