Resolves NA if Kamala Harris doesn't win the election.
How I plan to check growth rates
In 2029 we'll Google the U.S. real GDP growth rate (which is inflated-adjusted). If the compounded growth rate was >3% (for the 4 years from 2025 to 2028), then I will resolve YES. If it was clearly <3%, then I resolve NO.
If it's not obvious from a cursory Google search, then we could go to FRED and manually calculate the compounded growth rate. I would show the steps used and remove all doubt.
Note that simply averaging the yearly growth rates can be misleading. For example: a decline of -5% followed by +5% growth results in a compounded decline of -0.25%. But if you took the simple average from the "-5%" and the "+5%", then you get +/0%, or no average change. The difference is usually tiny for GDP growth. But we'll use the compounded rate, because it's more relevant.
The resolution date can be extended if finalized GDP figures aren't available yet.
A related market by @DismalScientist for comparison:
https://manifold.markets/DismalScientist/if-donald-trump-wins-the-2024-presi-9a351932029e