<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662024000100117</article-id>
<article-id pub-id-type="doi">10.15174/au.2024.4064</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis de simetría en la transmisión de precios de mercado del frijol negro en México: casos Zacatecas y Ciudad de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Analysis of symmetry in the transmission of market prices for black bean in Mexico: the cases of Zacatecas and Mexico City]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar-López]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Andrade]]></surname>
<given-names><![CDATA[Salvador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Tecnológico Nacional de México División de Ingeniería en Gestión Empresarial ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,El Colegio de la Frontera Norte Departamento de Estudios Económicos ]]></institution>
<addr-line><![CDATA[Tijuana Baja California]]></addr-line>
<country>México</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>34</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662024000100117&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662024000100117&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662024000100117&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En México, el frijol (Phaseolus vulgaris) juega un papel preponderante como fuente de proteína vegetal de bajo costo. Entre las variedades disponibles domésticamente, el frijol negro representa una gran proporción del total del consumo de esta legumbre. El presente artículo analiza la simetría en la transmisión de precios del frijol negro bola en los casos de Zacatecas (principal productor) y Ciudad de México (principal centro de consumo). El análisis se realizó usando dos series de tiempo que abarcan desde agosto de 2005 hasta septiembre de 2023. Dos pruebas estadísticas indican la presencia de cointegración entre los precios, mientras que los resultados de modelos autorregresivos de umbrales (TAR, por sus siglas en inglés) y de impulso (MTAR) sugieren simetría en la velocidad de ajuste entre los precios en una relación de equilibrio de largo plazo. La elasticidad de la transmisión de precios de Zacatecas a Ciudad de México se estimó en 0.8627%, ceteris paribus.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In Mexico, the dry bean (Phaseolus vulgaris) plays a leading role as a source of low-cost vegetable protein. Among the varieties available nationally, black beans represent a large proportion of the total consumption of this legume. This paper analyzes the symmetry in the price transmission of black &#8220;bola&#8221; beans in the cases of Zacatecas (main producer) and Mexico City (main consumer center). The analysis was carried out using two time series spanning from August 2005 to September 2023. Two statistical tests indicate the presence of cointegration between prices, while the results of the threshold autoregressive (TAR) and momentum threshold autoregressive (MTAR) models suggest symmetry in the speed of adjustment between prices in a long-run equilibrium relationship. The elasticity of price transmission from Zacatecas to Mexico City was estimated at 0.8627%, ceteris paribus.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cointegración]]></kwd>
<kwd lng="es"><![CDATA[modelo autorregresivo de impulso]]></kwd>
<kwd lng="es"><![CDATA[modelo autoregresivo de umbrales]]></kwd>
<kwd lng="es"><![CDATA[Phaseolus vulgaris]]></kwd>
<kwd lng="en"><![CDATA[Cointegration]]></kwd>
<kwd lng="en"><![CDATA[momentum threshold autoregressive model]]></kwd>
<kwd lng="en"><![CDATA[threshold autoregressive model]]></kwd>
<kwd lng="en"><![CDATA[Phaseolus vulgaris]]></kwd>
</kwd-group>
</article-meta>
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