A book about the difference between General and Restricted economies is Complementarity by Arkady Plotnitsky. In this case "meta" is defined as what is beyond: the meta-system is what lies beyond the system.
Meta-systems normally refer to contexts, milieux, situations, ecosystems, environments surrounding a system which the system must interact with in order to remain viable. Meta-systems have a different structure (are complementary to) the structure of systems. Without this complementarity in tact the system could not remain viable or operate.