White House Economic Adviser Hassett estimates productivity growth right now at 2.5%; base case on GDP growth, should be around 4%

Growth estimates issued by a White House economic adviser carry a well-documented optimism bias relative to independent forecasters such as the CBO, the Fed staff and the consensus survey, and historically serve a policy-marketing function as much as an analytical one, particularly where they are used to argue that an administration's agenda lifts supply rather than just demand. The pairing here is instructive: a productivity claim is a supply-side, longer-run argument, and when it accompanies a near-term GDP base case it is typically being deployed to suggest growth can run above trend without inflationary consequences. That framing matters for rates because potential output estimates feed directly into assessments of neutral rates and the output gap, and a supply-side story is the standard argument against the need for restrictive policy. The distinction worth holding is between realised productivity data, which are subject to substantial revision and cyclical contamination, and a sitting adviser's estimate, which is a forecast wearing data's clothing. Follow-ons are whether OMB or official budget projections adopt a similar supply-side assumption, and whether Fed officials engage with or implicitly push back on the estimate in testimony. As commentary rather than a release, the market signal is in what it reveals about the administration's economic narrative ahead of budget and policy action.