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| Variable | Model driver group | Description | Is_used_in |
|---|---|---|---|
| Fraction of selective logging | Technological change in agriculture and forestry | The fraction of forest harvested in a grid, in clear cutting, selective cutting, wood plantations and additional deforestation. Fraction of selective cut determines the fraction of timber harvested by selective cutting of trees in semi-natural and natural forest. | Forest management |
| Technological change (crops and livestocks) | Technological change in agriculture and forestry | Increase in productivity in crop production (yield/ha) and livestock production (carcass weight, offtake rate). | Agricultural economy |
| Feed conversion | Technological change in agriculture and forestry | Measure of an animal's efficiency in converting feed mass into the desired output such as meat and milk (for cattle, poultry, pigs, sheep and goats). | Livestock systems |
| Harvest efficiency | Technological change in agriculture and forestry | Fraction of harvested wood used as product, the remainder being left as residues. Specified per biomass pool and forestry management type. | Forest management |
| Forest plantation demand | Technological change in agriculture and forestry | Demand for forest plantation area. | Forest management |
| Increase in irrigated area - grid | Technological change in agriculture and forestry | Increase in irrigated area, often based on external projections (e.g., FAO). | Land-use allocation |
| Production system mix | Technological change in agriculture and forestry | Livestock production is distributed over two systems for dairy and beef production (intensive: mixed and industrial; extensive: pastoral grazing), and to three systems for pigs (backyard, intermediate, intensive) and poultry (backyard, boilers, laying hens) with specific intensities, rations and feed conversion ratios. | Livestock systems Nutrients |
| Technology development of energy supply | Technological change in the energy system | Learning curves and exogenous learning that determine technology development. | Energy supply and demand Energy supply |
| Energy intensity parameters | Technological change in the energy system | Set of parameters determining the energy use per unit of economic activity (in absence of technical energy efficiency improvements). | Energy demand |
| Technology development of energy conversion | Technological change in the energy system | Learning curves and exogenous learning that determine technology development. | Energy supply and demand Energy conversion |
| Learning rate | Technological change in the energy system | Determines the rate of technology development in learning equations. | Energy supply |
| Energy efficiency technology | Technological change in the energy system | Model assumptions determining future development of energy efficiency. | Energy demand |
| Trade policy | Trade regimes, tariffs and barriers | Assumed changes in market and non-market instruments that influence trade flows, subject to WTO rules and country and region regulation. | Agricultural economy |
| Trade restriction | Trade regimes, tariffs and barriers | Trade tariffs and barriers limiting trade in energy carriers (in energy submodel). | Energy supply |