Tinbergen-Bos Systems (TBS) operationalise Losch's general spatial economic
equilibrium model in terms of "centers" (clusters of activities) and "syst
ems" (combinations of centers). The initial specifications are generalised
to a non-discrete metric, and a method is derived to solve the resulting lo
cation-allocation problem by linear programming. Applications are presented
, the conclusion being that the way is paved to handle large quasi-dynamic
TBS, allowing to study the evolution of "economic landscapes".