Recall Application 1, "The Black Death and the Living Standards

Recall Application 1, "The Black Death and the Living Standards in Old England," to answer the following questions:
-According to the application, which economist made the observation all the way back in the 19th century that maladies such as plagues would cause a temporary increase in living standard?

A) David Ricardo
B) Adam Smith
C) John Maynard Keynes
D) Thomas Robert Malthus