Unions have demanded a seat at the table to determine any boost to unskilled migration amid fears an influx of workers could drive down wages.

Employers have backed the move to boost migration, arguing it would fill the jobs Australians don't want to take.

While Australian Council of Trade Unions secretary Jeff Lawrence said yesterday unions were not opposed to an increase in immigration, he warned a cautious, structured approach was needed.

http://www.theaustralian.news.com.au/story/0,25197,23720122-2702,00.html