A recent weakness in energy prices reduced 12-month inflation in advanced economies to 2.5 percent overall in April, the Organization for Economic Cooperation and Development said on Tuesday.
Inflation in the 12 months to March in the 34 members of the Organization for Economic Cooperation and Development was 2.7 percent.
Inflation slowed markedly in the United States, Britain and China.
The OECD attributed the fall to a slowing of the 12-month rise in energy prices.
The price of oil has hit a weak patch recently, largely owing to prospects that global economic growth might falter.
The OECD said that overall, energy prices had shown a 12-month rise of 4.8 percent in April from 6.5 percent in March.
That was the lowest rate since August 2010.
Another factor was a slowing of the rise of food prices, which had increased by 3.1 percent from 3.5 percent.
“Excluding food and energy, the annual inflation rate was broadly stable at 2.0 percent in April,” the OECD said.
The organization noted a strong slowing of inflation in Britain from 3.5 percent in March to 3.0 percent in April, in the United States from 2.7 percent to 2.3 percent, and more moderately in France from 2.3 percent to 2.1 percent.
In Japan, inflation edged down from 0.5 percent to 0.4 percent.
In Germany, inflation was steady at 2.1 percent, and also in Italy for the third month running.
Canadian inflation rose from 1.9 percent to 2.0 percent.
Among emerging economies, inflation in China slowed to 3.4 percent from 3.6 percent in March, in Brazil to 5.1 percent from 5.2 percent, and in the Russian Federation to 3.6 percent from 3.7 percent.
But in Indonesia it accelerated to 4.5 percent from 4.0 percent and in South Africa to 6.2 percent from 6.1 percent.