Policy - GCAM - Revision history

Matthew Binsted: Added detail to GCAM policy section

2023-10-06T16:44:31Z

Added detail to GCAM policy section

← Older revision		Revision as of 18:44, 6 October 2023
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	One of GCAM’s uses is to explore the implications of different future policies. There are a number of types of policies that can be easily modeled in GCAM, including policies related to emissions, land-use, and energy production. The most common of these are discussed in the documentation's [http://jgcri.github.io/gcam-doc/policies.html policy] section.		One of GCAM’s uses is to explore the implications of different future policies. There are a number of types of policies that can be easily modeled in GCAM, including policies related to emissions, land-use, and energy production. The most common of these are discussed in the documentation's [http://jgcri.github.io/gcam-doc/policies.html policy] section.

			== [https://jgcri.github.io/gcam-doc/policies.html#emissions-policies Emissions-Related Policies] ==
			There are three main policy approaches that can be applied in GCAM to reduce emissions of CO<sub>2</sub> or other greenhouse gases: carbon or GHG prices, emissions constraints, or climate constraints. In all cases, GCAM implements the policy approach by placing a price on emissions. This price then filters down through all the systems in GCAM and alters production and demand. For example, a price on carbon would put a cost on emitting fossil fuels. This cost would then influence the cost of producing electricity from fossil-fired power plants that emit CO<sub>2</sub>, which would then influence their relative cost compared to other electricity generating technologies and increase the price of electricity. The increased price of electricity would then make its way to consumers that use electricity, decreasing its competitiveness relative to other fuels and leading to a decrease in electricity demand. The three policy approaches, carbon or GHG prices, emissions constraints, and climate constraints, are discussed in detail [https://jgcri.github.io/gcam-doc/policies.html#emissions-policies here].

			== [https://jgcri.github.io/gcam-doc/policies.html#energy-production-policies Energy Production Policies] ==
			There are times in which users would like to explore the implications of a constraint on production or a minimum production requirement. This capability allows GCAM users to model policies such as renewable portfolio standards and biofuels standards. Across sectors, these constraints must be applied as quantity constraints, but they can be applied as share constraints within individual sectors (e.g., fraction of electricity that comes from solar power). In implementing these policies, this can either be a lower bound or upper bound. The model will solve for the tax (upper bound) or subsidy (lower bound) required to reach the given constraint.

			== [https://jgcri.github.io/gcam-doc/policies.html#land-use-policies Land-Use Policies] ==
			There are a number of ways that policies can be applied directly to influence the land sector in GCAM. These include the following.
			* Protected lands
			* Valuing carbon in land
			* Bioenergy constraints
			* Land constraints
			See the [https://jgcri.github.io/gcam-doc/policies.html#land-use-policies Land-Use Policies] section in the documentation for more details.

			== [https://jgcri.github.io/gcam-doc/policies.html#policy-costs Calculating Emissions Policy Costs] ==
			The cost of GHG emissions mitigation is a concept that is not uniquely defined. A wide range of measures are used in the literature. These include, the price of carbon (or as appropriate given the policy) needed to achieve a desired emission mitigation goal, reduction in Gross Domestic Product (GDP), consumption loss, deadweight loss, and equivalent variation. Beyond that the concept of net cost, which includes the benefits of emissions mitigation as well as the resource cost of emissions reduction and the social cost of carbon are also encountered. GCAM makes no attempt to calculate the benefits. See [https://jgcri.github.io/gcam-doc/policies.html#policy-costs Calculating Emissions Policy Costs] for details.

Matthew Binsted at 13:40, 2 September 2020

2020-09-02T13:40:29Z

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	One of GCAM’s uses is to explore the implications of different future policies. There are a number of types of policies that can be easily modeled in GCAM, including policies related to emissions, land-use, and energy production. The most common of these are discussed in the documentation's [http://jgcri.github.io/gcam-doc/policies.html policy section].		One of GCAM’s uses is to explore the implications of different future policies. There are a number of types of policies that can be easily modeled in GCAM, including policies related to emissions, land-use, and energy production. The most common of these are discussed in the documentation's [http://jgcri.github.io/gcam-doc/policies.html policy] section.

Matthew Binsted at 18:38, 1 September 2020

2020-09-01T18:38:24Z

← Older revision		Revision as of 20:38, 1 September 2020
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	One of GCAM’s uses is to explore the implications of different future policies. There are a number of types of policies that can be easily modeled in GCAM. The most common of these are discussed [http://jgcri.github.io/gcam-doc/policies.html ~~here~~].		One of GCAM’s uses is to explore the implications of different future policies. There are a number of types of policies that can be easily modeled in GCAM, including policies related to emissions, land-use, and energy production. The most common of these are discussed in the documentation's [http://jgcri.github.io/gcam-doc/policies.html policy section].

Matthew Binsted at 17:59, 17 August 2020

2020-08-17T17:59:12Z

← Older revision		Revision as of 19:59, 17 August 2020
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			One of GCAM’s uses is to explore the implications of different future policies. There are a number of types of policies that can be easily modeled in GCAM. The most common of these are discussed [http://jgcri.github.io/gcam-doc/policies.html here].

Rineke Oostenrijk: Text replacement - "CGAM" to "GCAM"

2020-03-02T12:05:21Z

Text replacement - "CGAM" to "GCAM"

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Rineke Oostenrijk: Text replacement - "|IsDocumentationOf=GAMS" to "|IsDocumentationOf=CGAM"

2020-03-02T11:18:28Z

Text replacement - "|IsDocumentationOf=GAMS" to "|IsDocumentationOf=CGAM"

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Rineke Oostenrijk: Rineke Oostenrijk moved page Policy - GAMS to Policy - GCAM without leaving a redirect: Text replacement - "GAMS" to "GCAM"

2019-12-17T15:37:48Z

Rineke Oostenrijk moved page Policy - GAMS to Policy - GCAM without leaving a redirect: Text replacement - "GAMS" to "GCAM"

← Older revision

Revision as of 17:37, 17 December 2019

Rineke Oostenrijk: Edited automatically from page GAMS setup.

2019-12-17T14:26:54Z

Edited automatically from page GAMS setup.

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