Christian Democrat MPs say it is extremely undesirable that two book distribution companies control 80% of the school books market, news agency ANP reports.

MPs say the dominance of two players is unhealthy for the price of school books and wants the competition authority NMa to investigate.
From next year, schools themselves will be responsible for buying in text books, which the government hopes will force prices down.
But MPs from all parties are concerned that big school groups have to put their text book lists out to pan-European tender, which they say will increase bureaucracy and may hit choice.