Speaking at the G30 40th annual International Banking Seminar, Mr Bailey linked a decline in potential growth to lower productivity, an ageing population, and post-Brexit trade restrictions.
He noted that while the immediate impact is negative, the economy is expected to adjust and rebalance in the longer term, citing Adam Smith's growth model.
Mr Bailey suggested that investment in innovation and new technologies, particularly AI, offers the best hope for addressing the long-term decline in productivity.
His comments come amidst recent muted UK GDP growth figures and an International Monetary Fund forecast predicting high inflation for the UK in 2025 and 2026.