The global surge in artificial intelligence investment could eventually trigger a prolonged economic downturn if spending fails to generate the expected returns, according to a report highlighted by the Bank for International Settlements (BIS). The report warns that technology companies are investing unprecedented sums in AI infrastructure—including data centres, chips, and cloud computing—in anticipation of future demand. If those expectations prove overly optimistic, the resulting pullback in investment could have significant consequences for the global economy.
The BIS estimates that the world's largest hyperscale technology companies are expected to invest more than $1 trillion in AI-related capital expenditure during 2025 and 2026. While AI has the potential to transform productivity, the report cautions that intense competition and fear of falling behind may be encouraging excessive investment before sustainable business models and revenue streams are fully established.
The report draws comparisons with previous investment booms such as the railway expansion of the 19th century and the dot-com bubble of the late 1990s. In those cases, transformative technologies ultimately succeeded, but excessive short-term investment led to financial losses and prolonged market corrections. The BIS warns that a similar pattern could emerge in AI if infrastructure spending significantly outpaces actual commercial returns, especially given the growing use of debt financing and elevated technology stock valuations.
Despite these risks, the report does not argue that AI itself is a bubble or that investment should stop. Instead, it emphasizes the need for sustainable capital allocation, prudent financing, and realistic expectations about AI adoption. If companies can successfully translate massive infrastructure spending into long-term productivity gains and profitable AI applications, the technology could still deliver substantial economic benefits. However, if investment slows abruptly, the resulting correction could ripple through financial markets and the broader global economy.
