<?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>2448-8402</journal-id>
<journal-title><![CDATA[Ensayos. Revista de economía]]></journal-title>
<abbrev-journal-title><![CDATA[Ens. Rev. econ.]]></abbrev-journal-title>
<issn>2448-8402</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma de Nuevo León, a través de la Facultad de Economía con la colaboración del Centro de Investigaciones Económicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-84022024000100019</article-id>
<article-id pub-id-type="doi">10.29105/ensayos43.1-2</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Impacto del Covid-19 y variables macroeconómicas en la capitalización de las empresas del IPC35 por sector: panel con FMOLS y DOLS]]></article-title>
<article-title xml:lang="en"><![CDATA[Impact of Covid-19 and Financial Variables on the Capitalization of IPC35 Companies by Sector: Panel FMOLS and DOLS]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sosa Castro]]></surname>
<given-names><![CDATA[Magnolia Miriam]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz Calisto]]></surname>
<given-names><![CDATA[Edgar Segundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabello Rosales]]></surname>
<given-names><![CDATA[María Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Economía ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Políticas y Sociales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Química ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>43</volume>
<numero>1</numero>
<fpage>19</fpage>
<lpage>50</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-84022024000100019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-84022024000100019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-84022024000100019&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El presente trabajo tiene por objetivo evidenciar el impacto que ha tenido la pandemia (número de contagios) y algunas otras variables clave como: el Índice general y sectorial de EE.UU., el tipo de cambio y el precio del petróleo WTI en los niveles de capitalización bursátil de las empresas que componen el Índice de Precios y Cotizaciones de la Bolsa Mexicana de Valores. Para analizar dicho problema se emplean modelos de datos panel, uno general y seis sectoriales, a partir de las técnicas de: mínimos cuadrados ordinarios dinámicos (DOLS) y mínimos cuadrados ordinarios completamente modificados (FMOLS) para el período marzo 2020-marzo 2021. Los resultados señalan que existe un impacto negativo del Covid-19 y del tipo de cambio para la mayoría de las empresas. En cuanto a las variables índice general y sectorial estadounidense y precio del petróleo, para la mayoría de los sectores, se muestra un impacto estadísticamente significativo y de naturaleza positiva. Con base en lo esperado, los impactos para cada sector son diversos debido a la distinta naturaleza de cada uno de ellos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This article aims to examine the impact of the pandemic (number of contagious) and key financial variables (WTI oil price, exchange rate, US stock indexes) impact on the market capitalization levels of the companies of the Mexican Stock Index IPC35. To achieve that purpose, one general and six sectorial panel data models are displayed, based on the techniques of: Dynamic Ordinary Least Squares (DOLS) and Completely Modified Ordinary Least Squares (FMOLS) for the period March, 2020 - March, 2021. The results suggest that there is a negative impact of Covid-19 and the exchange rate for most of the companies. As for the general and sectoral U.S. index and oil price variables, for most of the sectors, there is a statistically significant and positive impact. Based on what is expected, the impacts for each sector are diverse due to the different nature of each one of them.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="es"><![CDATA[Covid-19]]></kwd>
<kwd lng="es"><![CDATA[Mercado de Capitales]]></kwd>
<kwd lng="es"><![CDATA[Tipo de cambio]]></kwd>
<kwd lng="es"><![CDATA[DOLS]]></kwd>
<kwd lng="es"><![CDATA[FMOLS]]></kwd>
<kwd lng="en"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[Covid-19]]></kwd>
<kwd lng="en"><![CDATA[Stock market]]></kwd>
<kwd lng="en"><![CDATA[Exchange rate]]></kwd>
<kwd lng="en"><![CDATA[DOLS]]></kwd>
<kwd lng="en"><![CDATA[FMOLS]]></kwd>
</kwd-group>
</article-meta>
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