The forecasted Gross Domestic Expenditure on R&D in the US, expressed as a percentage of GDP, rises from 3.18% in 2024 to 3.31% by 2028. Year-on-year increases suggest a consistent growth pattern averaging a 0.25% increase per year. This indicates a stable commitment to R&D investment, aligning with trends observed up to 2023. Such continuity emphasizes the US's dedication to innovation and technological advancement as vital economic growth components.

Looking forward, key trends to monitor include:

Emerging technologies' impact on the R&D spending scale.
Policy shifts that might influence investment flows, particularly in tech and green sectors.
The global competitive landscape affecting US R&D spending trends.