The period following Poland's accession to the European Union saw significant changes in the migration patterns of the country's population. There was an unprecedented increase in scale: in just three years the number of Polish citizens staying temporarily abroad
rose from 1 million to over 2.3 million, or 6.6% of the total population. Migration dynamics changed as well, including choice of destination and migrants' skills. Theoretically, such a massive supply shock should lead to severe adjustments
on the sending labour market. Available empirical evidence, however, indicates that there were no significant effects in either the short term (employment/unemployment) or the medium term (wages). This chapter argues that the labour market
situation in Poland was only moderately affected by the recent outflow. Nevertheless, serious long‐term impacts may be in store, particularly in terms of demographic structures and regional allocation of labour on the domestic market.