WASHINGTON (Reuters) - U.S. non-farm productivity unexpectedly fell in the second quarter, pointing to sustained weakness that could raise concerns about corporate profits and companies' ability to maintain their recent robust pace of hiring.
The Labor Department said on Tuesday that productivity, which measures hourly output per worker, dropped at a 0.5 per cent annual rate in the April-June period. It was the third consecutive quarterly decline.
"The reason the economy has still been able to expand is because of labour input. Firms are hiring people at a reasonably healthy rate," said Joseph LaVorgna, chief economist at Deutsche Bank Securities in New York.
"However, we do not believe this can last, because strong hiring in the face of weak productivity necessarily implies a further deterioration in corporate profit margins."
Productivity fell at an unrevised 0.6 percent rate in the first quarter. Economists polled by Reuters had forecast productivity rising at a 0.4 per cent rate in the second quarter.
The U.S. dollar weakened to session lows against the yen after the data. U.S. stock futures and prices of U.S. Treasuries were largely unchanged.
Productivity decreased at a 0.4 per cent rate compared to the second quarter of 2015, the fastest year-on-year pace of decline in three years. Revisions to data going back to 2013 also confirmed the softening productivity trend, which over time would suggest pressure on corporate profits and a slowdown in job gains.
Strong employment gains have helped to raise output. Non-farm payrolls increased by more than 500,000 jobs in June and July.
SLUGGISH CORPORATE PROFITS
Corporate profits have been sluggish, in part as companies deal with the lagging impact of a strong dollar and lower oil prices. After-tax profits rebounded at an 8.1 per cent rate in the first quarter after declining 5.3 per cent in 2015. Corporate profits data for the second quarter will be published later this month.
Output per worker in the second quarter increased at a 1.2 per cent rate, up from the 0.7 per cent pace notched in the January-March period.
The government reported last month that gross domestic product rose at a 1.2 per cent annual rate in the second quarter following a 0.8 per cent rise in the first quarter.
Some economists have attributed the weak productivity to the changing industry mix, which has seen a shift from manufacturing and energy toward services. Others have questioned whether it is being accurately measured.
Productivity has increased at an annual rate of less than 1.0 per cent in each of the last five years, suggesting the economy's potential rate of growth has declined.
Unit labour costs, the price of labour per single unit of output, increased at a two per cent pace in the second quarter.
First-quarter unit labour costs were revised to show a 0.2 per cent rate of decrease, instead of the previously reported 4.5 per cent increase. Second-quarter unit labour costs rose at a 2.1 per cent rate compared to the same period of 2015.
Hourly compensation per hour rose at a 1.5 per cent rate in the second quarter after falling at a 0.8 per cent pace in the prior quarter.
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