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	<title>Trade - GRACE - Revision history</title>
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	<updated>2026-06-13T07:47:13Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.iamcdocumentation.eu/index.php?title=Trade_-_GRACE&amp;diff=14583&amp;oldid=prev</id>
		<title>Taoyuan Wei: updated</title>
		<link rel="alternate" type="text/html" href="https://www.iamcdocumentation.eu/index.php?title=Trade_-_GRACE&amp;diff=14583&amp;oldid=prev"/>
		<updated>2020-11-24T14:51:16Z</updated>

		<summary type="html">&lt;p&gt;updated&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:51, 24 November 2020&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{ModelDocumentationTemplate&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Total domestic output is distributed between export and domestic markets. In the core version of the GRACE model, domestic and export supplies are treated as perfect substitutes in production. In contrast, imported and domestically produced commodities are assumed imperfect substitutes. Following the [https://www.jstor.org/stable/3866403?seq=1 Armington approach], we use a CES function to depict imperfect substitutability between imports and domestically produced goods, so that domestic and imported goods comprise the so-called Armington aggregate. In a two-level Armington aggregate, the first level depicts substitution in imports between regions, and the second level describes substitution between imported and domestically produced commodities. The Armington elasticities of substitution are obtained from the [https://globalchange.mit.edu/sites/default/files/MITJPSPGC_Rpt278.pdf MIT EPPA model]. Furthermore, importing countries pay a price premium to the international transport sector. This price premium is determined by a fixed transport factor derived from the base year data. The supply of international transport services is depicted by a Cobb-Douglas aggregate of the service good from the individual regions. The Armington aggregate is then distributed between private, public, investment, and intermediate consumption.&lt;/ins&gt;{{ModelDocumentationTemplate&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|DocumentationCategory=Trade&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|DocumentationCategory=Trade&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Taoyuan Wei</name></author>
	</entry>
	<entry>
		<id>https://www.iamcdocumentation.eu/index.php?title=Trade_-_GRACE&amp;diff=13787&amp;oldid=prev</id>
		<title>Mathijs Harmsen: Edited automatically from page GRACE setup.</title>
		<link rel="alternate" type="text/html" href="https://www.iamcdocumentation.eu/index.php?title=Trade_-_GRACE&amp;diff=13787&amp;oldid=prev"/>
		<updated>2020-08-03T17:41:49Z</updated>

		<summary type="html">&lt;p&gt;Edited automatically from page &lt;a href=&quot;/GRACE_setup&quot; title=&quot;GRACE setup&quot;&gt;GRACE setup&lt;/a&gt;.&lt;/p&gt;
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|DocumentationCategory=Trade&lt;br /&gt;
}}&lt;/div&gt;</summary>
		<author><name>Mathijs Harmsen</name></author>
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