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Market pressure builds ahead of the budget

The main challenge facing the Treasury before the UK budget is that geopolitical tensions have pushed inflation and borrowing costs higher again. Ahead of the first budget to be presented on Oct. 28, oil prices have climbed from around $75 in the early weeks of the term to mostly above $100. Over the same period, the yield on the 10-year government bond has risen from 4.9% to about 5.4%.

This is directly affecting budget calculations. Higher energy prices are raising the cost of living, while rising bond yields are adding pressure on public finances. Still, the shock may not prove permanent: as seen over the summer, expectations that the conflict would ease have previously triggered sharp pullbacks in energy prices and bond yields.

The Treasury is caught between two difficult choices

The first major decision in budget planning will be how long the Treasury expects the economic effects of the Iran war to last. According to the source text, the Treasury can either assume a prolonged conflict and make more lasting tax and spending decisions, or buy time in the hope of a temporary easing.

One way to take the second path would be to allow more borrowing, even if that means accepting a narrowing of the £24 billion fiscal headroom left from the previous budget plan. In addition, although high inflation is increasing interest costs, frozen tax thresholds are also boosting cash tax revenue, giving the Treasury limited room to maneuver.

  • Rising oil prices are worsening energy costs and the inflation outlook.
  • Higher bond yields are increasing the government's borrowing costs.
  • Extra borrowing could offer short-term relief, but it may also increase pressure on fiscal rules.

Confidence indicators recover as the IMF urges caution

The second factor making decisions harder is that economic confidence has shown signs of recovery in recent months. A long-running consumer confidence survey in the United Kingdom has risen to its highest level in two years, while the outlook among young people is said to be approaching its best level since before Brexit. Business sentiment is also improving, although only modestly.

Even so, market volatility may not be driven by war alone. In global bond markets, debt levels, political and economic uncertainty, and the ability of major technology companies to attract investment are creating a new competitive environment. Kristalina Georgieva, head of the International Monetary Fund (IMF), has also warned advanced economies not to delay efforts to cut debt and tighten fiscal policy.

Meanwhile, a separate debate continues over the productivity outlook based on data from the Office for Budget Responsibility (OBR) and the Office for National Statistics (ONS). While revisions in official statistics could affect public finance forecasts, additional funding needs such as defense investment and the social care system make it difficult for budget pressure to ease anytime soon.

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