Welcome to the Lot-Sizing Website.

The subdirectory “PPbyMIP” contains material related to the book:

Production Planning by Mixed Integer Programming

by Yves Pochet and L.A. Wolsey, Springer, New York (2006).

The subdirectory “Libs” provides access to the files comprising the LS-LIB library

and documentation.

The subdirectory “LS-Instances” contains lot-sizing and production planning test instances, including problems from the earlier set of problems LOTSIZELIB