If we reduce the number of immigrants will that reduce pressure on infrastructure and the cost of housing? The short answer is yes, but it will cost us in other ways. So how should we choose our skilled immigrants and help them make the biggest contribution?  Guests Diana Mousina: Deputy Chief Economist, AMP. Brendan Coates:  Economic Policy Program Director, Grattan institute.  Cassandra Windsor: Chief Economist,  CEDA ( Committee for Economic Development of Australia) Tim Harrison: CEO of Ararat Rural City Council, Victoria.