Polish economic growth will reach 4.2 percent in 2019, Development Minister Jadwiga Emilewicz said on Friday in a comment to the latest stats office data. The Polish economy expanded by 3.9 percent year on year in the third quarter of 2019 after a 4.6 percent year-on-year growth in the previous quarter, the Central Statistical Office reported on Friday. The 3.9 percent figure was in line with the Development Ministry's forecasts, Emilewicz wrote.