Systems Economics Lexicon · Supporting Concepts — The Locus Model

Locus

The base unit of economic activity: a single pairing of an activity with the resources required to produce its output.

StatusSupporting term
SectionSupporting Concepts — The Locus Model

Understanding Locus

A locus takes one of two syntactic forms: a work locus (verb plus object) describing an Economic System, or a resource locus (subject, verb, object) describing a resource; both can take on further refinements, such as distinguishing resources and information outputs, that qualify the base activity-object pairing without changing its core two- or three-part grammar. These two subtypes are the building blocks that barcodes (Enterprise Barcode, Labor Barcode) organize into structured records via barcode fields, levels, and sections. The Ford case study and the individual/laborer chapter give concrete instances of loci in use: an individual performs the RP work locus 1.3.2 F at the agent level, interpreted as providing labor temporarily to an employer, while a doctor’s job might combine the tasks 2.3.1 F (C2iii) (diagnosis) and 2.3.2 F (repair) under a single employer, showing a locus functioning as a specific, addressable statement of activity plus resource rather than just an abstract definition. Because the object of an activity determines which resources are needed and in what roles, a locus encodes a specific functional orientation toward a particular output, and loci link to one another through flows of products and services — this linked, self-sustaining system of transformations is what qualifies the economy as a living system.

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