The impact of the LHC, SLHC and the ILC on the precision of the determination
of supersymmetric parameters is investigated. In particular, in the point SPS1a
the measurements performed at the ILC will improve by an order of magnitude the
precision obtained by the LHC alone. The SLHC with respect to the LHC has the
potential to reduce the errors by a factor two.Comment: Invited talk at 2005 International Linear Collider Physics and
Detector Workshop and Second ILC Accelerator Workshop, Snowmass,
CO(Snowmass05) 3 pages, LaTe