Morrison backs mature IR debate

Federal treasurer Scott Morrison wants an end to the usual battle between business and unions over workplace relations.

Federal Treasurer Scott Morrison laments the predictable fight between unions and business over penalty rates.

Prime Minister Malcolm Turnbull has flagged the inevitability of changes to weekend rates.

Mr Morrison, speaking to ABC radio on Wednesday, called for an end to the "us and them rhetoric" that dominated the workplace relations debate, citing reforms in the UK.