The business of mining the mining business, uncertainty, project variables and risk, royalty agreements, pricing and contract systems, and accounting for the extractive industry / Odwyn Jones, Emeritus Professor, Curtin University, Perth, Australia, Eric Lilford, Western Australian School of Mines, Curtin University, Perth, Australia, A.J.S. Spearing, Western Australian School of Mines, Curtin University, Kalgoorlie, Australia, Grantley Taylor, Curtin Business School, Curtin University, Perth, Australia.