Swedish to English Social Sciences Government / Politics public administration

It's an organisational model used for healthcare provision - does anyone know the correct translation - very grateful for any help at all with this.

full sentence:
År 1992 införde den borgerligt styrda
landstingsfullmäktige i Stockholms län
den s.k. »Stockholmsmodellen« inom landstinget,
en beställar- och utförarmodell.