Ans Externalities are the effects of a project on other parts of the firm or the environment (Ehrhardt & Brigham, 2020, p. 455). Select one of the externalities discussed in pages 435-436 of the textbook and explain how a firm of your choice used it. Provide an example of a good externality that is, one that increases a projects true NVP over what it would be first if just its own cash flows were considered.