Analysis: Markets and the Economy Boom Under Democratic Presidents. But Why?

An interesting report caught my eye this past week regarding the economy and markets under Democratic versus Republican presidents. One would intuitively think that under the latter, economic growth and financial market performance would be orders of magnitude higher versus under the former.

After all, Republicans are always thought to be more pro-capitalist, espouse less government interference, argue for supply-side, trickle-down economic infrastructures, and are the chief spokespersons for lower overall taxes.

Take a look at the interesting charts below, generated by the Federal Reserve Economic Data (FRED) statistical database and the St. Louis Federal Reserve.

The first shows the average annual real GDP growth rate in the United States under Democratic and Republican presidents going back to 1947 and running up through the second quarter of 2020. On average the economy grew annually one full percentage point higher under Democrats than under Republicans.

The analysis also considered the fact that the last two major economic crises, the global financial crisis of 2008 and the COVID-19 crisis of 2020, both occurred under a Republican president. Hence, re-running this analysis only through 2006, I highlight their results on the right side of the above chart. The same result occurs though, with the economic growth variance even larger, approximately 1.2% annually under Democrats versus Republicans.

Now, to the more pertinent results. How did the comparative equity markets look spanning these two time periods? See below. I shown below the annualized S&P 500 total return adjusted for inflation.

As seen, the stock market performance is significantly higher under a Democratic president watch than under a Republican president in office. The results show a meaningful variance of +520 basis points annually from 1947-2000. From 1947-2006, the results show a difference of +430 basis points annually.

The reason for all of the above could very well be a story all its own. There are probably no shortages of justifications by analysts for the shocking results shown here. Indeed, fiscal and monetary policy actions seem to be a bit more pro-growth when a Republican is president, as one would expect.

Blinder & Watson (2016) did some analysis on all of this and found oil and war to be two credible factors. The two economists found that oil prices were generally well-behaved during the Democratic presidencies of Truman, Kennedy and Johnson. Alternatively, they note that rising energy prices may have held back the economy during the mid-1970s, early 1990s and mid-2000s. These were periods when Republicans held the White House.

Furthermore, they come to the conclusion that wartime mobilization during the Truman and Johnson Democratic presidencies could have been a GDP booster. They cite that military drawdowns at the time Republicans Eisenhower and Nixon were in office may have been GDP growth detractors.

Regardless of the analytical interpretations, the numbers are what they are. Over the past many years, the economy and equity markets have done notably better under a Democratic White House than they have under a Republican White House. Just something for investors to keep in mind as they head to the polls this November.

Gary has more than 30 years of industry experience, which includes research analysis and portfolio management for both retail and institutional accounts. He worked as a Senior Vice President at Wells Fargo Advisors and Wells Fargo Investment Institute for approximately 14 years in total, where he was a senior portfolio manager for both equity and asset allocation portfolios. He was also involved in investment manager due diligence and selection for the firm’s multi-manager portfolio models. Prior to joining Wells Fargo, Gary held senior-level investment management positions with several registered investment advisory organizations. He has been a Chartered Financial Analyst (CFA®) charter-holder since 1989. The CFA is a professional credential earned by investment management professionals after successfully passing three years of rigorous examinations and recording several years as a practising professional within the industry. Gary received his Bachelor of Science in Engineering from Purdue University and his M.B.A. in Finance from The University of Missouri. Additionally, Gary holds his FINRA SIE, Series 7 and Series 66 securities registrations as well as his Missouri Life Accident & Health insurance license. He is a member of the CFA Society of St. Louis and the Financial Executives Networking Group. He resides in Kirkwood, MO with his wife Kathy, and they have three adult age children, Aly, Ryan and Josh.