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He argued that these secular forces are likely to have played, and continue to play, a non-negligible role in explaining the sluggish response of inflation to economic activity and monetary policy in recent years.
He started by presenting some stylised facts that illustrate the extent of past changes in consumption and production patterns in the euro area, the United States and Japan. He then explained how these changes, and the shift towards services, are likely to have affected monetary policy transmission on both sides of the Atlantic.
In short, prices in the services sector change much less frequently than in other sectors and are less sensitive to exchange rates. This means that it takes longer for inflation to respond to changes in monetary policy and economic activity than it did a few decades ago.
He also suggested that the rise of the services sector in economies has only affected the pace of the response of inflation to shocks, but not the overall effectiveness of monetary policy. In other words, the effects of monetary policy take longer to pass through the economy but they have not become less powerful.
Finally, he argued that policies that can help raise productivity and competition in the services sector may contribute to reduce the lags with which monetary policy is transmitted to consumer prices.
He summed up his speech with three key takeaways: