| Database Identifier | 11884 | |
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| Information Resource Identifier | 11884 |
| Information Resource Long Title | Forestry and Agricultural Sector Optimization Model - Greenhouse Gas Version | ||||||||||
| Information Resource Short Title | FASOM-GHG | ||||||||||
| Acronym | FASOM-GHG | ||||||||||
| Short Description | FASOM-GHG is a multi-period, intertemporal, price-endogenous, mathematical programming model simulating future potential policy impacts on land use, markets and GHG fluxes between and within the U.S. agricultural and forest sectors. | ||||||||||
| Long Description | FASOM-GHG is a dynamic, multi-period, intertemporal, price-endogenous, mathematical programming model depicting land transfers and other resource allocations between and within the agricultural and forest sectors in the US. The model solution portrays simultaneous market equilibrium over an extended time, typically 40 to 100 years on a five year time step basis. The results from FASOM-GHG yield a dynamic simulation of prices, production, management, consumption, GHG effects, and other environmental and economic indicators within these two sectors, under the chosen policy scenario. The model simulates the potential allocation of land over time to competing activities in both the forest and agricultural sectors. In doing this it simulates the potential consequences of different modeled policies for the commodity markets supplied by these lands and the net greenhouse gas (GHG) emissions. The model was developed to evaluate the welfare and market impacts of public policies and environmental changes affecting agriculture and forestry. To date, FASOM-GHG and its predecessor models FASOM and ASM have been used to examine the effects of GHG mitigation policy, climate change impacts, public timber harvest policy, federal farm program policy, bioenergy prospects, and pulpwood production by agriculture among other policies and environmental changes. | ||||||||||
| Ownership Type | Non-EPA Resource | ||||||||||
| Information Resource Type | Model | ||||||||||
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| Created Date | 2011-09-01 06:56 PM |
| Organization Name | Organization Role |
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| EPA / OAR / OAP / CCD - Climate Change Division | Primary Managing Organization |
| Name | No contact specified | |
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| URL | Type |
| http://agecon2.tamu.edu/people/faculty/mccarl-bruce/FASOM.html | Internet |
| If there is some reason this information resource record should not appear on the READ Public Website, please explain | ||
| READ Public Display Approved | Yes | |
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| Current Life-Cycle Phase | Operations and Maintenance | |
| There are no life-cycle phase versions specified for this information resource. | ||
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| General User Types |
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| EPA Users - AAShips |
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| Model Inputs Description: | forestry and agriculture biophysical/natural science and economic information, related market/commodity information, GHGs, land use area for more information, see http://agecon2.tamu.edu/people/faculty/mccarl-bruce/FASOM.html | |
| Data Requirement: | Low - Data Generally Publicly Available |
| The solution to the nonlinear programming problem provides information in eight areas:
Consumers' and producers' welfare Agricultural production and prices Forest area and
inventory volumes Harvest levels and prices Wood product output and prices Land and
forest asset values Carbon sequestration amounts and "prices" Land transfers Model Output Types: Data (spreadsheet, database) Model Output Variables: |
| User's Guide URL | User's Guide Name | User's Guide Size | User's Guide Type | User Guide's Description | User Guide's Format Type | User Guide's Public Flag |
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| http://agecon2.tamu.edu/people/faculty/mccarl-bruce/FASOM.html | FASOM documents | URL | UNKNOWN | Yes |
| There are no Other User Documents specified for this information resource. |
| Understanding of: forest and agriculture ecosystems and related commodity markets/economics, GHG accounting, economic model functions, model programming, GAMS |
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| Other Cost Considerations: | GAMS license needed for running model | |
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| FASOMGHG is a multiperiod, intertemporal, price-endogenous, mathematical programming model depicting land transfers and other resource allocations between and within the agricultural and forest sectors in the US. The model solution portrays simultaneous market equilibrium over an extended time, typically 30 to 100 years on a five-year time step basis. The results from FASOMGHG yield a dynamic simulation of prices, production, management, consumption, GHG effects, and other environmental and economic indicators within these two sectors, under the scenario depicted in the model data. |
| FASOMGHGs key endogenous variables include: commodity and factor prices, production, consumption, export and import quantities, land use allocations between sectors, management strategy adoption, resource use, economic welfare measures, producer and consumer surplus, transfer payments, net welfare effects, environmental impact indicators, GHG emission/absorption of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) surface, subsurface, and groundwater pollution for nitrogen, phosphorous, and soil erosion. FASOMGHG is dynamic in that it solves for the simultaneous multi-market, multi-period equilibrium across all agricultural and wood product markets, and for all time periods within the specified time horizon. Thus it produces an intertemporal, intersectoral land market dynamic equilibrium. FASOMGHG embodies a nonlinear objective function, representing the sum of producers and consumers surpluses in all of the included product and factor markets. It is price-endogenous because the prices of the products produced and the factor inputs used in the two sectors are determined in the model solution. Finally, FASOMGHG is a mathematical programming model because it uses numerical optimization techniques to find the multi-market price and quantity vectors that simultaneously maximize the value of an objective function, subject to a set of constraints. |
| Brief description and/or references, as available, pertaining to: verification of code; corroboration of model results with observations of real systems; sensitivity analysis; uncertainty analysis; comparisons with other models regarding accuracy and predictive capacity; and any peer review references: over 30 years of studies and documentation. A peer review of the model is available at www.epa.gov/climatechange/EPAactivities/economics/modeling/peerreview_FASOM.html Other studies based on FASOM-GHG and model documentation are available at: http://agecon2.tamu.edu/people/faculty/mccarl-bruce/ and www.cof.orst.edu/cof/fr/research/tamm/forest_and_agriculture_sector_op.htm |
| Model Scope Definition: | FASOM-GHG is a multi-period, intertemporal, price-endogenous, mathematical programming model depicting land transfers and other resource allocations between and within the U.S. agricultural and forest sectors. The model solution portrays simultaneous market equilibrium over an extended time, typically 40 to 100 years on a five year time step basis. | |
| Decision Sector: | ||
| Time Scale: | Multi-Year | |
| Spatial Extent: | Region, Nation | |
| Technical Skills Needed to Apply Model: | Model Calibration, Other Specialized Knowledge |