Answer the following questions based on this article: https://www.theatlantic.com/politics/archive/2016/01/the-great-immigration-data-debate/424230/
a) What was David Card’s findings in regard to the affects of the Mariel boat lift?
b) How did Giovanni Peri interpret the economic impact of the boat lift?
c) How does Frum try to refute Peri’s hypothesis?
d) How have scholars critiqued Borjas’s findings?
e) According to Frum, what is a fundamental statistical problem in Borjas and Card?