| English | 中文 |
economic_model is this project’s navigation group for methods that describe the economy and its resource or environmental links. It is not a claim that every method here is an economics model: input-output (IO) analysis is an accounting model, computable general equilibrium (CGE) solves a specified economic equilibrium, econometrics estimates relationships from data, material flow analysis (MFA) tracks physical flows and stocks, and life cycle assessment (LCA) evaluates a product system’s potential environmental impacts.
| Method | Main question | Read |
|---|---|---|
| IO | Which upstream production and physical footprints correspond to stated final demand? | Input-output analysis |
| CGE | How might prices, quantities, incomes and trade adjust to a specified shock? | Computable general equilibrium |
| Econometrics | Which associations, predictions or identified effects are supported by observed variation? | Econometric analysis |
| MFA | Where do materials enter, move through, accumulate in, and leave a defined system? | Material flow analysis |
| LCA | What potential impacts are associated with a stated product function and life-cycle boundary? | Life cycle assessment |
The methods can share sector and region mappings, but their monetary and physical accounts, system boundaries, and assumptions need separate checks. A link between two methods does not itself create an economic or environmental feedback. See the stage 01 methods and methods index for their project roles. SEEA provides the broader environmental-economic accounting context; ISO 14040 describes the LCA framework.
Related public skills include the K-Dense industrial-ecologist agent skill, which organizes MFA, IO and LCA around system boundaries and mass balance, Tiangong LCA skills, EconAgentSkills, and a general-equilibrium model-builder skill whose pure-exchange scope is narrower than CGE. The open-source calculation projects pymrio, flodym and Brightway provide method-specific software. The small scripts linked by local skills are independent demonstrations; they do not bundle those packages or their databases.