0524 GMT - The long end of the U.S. Treasury curve is being driven by more than just Federal Reserve policy expectations, BondBloxx Investment Management's JoAnne Bianco says in a note. "While the markets have adjusted to the possibility of policy rates staying higher for longer, long-dated U.S. Treasury yields increasingly reflect a higher term premium as investors demand additional compensation for fiscal uncertainty, elevated government borrowing needs, inflation risks and duration exposure, the senior investment strategist says. "Accelerating economic growth has reinforced this dynamic," she adds.