What is monetary approach in Neoclassical Economic Theory? How is poverty defined under the monetary approach? What are the two main reasons that cause poverty under Neoclassical Economic Theory? Briefly describe each one. What are the two causes of immigrant poverty identified by Raphael and Smolensky (2009)? What is displacement argument? Did Johnson and Mason's, (2012)substantiate Raphael and Smolensky's two causes of poverty.