There are two pieces of Wall Street lore about market performance around presidential elections that have passed their sell-by date but which continue to float around. They are:

–the last year of a presidential terms is a good one for stocks; the first year of the new term is a bad one.

The idea behind this is that the incumbent president would successfully pressure the Federal Reserve into a looser-than-necessary money policy in the runup to the election. This would give an artificial boost to the domestic economy, enhancing his reelection prospects. This extra stimulus would be reversed after the election, slowing the economy down in the first months of the new term. Gerald Ford’s refusal to follow this custom is often cited as the reason he lost the 1976 election to Jimmy Carter.

With the exception of Donald Trump, who has continually pressured the Fed to loosen money policy throughout his term, this no longer happens. I’m not 100% sure why. My leading candidates: the world is a much more complex and mutually integrated place than it was a generation ago, so it’s not so easy to use the domestic money supply to give the economy a pre-election jolt; over the past quarter-century there have been a succession of crises, from Y2K/Internet bubble to 9/11, to the Great Recession, to Trump’s wrongheaded tariff wars, to his coronavirus bungling, that have dwarfed any monetary tweaking the Fed might contemplate .

In any event, there’s no reason to believe that the world economy will be weaker in 2021 than it is now or that a post-election tightening in money policy is on the cards.

–Republicans are good for stocks, Democrats are not.

The idea here, from a generation ago as well, is capital vs. labor. A high-level Republican goal is to protect the accumulated wealth of its country club backers. This means having low taxes and low inflation. The Democrats, on the other hand, represent workers whose chief asset is their labor. Their main economic goal is to obtain real wage/benefit gains. The inflation that results doesn’t hurt them because they have no wealth to begin with. And it makes them better off by eroding the real value of the goods and services they need to buy from Republicans.

Again, the class warfare that defined the old Democrat/Republican battle lines is mostly gone. As a former work colleague of mine was already writing thirty years ago, neither party has a relevant economic program for today’s world. Ironically, despite its business roots, the current Republican administration is supported mainly, I think, by workers disenfranchised through the demise of heavy industry in the US (and ignored in a worst-in-the-world fashion by both parties). And the head of the party is a stunningly inept businessman who continues to do enormous economic damage to the country.

A more reasonable worry about the election might be that a Democratic administration would partially reverse the corporate income tax cuts of 2018. That might lead to after-tax results from the S&P 500 next year being, say, 3% lower than expected. 3% is not a big number, though. And there might be positive effects on growth from reopening the borders, a more intelligent approach to the potential threat from China than shoot-yourself-in-the-foot tariffs, removal of some of the white racist tarnish of the American brand abroad…