<?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>0186-7202</journal-id>
<journal-title><![CDATA[Estudios Económicos (México, D.F.)]]></journal-title>
<abbrev-journal-title><![CDATA[Estud. Econ. (México, D.F.)]]></abbrev-journal-title>
<issn>0186-7202</issn>
<publisher>
<publisher-name><![CDATA[El Colegio de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0186-72022025000100102</article-id>
<article-id pub-id-type="doi">10.24201/ee.v40i1.e461</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Treating equals equally and unequals unequally in one-sided matching markets]]></article-title>
<article-title xml:lang="es"><![CDATA[Trato diferenciado por tipo en mercados de asignación unilaterales]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cantala]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Palacios]]></surname>
<given-names><![CDATA[Saúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,El Colegio de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigación y Docencia Económica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2025</year>
</pub-date>
<volume>40</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0186-72022025000100102&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0186-72022025000100102&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0186-72022025000100102&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: We introduce in the one-sided assignment game by Shapley and Scarf (1974) the requirement called &#8220;Treating equals equally and unequal unequally&#8221; (TEEUU). We model an assignment as a measurable function that assigns a type of good to each type of agent. We establish: 1) a method, originated in optimal transportation theory, to find a TEEUU assignment in the core whenever it existsby searching a Pareto optimal assignmentand 2) conditions under which a TEEUU assignment in the core always exists.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En el mercado de asignación unilateral de Shapley y Scarf (1974) introducimos el axioma de &#8220;trato diferenciado por tipo&#8221; (TEEUU, por sus siglas en inglés). Modelamos el mercado de asignación como una función medible que asigna a cada tipo de agente un tipo de bien. Establecemos: 1) un método, fundamentado en la literatura de transporte óptimo, que permite encontrar una asignación en el núcleo que cumpla con el axioma TEEUU siempre que exista (el método consiste en buscar una asignación Pareto óptima); 2) condiciones que garantizan la existencia de una asignación en el núcleo que cumpla con TEEUU.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[one-sided matching]]></kwd>
<kwd lng="en"><![CDATA[optimal transportation theory]]></kwd>
<kwd lng="en"><![CDATA[Pareto optimality]]></kwd>
<kwd lng="en"><![CDATA[core]]></kwd>
<kwd lng="en"><![CDATA[C61]]></kwd>
<kwd lng="en"><![CDATA[C62]]></kwd>
<kwd lng="en"><![CDATA[C78]]></kwd>
<kwd lng="en"><![CDATA[D51]]></kwd>
<kwd lng="en"><![CDATA[D79]]></kwd>
<kwd lng="es"><![CDATA[one-sided matching]]></kwd>
<kwd lng="es"><![CDATA[optimal transportation theory]]></kwd>
<kwd lng="es"><![CDATA[Pareto optimality]]></kwd>
<kwd lng="es"><![CDATA[core]]></kwd>
<kwd lng="es"><![CDATA[C61]]></kwd>
<kwd lng="es"><![CDATA[C62]]></kwd>
<kwd lng="es"><![CDATA[C78]]></kwd>
<kwd lng="es"><![CDATA[D51]]></kwd>
<kwd lng="es"><![CDATA[D79]]></kwd>
</kwd-group>
</article-meta>
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