The International Monetary Fund has warned that while rising defence spending can generate short-term economic gains—lifting consumption and investment, particularly in defence-related sectors—it also increases inflation and creates significant medium-term fiscal challenges, according to its analysis published on Wednesday (8 April).
Based on data from 164 countries since 1946, the IMF finds defence spending booms are becoming more frequent, typically lasting over two years and largely financed through borrowing.
• Defence outlays rise by 2.7% of GDP during a typical boom, with around two-thirds deficit-financed.
• Fiscal deficits widen by 2.6% of GDP, while public debt increases by 7 percentage points within three years.
• Short-term growth is supported, but inflation rises and external balances weaken due to import demand.
The IMF notes outcomes depend on financing, spending composition, and import reliance, urging coordinated investment and stronger domestic industrial capacity to improve long-term productivity.
ℹ️ Financial Times, IMF
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