"The net economic cost of the NDIS is not the budgetary cost of...

"The net economic cost of the NDIS is not the budgetary cost of around $6.5 billion (which is a transfer of resources from one group to another). Rather, the economic costs reflect the distortionary impacts of raising the revenue, which can arise as people work less or through reduced investment. That represents a cost of around $1.6 billion. Given this, the NDIS would only have to produce an annual gain of $3,800 per participant to meet a cost-benefit test. Given the scope of the benefits,that test would be passed easily."

http://www.pc.gov.au/__data/assets/pdf_file/0011/111404/disability-support-executive-summary.pdf

From the productivity commission.

Raider