Bond yields bite harder, India's economy accelerates, and crop prices flash an inflation warning

A gilt is simply a UK government bond, a promise to pay a fixed sum each year and return the principal at the end. When investors sell gilts, the price falls and the yield, the fixed payment as a share of the now-lower price, rises. The UK 30-year yield at 6% means the government must now offer that annual return to attract buyers for three-decade debt. That is not just a number on a screen: every new bond the Treasury issues to fund public spending locks in that cost for thirty years.

The part that does not quite add up is why yields are rising even as US inflation came in softer than expected. The usual story is that lower inflation means lower rates ahead, which should pull yields down. One answer is that investors are demanding a higher term premium, the extra return they want for locking money away for a long time, because they are less sure where rates will end up over thirty years. If that reading is right, the sell-off is not about today's inflation but about long-run uncertainty, and no single data point will stop it. For the UK's new government, that is the harder problem: you can wait for inflation to fall, but you cannot easily talk down a market that has decided the future is genuinely uncertain.

Three separate data releases on the same morning all pointing upward is worth pausing on. The PMI is a leading indicator, a measure that tends to move before the broader economy does, because purchasing managers place orders today for production next month. A seven-month high in September means the people actually running factories expect demand to keep coming. The 8% industrial production figure for August confirms that expectation was already being met. And the Finance Ministry's 7.3% GDP forecast for the quarter is the government's own reading of where all this lands in aggregate.

The honest caveat is that one quarter of strong data does not settle the debate about whether India's growth is structural, meaning built on lasting improvements in productivity and infrastructure, or cyclical, meaning driven by a temporary surge in demand that will fade. The export-order detail is the most interesting piece to me: buyers in Brazil, Europe, the UAE and the US all expanding orders at once suggests Indian manufacturers are genuinely competitive across markets, not just filling a gap left by one disrupted supplier. If that holds through the next quarter, it starts to look structural. If global demand softens as bond yields bite into spending in the US and UK, the export orders will be the first line to weaken.

A supply shock is a sudden change in the cost or availability of something the whole economy depends on, and food is the clearest example. When crop prices jump, the cost of producing almost everything rises: bread, meat, processed food, restaurant meals. That pushes the overall price level up even if wages and consumer spending have not changed at all. The central bank's standard response, raising the interest rate to cool borrowing and spending, does not fix a supply shock because the problem is not that people are spending too much. It is that there is less food to buy at the old price.

The 2022 parallel is instructive but does not hold all the way. In 2022, the crop price spike was driven largely by Russia's invasion of Ukraine cutting off Black Sea grain exports, a specific and identifiable cause. This time the Bloomberg report does not pin down a single driver, which makes it harder to judge whether the move is temporary or persistent. That distinction matters enormously for central banks: a one-month spike they can look through, but a sustained rise forces them to act even though rate rises cannot fix the underlying problem. For an IB Paper 1 essay on the limits of monetary policy, this is exactly the kind of case that earns the top marks: the tool exists, but the diagnosis tells you it is the wrong tool.