# Basic Macroeconomics

by Mike Kimel

Recently I had the opportunity to speak to Professor David Cohen’s class on the US Presidency in the Political Science department at the University of Akron.

My talk was structured around three questions involving some extremely simple recent economic history. None of the questions were trick questions.

The questions appear below.

Question 1. From 1980 to 1992, the top marginal tax income tax rate was:
-70% in 1980
-69.125% in 1981
-50% from 1982 – 1986
-38.25% in 1987
-28% from 1988 – 1990
-31% in 1991 and 1992

Given this pattern, which of the two graphs that follows do you expect shows the growth rate in real GDP over that period?

Figure 1 Option A

Option A: A few years after the first tax cuts, there was one year of unusually strong growth. Subsequent growth slowed a lot, and continued slowing as tax rates fell further.

or…

Figure 1 Option B

Option B: The more tax rates were cut, the faster the economy grew. And then Bush I broke his “read my lips, no new taxes” promise and the economy slowed again.

Question 2.
The following is the list of eight year administrations since 1929:
-FDR (1933 – 1941)
-Truman (1945 – 1953)
-Ike (1953 – 1961)
-JFK/LBJ (1961 – 1969)
-Nixon/Ford (1969 – 1977)
-Reagan (1981 – 1989)
-Clinton (1993 – 2001)
-Bush 2 (2001 – 2009)
(FDR’s first 8 years are included, but the War years are left out. Also, Truman took over a few months into the term.)

It turns out that the degree to which each administration cut the tax burden (i.e., current tax receipts/GDP) during its first two years in office seems to strongly affect the growth rate in real GDP in the subsequent six years in office. (E.g., the amount by which Reagan cut the tax burden from 1980, Carter’s last year in office, to 1982 seems to strongly affect the annualized growth rate in real GDP from 1982 to 1988.)

Which of the following two graphs do you think best explains the relationship that was observed between the change in the tax burden in the first two years of the administration and the subsequent growth in real GDP over the remaining six years?

Figure 2 Option A

Option A: Administrations which reduced tax burdens early on enjoyed rapid growth later. Administrations which increased tax burdens early had poor growth later.

or

Figure 2 Option B

Option B: Administrations which lowered tax burdens early on suffered through poor growth later. Administrations which raised tax burdens early had strong growth later.

Question 3
Reaganomics involved cutting taxes and reducing regulation. The New Deal (for our purposes, not including World War 2 years) involved tax hikes and increased government control over the economy. Which of the following two graphs shows the growth rate in Real GDP over the Reagan and FDR years?

Figure 3 Option A.

Option A. Growth was faster under Reagan than under FDR.

Figure 3 Option B.

Option B. Growth was faster under FDR than under Reagan