On the design of input prices: Can TELRIC prices ever be optimal? - David E. M. Sappington (Inf. Econ. Policy, 2006)

A note on optimal procurement contracts with limited direct cost inflation. - Leon Yang Chu; David E. M. Sappington (J. Econ. Theory, 2007)

The Make-or-Buy Decision in the Presence of a Rival: Strategic Outsourcing to a Common Supplier. - Anil Arya; Brian Mittendorf; David E. M. Sappington (Manag. Sci., 2008)