Introduction : the macro level / Peter Devonshire and Rohan Havelock -- Introduction : the micro level / Peter Devonshire and Rohan Havelock -- The commercial triple helix : contract, property and unjust enrichment / Sarah Worthington -- Proprietary claims to recover mistaken or unauthorised payments / Peter Jaffey -- Restitution : a new start? / Lionel Smith -- Doctrinal rivalry over liability for defective transfers / Rohan Havelock -- Equity and the value of certainty in commercial life / Matthew Harding -- Expansion of the fiduciary paradigm into commercial relationships : the Australian experience / Stephen Gageler -- Deemed performance in account of profits / Lusina Ho -- Forfeiture of agents? : remuneration / Peter Watts -- Third-party liability of recipients of trust property / David Hayton -- Account of profits for accessory liability : still in the thrall of fiduciary doctrine? / Peter Devonshire.