Guidance 94

An Introductory Guide to Public Private Partnerships (PPPs)
Government of Hong Kong SAR, 2nd edition (March 2008)

Section 8 (pages 68-71) discusses some of the implications of adjustments to
contract terms.

http://www.eu.gov.hk/english/psi/psi_guides/psi_guides_ppgpop/psi_guides_ppgpop.html#3