A key measure of U.S. inflation rose less than forecast in March on a drop in apparel prices following a methodology change for data collection, offering some reinforcement for the Federal Reserve’s message of patience on interest rates.

The core consumer price index, which excludes food and energy, rose 0.1 per cent from the prior month, and 2 per cent from a year earlier, according to a Labor Department report Wednesday. Those readings missed both the monthly and annual estimates of economists, while the broader CPI climbed 0.4 per cent as forecast and a faster-than-estimated 1.9 per cent annually.

Wednesday’s numbers likely reflect some effects from new data collected directly from a department store company, which the March report incorporated for the first time. Economists at Goldman Sachs Group Inc. and Societe Generale SA had projected the change could cause a drag from apparel on the broader measure.

Apparel prices fell 1.9 per cent from the prior month, the most since 1949, and were down 2.2 per cent from a year earlier. The category accounts for 3.1 per cent of CPI.

While influenced by technical factors, the softer inflation reading may add to signals the Fed may have longer to wait before price gains firm around their 2 per cent objective. A tight labor market has helped boost wages, though policy makers also confront a slowing economy and a weaker global growth outlook.

Data Dependence

President Donald Trump and senior economic adviser Larry Kudlow have cited tame inflation to justify their calls for the Fed to cut interest rates, something investors already expect in the coming year. For his part, Fed Chairman Jerome Powell has reaffirmed the central bank’s data dependence.

The figures for the broad CPI reflected higher gasoline prices after the rally in crude oil this year. Energy prices rose 3.5 per cent from the previous month as gasoline prices advanced 6.5 per cent, the most since September 2017. Food costs climbed 0.3 per cent.

Inflation remains contained despite an unemployment rate that’s close to a half-century low and wage gains near the best level of the expansion. The central bank will provide further details of what policy makers are thinking later Wednesday with the release of the latest meeting minutes.

Fed officials, who tend to focus on core inflation as a less- volatile read on underlying trends, have been vexed for years by inflation persistently falling short of their objective. Their preferred gauge -- which is tied to consumption and tends to run slightly below the CPI -- rose 1.4 per cent in January from a year earlier as core prices increased 1.8 per cent.

A separate report Wednesday from the Labor Department showed how inflation is affecting consumers’ spending power. Average hourly earnings, adjusted for price changes, rose 1.3 per cent in March from a year earlier, following a 1.9 per cent gain in February that was the fastest since 2015.

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-Economists surveyed by Bloomberg had forecast the core gauge would rise 0.2 per cent from the prior month and 2.1 per cent from a year earlier, while the broader index was projected to rise 0.4 per cent monthly and 1.8 per cent annually.

-The report showed used-car prices fell 0.4 per cent, the third drop in four months, while new car prices advanced 0.4 per cent in the biggest gain since June.

-Shelter costs, which account for about a third of the CPI, rose 0.4 per cent, the most since August 2017, as owners- equivalent rent, one of the categories that tracks rental prices, climbed 0.3 per cent.

-Rent of primary residence rose 0.4 per cent. The CPI is the broadest of three price gauges from the Labor Department because it includes all goods and services.

-About 60 per cent of the index covers the prices that consumers pay for services ranging from medical visits to airline fares, movie tickets and rents.

--With assistance from Jordan Yadoo