<?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>2448-6655</journal-id>
<journal-title><![CDATA[Análisis económico]]></journal-title>
<abbrev-journal-title><![CDATA[Anál. econ.]]></abbrev-journal-title>
<issn>2448-6655</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, Unidad Azcapotzalco, División de Ciencias Sociales y Humanidades]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-66552021000300159</article-id>
<article-id pub-id-type="doi">10.24275/uam/azc/dcsh/ae/2021v36n93/monge</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Funciones de Leontief en dos variables. Una nueva perspectiva]]></article-title>
<article-title xml:lang="en"><![CDATA[Leontief functions of two variables. A new perspective]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Monge]]></surname>
<given-names><![CDATA[Marco Vinicio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>36</volume>
<numero>93</numero>
<fpage>159</fpage>
<lpage>166</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-66552021000300159&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-66552021000300159&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-66552021000300159&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este trabajo es de naturaleza teórica. Busca proporcionar una cavilación alternativa sobre las funciones de Leontief en dos variables; alternativa en el sentido de que incorpora el cálculo diferencial &#9472;escasamente empleado en lo que respecta a este fenómeno&#9472; para hallar una forma generalizada para la Tasa Marginal de Sustitución en complementos perfectos; prescinde de este para demostrar que en una economía de dos sectores, cada uno con cualquier forma de tecnologías de Leontief, el equilibrio competitivo también coincide con la asignación tecnológicamente eficiente. Por último, se prueba que toda economía de dotación con dos individuos que tengan preferencias de Leontief &#9472;sin importar su forma específica&#9472; posee infinitos equilibrios de Pareto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This work is theoretical in nature. It seeks to provide an alternative analysis on the Leontief functions in two variables; alternative in the sense that it incorporates the differential calculus &#9472;scarcely used in what regards to this phenomenon&#9472; to find a generalized form of the Marginal Rate of Substitution in perfect complements; it dispenses with it to demonstrate that in an economy of two sectors, each with any form of Leontief technologies, competitive equilibrium also coincides with the technologically efficient allocation. Finally, it is proven that every endowment economy with two individuals both with Leontief preferences &#9472;regardless of their specific form&#9472; has infinite Pareto equilibria.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Funciones de Leontief]]></kwd>
<kwd lng="es"><![CDATA[eficiencia]]></kwd>
<kwd lng="es"><![CDATA[Tasa Marginal de Sustitución]]></kwd>
<kwd lng="es"><![CDATA[C02]]></kwd>
<kwd lng="es"><![CDATA[C62]]></kwd>
<kwd lng="es"><![CDATA[D01]]></kwd>
<kwd lng="es"><![CDATA[D11]]></kwd>
<kwd lng="es"><![CDATA[D20]]></kwd>
<kwd lng="es"><![CDATA[D50]]></kwd>
<kwd lng="en"><![CDATA[Leontief functions]]></kwd>
<kwd lng="en"><![CDATA[efficiency]]></kwd>
<kwd lng="en"><![CDATA[Marginal Rate of Substitution]]></kwd>
<kwd lng="en"><![CDATA[C02]]></kwd>
<kwd lng="en"><![CDATA[C62]]></kwd>
<kwd lng="en"><![CDATA[D01]]></kwd>
<kwd lng="en"><![CDATA[D11]]></kwd>
<kwd lng="en"><![CDATA[D20]]></kwd>
<kwd lng="en"><![CDATA[D50]]></kwd>
</kwd-group>
</article-meta>
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