<?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>S0186-72022018000100003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Impacto de las modificaciones en el proceso de portabilidad numérica sobre los servicios de telecomunicación móvil]]></article-title>
<article-title xml:lang="en"><![CDATA[The impact on telecommunications services of modifications to mobile number portability in Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escobar Briones]]></surname>
<given-names><![CDATA[Rebeca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Federal de Telecomunicaciones  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>33</volume>
<numero>1</numero>
<fpage>3</fpage>
<lpage>28</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0186-72022018000100003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0186-72022018000100003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0186-72022018000100003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los costos de traspaso y los efectos de red pueden disuadir la competencia en los mercados de telecomunicaciones al crear un efecto encierro que reduce la movilidad de los consumidores entre los diferentes operadores. El tema ha sido investigado en el contexto internacional, pero hasta el día de hoy las conclusiones no han sido unánimes; además, en países como México, la investigación es escasa. El análisis aporta una estimación de los costos de traspaso para México en el periodo 2007-2016. Asimismo, se evalúa el impacto de los costos de traspaso decrecientes sobre la movilidad de los consumidores y la concentración de mercado, y se encuentra que tienen un efecto favorable.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Switching costs and network e&#64256;ects can deter competition in telecommunications markets, as they create a lock-in e&#64256;ect that reduces the mobility of consumers between operators. The sub ject has been studied in the international context, but their conclusions are not unanimous to-date, and are scarce when it comes to countries like Mexico. This study provides an estimate of the costs of handover in Mexico for the period from 2007 to 2016. The impact of diminishing switching costs on consumer mobility and market concentration is evaluated and found to have a favorable e&#64256;ect.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="es"><![CDATA[costos de traspaso]]></kwd>
<kwd lng="es"><![CDATA[competencia]]></kwd>
<kwd lng="es"><![CDATA[portabilidad numérica]]></kwd>
<kwd lng="es"><![CDATA[mercado de telecomunicaciones móviles]]></kwd>
<kwd lng="en"><![CDATA[switching costs]]></kwd>
<kwd lng="en"><![CDATA[competition]]></kwd>
<kwd lng="en"><![CDATA[number portability]]></kwd>
<kwd lng="en"><![CDATA[mobile telecommunications market]]></kwd>
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