G-Cubed G-Cubed model 20C
Table of contents
Model 20C has 11 regions, 20 sectors, and 20 goods.
The 20C model has been used extensively to estimate the impact of various environmental and economic shocks and policies (see McKibbin and Wilcoxen 2013 and McKibbin et al. 2018 and 2020, IMF 2020, 2021). It has 11 regions and 20 sectors.
The lists below follow the regions, sectors, and goods declarations in the model’s SYM definition. Capital-producing sectors and goods are not included in these lists.
Regions
- United States (
USA) - Japan (
JPN) - Australia (
AUS) - Eurozone (
EUR) - Canada (
CAN) - Other advanced economies (
ADV) - China (
CHN) - India (
IND) - Rest of World (
ROW) - Russia (
RUS) - Oil-exporting economies (
OIL)
GTAP to G-Cubed country mappings
Sectors and Goods
| # | Sector | Good |
|---|---|---|
| 1 | electricity distribution (a01) | electricity (g01) |
| 2 | gas extraction and utilities (a02) | natural gas (g02) |
| 3 | liquid fossil fuels (a03) | liquid fossil fuels from oil-refining (g03) |
| 4 | coal mining (a04) | coal (g04) |
| 5 | crude oil extraction (a05) | crude oil (g05) |
| 6 | construction (a06) | construction output (g06) |
| 7 | other mining (a07) | other mining products (g07) |
| 8 | agriculture (a08) | agriculture (g08) |
| 9 | durable manufacturing (a09) | durable manufacturing (g09) |
| 10 | non-durable manufacturing (a10) | non-durable manufacturing (g10) |
| 11 | transportation (a11) | transportation (g11) |
| 12 | services (a12) | services (g12) |
| 13 | coal electricity generation (a13) | coal electricity generation (g13) |
| 14 | gas electricity generation (a14) | gas electricity generation (g14) |
| 15 | oil electricity generation (a15) | oil electricity generation (g15) |
| 16 | nuclear electricity generation (a16) | nuclear electricity generation (g16) |
| 17 | wind electricity generation (a17) | wind electricity generation (g17) |
| 18 | solar electricity generation (a18) | solar electricity generation (g18) |
| 19 | hydro electricity generation (a19) | hydro electricity generation (g19) |
| 20 | other electricity generation (a20) | other electricity generation (g20) |
GTAP to G-Cubed sector mappings
13 of the 20 sectors articulate the production and distribution of the energy required to drive economic activity and the resulting greenhouse gas emissions.
Sector 1 captures the distribution of electricity. Sectors 13 to 20 split electricity generation by type of energy source, enabling detailed analysis of shifts in fossil-fuel dependency. Sectors 2 to 5 captures fossil-fuel extraction and processing for coal, gas, and oil. The 7 non-energy sectors capture all other types of production.
The full set of 20 sectors provide detailed understanding of energy dependencies for each region while also differentiating the regions in terms of economic specialisation.
Note that the GTAP electricity sector is split into the various electricity generation sectors based on GWH electricity production shares. Those generation sectors are then aggregated into the electricity distribution sector.
GTAP to G-Cubed sector mappings
Electricity generation sectors
The endowment and factor inputs of the GTAP electricity sector is split across the electricity generation sectors in proportion to the gigawatt-hours (GWh) of electricity production by generation type for each country used to allocate electricity sector emissions among electricity generation sectors. Data on electricity production is sourced from Ember Climate.
Carbon dioxide emissions
Carbon dioxide emissions are associated with the usage of fossil fuels in the production process across all sectors. They depend on the scale of output from each sector and the fossil-fuel emission intensities of each sector.
Equations
Review the model equations for the various model builds:
References
McKibbin, W. J. & Wilcoxen, P. J. (2013), “A Global Approach to Energy and the Environment: The G-cubed Model”, Handbook of CGE Modeling, Chapter 17, North Holland, pp 995-1068.
McKibbin, W. J., Morris, A. C., Wilcoxen, P. J. & Cai, Y. (2012), “The Potential Role of a Carbon Tax in US Fiscal Reform”, The Brookings Institution.
McKibbin, W. J., Morris, A., Wilcoxen P. J. & Liu, L. (2018), “The Role of Border Adjustments in a US Carbon Tax”, Climate Change Economics vol 9, no 1, 1-42.
McKibbin, W. J., Morris, A., Wilcoxen P. J. & Panton, A. (2020), “Climate change and monetary policy: Issues for policy design and modelling”, Oxford Review of Economic Policy, 36(3), 579–603.