2007 and Polish LFS data in order to: (a) analyze the development of the shadow employment in Poland in years 2003-2008 and … employment in Poland in years 2003-2008 was increasing until 2006 and then started to decrease in the years 2007 and 2008. Other … results are in line with one of the main conclusions of the CASE study from 2007 suggesting that shadow employment is more a …