Where the gain comes from

Against current practice, on identical assumptions. The instrument is the smaller part of the answer.
How the cost fallsModel output
Current practice17.36B
Price the land and compete the support-10.80B88%

Pillars one and two. Available under any settlement method.

Choose an entitlement rather than cash-1.40B12%

Pillar three. Requires a government determination.

Recommended design5.15B

The national appraisal, not the demonstration programme.

Unit: IQD

Show the data as a table
ChangeEffect on costShare of improvement
Current practice17.36B
Price the land and compete the support-10.80B88%
Choose an entitlement rather than cash-1.40B12%
Recommended design5.15B

Pricing land and competing support delivers {land}% of the improvement; the settlement instrument delivers {instrument}%.

Model output

Price the land and compete the support

-10.80B

88%Pillars one and two. Available under any settlement method.

Choose an entitlement rather than cash

-1.40B

12%Pillar three. Requires a government determination.

Total improvement

-12.21B

For 595 affordably occupied homes on the same basis.

How to read this

The first change costs nothing to decide and needs no new instrument. The second is the part under audit, and it is worth less than the first.

Mechanism comparison