(c) 2013, Bloomberg News.

(c) 2013, Bloomberg News.

WARSAW, Poland Poland's economic growth accelerated in the July-September period for a third consecutive quarter, driven by rising exports and a consumer-spending revival fueled by record-low borrowing costs.

Gross domestic product, unadjusted for seasonal effects, rose 1.9 percent from a year earlier, after a 0.8 percent gain the previous quarter, the statistics office in Warsaw said Friday, confirming a Nov. 14 preliminary estimate. Export growth accelerated to 6.4 percent from a revised 3.2 percent and private consumption quickened to 1 percent from 0.2 percent.

Monetary policymakers have cut the benchmark interest rate by 2.25 percentage points since last November to help a recovery from the country's worst slowdown in more than a decade. The central bank plans to leave the rate at a record low until at least mid-2014 because consumer-price growth may hold below the target of 2.5 percent through 2015.

"I can't rule out rates staying unchanged through the third quarter of 2014," Anna Zielinska-Glebocka, a member of the rate-setting Monetary Policy Council, said on TVN CNBC Friday. "The pace of domestic-demand recovery isn't dangerous for inflation."

Fixed investment rose 0.6 percent after dropping a revised 3.2 percent in the second quarter and domestic demand rose 0.5 percent after declining for the three previous quarters. It fell a revised 1.7 percent in the second quarter.

The European Commission this month raised its 2013 growth estimate for the Polish economy to 1.3 percent from 1.1 percent. GDP may advance 2.5 percent in 2014 and 2.9 percent the year later, the commission said.

"The growth structure provides a solid dose of optimism for coming quarters," said Tomasz Kaczor, chief economist at Bank Gospodarstwa Krajowego in Warsaw. "The economy has regained its second pillar and is growing not only on exports, but also on domestic demand. The gain was quite a surprise."