Consumer purchases unexpectedly stalled in April as Americans used income gains to shore up savings, raising the risk the biggest part of the economy may take time to gain momentum after a slow start to the year.

Consumer confidence unexpectedly fell in May by the most in more than two years as Americans’ views on the economy dimmed.

Consumer spending climbed in March, capping a lackluster first-quarter performance that was enough to keep the U.S. economy from shrinking.

Consumer confidence improved in April to the second-highest level in more than eight years as Americans held more favorable views of the economic outlook and inflation.

The cost of living in the United States, excluding food and fuel, rose 0.2% in March for a third month, signaling inflation is starting to firm.

Consumer confidence increased last week to an almost eight-year high as Americans viewed the U.S. economy in a more favorable light and said it was better time to spend.

Consumer purchases rose less than projected in February, indicating the biggest part of the U.S. economy will find it hard to sustain momentum after the best quarter since 2006.

Consumer purchases adjusted for inflation rose in January, a sign the plunge in gasoline prices is helping boost the biggest part of the U.S. economy.

Consumer confidence fell more than forecast in February as the initial elation over a drop in fuel prices waned and Americans grew less optimistic about prospects for employment and income.