From the homepage of the Bureau of Economic Analysis

(www.bea.gov) obtain quarterly data for U.S. real GDP from four recessions: 1981–1982, 1990–1991, 2001, and 2007–2009. (LO1)

a. How many quarters of negative real GDP growth occurred in each recession?

b. Which, if any, of the recessions satisfied the informal criterion that a recession must have two consecutive quarters of negative GDP growth?