<?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>2011-2106</journal-id>
<journal-title><![CDATA[Revista de Economía del Caribe]]></journal-title>
<abbrev-journal-title><![CDATA[rev. econ. Caribe]]></abbrev-journal-title>
<issn>2011-2106</issn>
<publisher>
<publisher-name><![CDATA[Editorial Universidad del Norte]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2011-21062024000100005</article-id>
<article-id pub-id-type="doi">10.14482/ecoca.33.339.961</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Relationships between economic theory variables and mathematical instruments for assessing competition conditions and market power]]></article-title>
<article-title xml:lang="es"><![CDATA[Relaciones entre las variables de la teoría económica y los instrumentos matemáticos para evaluar las condiciones de competencia y el poder de mercado]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lartigue Mendoza]]></surname>
<given-names><![CDATA[Jacques]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez De La Cruz]]></surname>
<given-names><![CDATA[Salomón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guadalajara  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Anáhuac  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<numero>33</numero>
<fpage>5</fpage>
<lpage>5</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S2011-21062024000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S2011-21062024000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S2011-21062024000100005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The sole existence of a market does not guarantee the maximum level of efficiency and social welfare it can provide through a competitive structure. As a result, a set of theoretical relationships and mathematical instruments have been developed to measure how far existing markets are from being competitive; as well as how much power firms have for setting prices and earn more than they would do in competitive markets. In this line, the current paper discusses and integrates diverse theoretical relationships and mathematical instruments underlying the assessment of competition conditions and market power and exhibits how the estimation of these instruments can be simplified to require only two variables: market shares and the price elasticity of demand.  JEL Classification:  D40; L10; L40]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La sola existencia de un mercado no garantiza el máximo nivel de eficiencia y bienestar social que este puede alcanzar a través de una estructura competitiva. Como resultado, se han desarrollado un conjunto de relaciones teóricas e instrumentos matemáticos que permiten cuantificar qué tan lejos están los mercados existentes de ser competitivos, así como cuánto poder tienen las empresas para fijar precios y ganar más de lo que obtendrían en mercados competitivos. En este sentido, el presente documento analiza e integra diversas relaciones teóricas e instrumentos matemáticos que sustentan la evaluación de las condiciones de competencia y el poder de mercado, y muestra cómo la estimación de estos instrumentos se puede simplificar para requerir solo dos variables: participaciones de mercado y elasticidad precio de la demanda.  Clasificación JEL:  D40; L10; L40]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Competition conditions]]></kwd>
<kwd lng="en"><![CDATA[market power]]></kwd>
<kwd lng="en"><![CDATA[market concentration]]></kwd>
<kwd lng="en"><![CDATA[competitive markets]]></kwd>
<kwd lng="es"><![CDATA[Condiciones de competencia]]></kwd>
<kwd lng="es"><![CDATA[poder de mercado]]></kwd>
<kwd lng="es"><![CDATA[concentración de mercado]]></kwd>
<kwd lng="es"><![CDATA[mercados competitivos]]></kwd>
</kwd-group>
</article-meta>
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