<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-1667</journal-id>
<journal-title><![CDATA[Investigación económica]]></journal-title>
<abbrev-journal-title><![CDATA[Inv. Econ]]></abbrev-journal-title>
<issn>0185-1667</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Economía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-16672023000100105</article-id>
<article-id pub-id-type="doi">10.22201/fe.01851667p.2023.323.84380</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[El teorema Stolper-Samuelson, brecha salarial y liberalización comercial: análisis comparativo de México y Estados Unidos, 1990-2020]]></article-title>
<article-title xml:lang="en"><![CDATA[The Stolper-Samuelson theorem, wage gap and trade liberalization: a comparative analysis of Mexico and the United States, 1990-2020]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cerezo García]]></surname>
<given-names><![CDATA[Verónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Landa Díaz]]></surname>
<given-names><![CDATA[Heri Oscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Escuela Nacional de Estudios Superiores Unidad León ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Economía ]]></institution>
<addr-line><![CDATA[Unidad Iztapalapa ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<volume>82</volume>
<numero>323</numero>
<fpage>105</fpage>
<lpage>131</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-16672023000100105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-16672023000100105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-16672023000100105&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En la teoría del comercio internacional estándar se asume que el libre intercambio comercial puede conducir a la convergencia de los precios de los bienes y a la igualación de los precios de los factores de la producción. La mayor integración comercial entre México y Estados Unidos ha propiciado un incremento del volumen de exportaciones y una mayor inversión extranjera directa en México. El objetivo principal de este artículo es identificar si el proceso de liberalización comercial ha generado un efecto Stolper-Samuelson en ambos países. Mediante un modelo econométrico con datos panel del periodo 1990-2020, encontramos evidencia de que en México la brecha salarial ha disminuido para los trabajadores con menos educación y de que en Estados Unidos ha sucedido un fenómeno similar para los trabajadores con más educación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The standard theory of international trade maintains that free trade leads to good and factor of production prices equalization. Following this conventional wisdom, North American countries -in particular Mexico- engaged in a major trade liberalization which led significant increases of both exports and foreign direct investment in Mexico. The aim of this article is to assess whether economic liberalization has induced a Stolper-Samuelson effect in Mexico and the United States. An econometric model is built using panel data for the period 1990-2020 to enquire whether the wage gap has been affected by trade liberalization. It is shown empirically that such gap has been reduced for low-skilled Mexican workers, whereas a similar phenomenon is confirmed for higher-skilled American workers.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[crecimiento]]></kwd>
<kwd lng="es"><![CDATA[comercio internacional]]></kwd>
<kwd lng="es"><![CDATA[distribución del ingreso]]></kwd>
<kwd lng="es"><![CDATA[modelo de datos en panel]]></kwd>
<kwd lng="es"><![CDATA[C23]]></kwd>
<kwd lng="es"><![CDATA[D33]]></kwd>
<kwd lng="es"><![CDATA[F16]]></kwd>
<kwd lng="es"><![CDATA[O40]]></kwd>
<kwd lng="en"><![CDATA[economic growth]]></kwd>
<kwd lng="en"><![CDATA[international trade]]></kwd>
<kwd lng="en"><![CDATA[income distribution]]></kwd>
<kwd lng="en"><![CDATA[panel data models]]></kwd>
<kwd lng="en"><![CDATA[C23]]></kwd>
<kwd lng="en"><![CDATA[D33]]></kwd>
<kwd lng="en"><![CDATA[F16]]></kwd>
<kwd lng="en"><![CDATA[O40]]></kwd>
</kwd-group>
</article-meta>
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<source><![CDATA[Journal of Economic Growth]]></source>
<year>2006</year>
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<person-group person-group-type="author">
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<given-names><![CDATA[J.]]></given-names>
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<source><![CDATA[The Failure of World Monetary Reform, 1971-74]]></source>
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