We know that rapid growth in demand tends to put upward pressure on prices. So with numbers like these perhaps it’s not surprising to see inflation going up, here and in other countries. In the UK, annual CPI inflation has risen from ½% to 2½% in the past four months. That’s more than half a percentage point higher than in late 2019, immediately before the pandemic. The MPC expects inflation to rise significantly further, to well over 3%, over the next six months. But in some ways the extent of the rise is a bit surprising. The economy may have grown very strongly over the past year but that’s only because it contracted so spectacularly in the first half of 2020, during the first phase of the pandemic. Even now, it’s still a long way from where it was before all this began. Growth of 5% in Q2 would still leave UK GDP 4% lower than at the end of 2019. And economic contractions don’t normally lead to higher inflation. We can identify a number of contributory factors, things that help to account for this contrast, right off the top. One is base effects. Arguably, comparing economic growth over the past eighteen months with the change in prices over the past twelve isn’t quite fair. One of the reasons annual inflation has risen so steeply through this spring is that prices of goods (energy in particular) fell significantly a year earlier, during the first phase of the pandemic.
The Taiwan Semiconductor Manufacturing Company, a major producer, said last week that its own production had risen 30% in the first half of 2021, relative to the same period a year earlier, and that it expects full year growth of 60% (in response to what have been much milder price rises I think this counts as relatively “elastic” supply). The Chief Executive of the company said “we expect the shortage to be greatly reduced for TSMC customers starting this quarter”.10  One would expect this to take some of the heat out of semiconductor prices, and those of the goods that rely on them. As for shipping, which has affected the time and cost required for all international goods trade, expectations of future prices, as indicated by forward contracts (Chart 15), imply material declines over the next year or so. See, for example Winkelried (2021), ‘Unit roots in real primary commodity prices? A meta-analysis of the Grilli and Yang data set’. Journal of Commodity Markets, article in press. 10 See “TSMC signals global chip crunch may be easing”, Financial Times, 15 July 2021. 9  12  All speeches are available online at www.bankofengland.co.uk/news/speeches and @BoE_PressOffice  12  Chart 15: Forward contracts suggest material declines in shipping costs  Sources: Baltic Exchange and Bank calculations. Panamax is a sub-index covering mid-sized vessels travelling on 5 of the 23 shipping routes of the full index. It co-moves quite closely with the overall Baltic Exchange Dry Index.