It's only to be expected.
Since World War II, Democrats have seen
job creation average 1.7 % per year when in office, versus 1.0 % under the GOP. US GDP has averaged a rate of growth of 4.23 percent per annum during Democratic administrations, versus 2.36 per cent under Republicans, a remarkable difference of 1.87 percentage points. This is postwar data, covering 19 presidential terms—from Truman through Biden. If one goes back further, to the Great Depression, to include Herbert Hoover and Franklin Roosevelt, the difference in growth rates is even larger.
The results are similar regardless whether one assigns responsibility for the first quarter of a president’s term to him or to his predecessor. Relatedly, the average Democratic presidential term has been in recession for 1 of its 16 quarters, whereas the average for the Republican terms has been 5 quarters, a startlingly big difference.
- Reasons to be skeptical
Even those of us who believe that Democrats may have pursued better policies than Republicans, overall, have a hard time explaining the big observed gap in performance. After all, many other powerful and unpredictable factors impact the economy, often dwarfing the effect of any policy levers that the president can control.
Furthermore, many policies, good or bad, have their main effects only over a time span longer than a presidential cycle. For example, Jimmy Carter deserves credit for appointing Paul Volcker as Chairman of the Fed in 1979 with a mandate to defeat inflation at all costs. The subsequent disinflation was ultimately successful, helping to set the stage for the Great Moderation of the next 20 years. But its immediate impact in 1980 was a recession. Most economists consider the Volcker monetary contraction to have been worth the price. But the downturn contributed to Carter’s failure to win re-election in November of that year. Ironically, that is the one and only recession in the last
70 years that took place with a Democrat in the White House.
- Is it just chance?