<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342020000501179</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v11i5.1819</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis dual del comportamiento del sector primario en México 1980-2020]]></article-title>
<article-title xml:lang="en"><![CDATA[Dual analysis of the behavior of the primary sector in Mexico 1980-2020]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Terrones Cordero]]></surname>
<given-names><![CDATA[Aníbal]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Damián]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Torres]]></surname>
<given-names><![CDATA[Yolanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo Campus la Concepción Instituto de Ciencias Económico Administrativas]]></institution>
<addr-line><![CDATA[San Agustín Tlaxiaca Hidalgo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Montecillo Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2020</year>
</pub-date>
<volume>11</volume>
<numero>5</numero>
<fpage>1179</fpage>
<lpage>1187</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342020000501179&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342020000501179&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342020000501179&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La presente investigación analizó la actividad productiva del sector primario en México durante el periodo 1980-2016, con predicción hacia 2020. Se empleó una función de costo translog para estimar las demandas de los insumos: mano de obra, maquinaria, fertilizantes nitrogenados y crédito de la banca de desarrollo. Fueron considerados precios y cantidades de cada uno de los insumos y del producto interno bruto primario en valores reales base 2013. Se calcularon las elasticidades Allen-Uzawa, los cuatro insumos resultaron inelásticos, siendo la mano de obra el más importante en la estructura de costos, representando 52.7%. Los tractores y fertilizantes presentaron complementariedad con la mano de obra, el crédito de la banca de desarrollo mostró una relación de sustitución con los demás insumos, indicando que las tasas de interés cobradas son altas y ocasionan que el productor disminuya la demanda del crédito. La actividad primaria demanda aumentos de tractores, fertilizantes y mano de obra de por lo menos 2.8, 2.3 y 2.2%, respectivamente para 2020.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The present investigation analyzed the productive activity of the primary sector in Mexico during the period 1980-2016, with prediction towards 2020. A translog cost function was used to estimate the demands of the inputs: labor, machinery, nitrogen fertilizers and credit of development banking. Prices and quantities of each of the inputs and of the primary gross domestic product were considered in 2013 real base values. The Allen-Uzawa elasticities were calculated, the four inputs were inelastic, with labor being the most important in the cost structure, representing 52.7%. Tractors and fertilizers were complementary to labor, the credit from the development bank showed a substitution relationship with the other inputs, indicating that the interest rates charged are high and cause the producer to decrease the demand for credit. Primary activity requires increases in tractors, fertilizers and labor of at least 2.8, 2.3 and 2.2%, respectively, by 2020.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[demanda de insumos]]></kwd>
<kwd lng="es"><![CDATA[elasticidades Allen-Uzawa]]></kwd>
<kwd lng="es"><![CDATA[función dual]]></kwd>
<kwd lng="en"><![CDATA[Allen-Uzawa elasticities]]></kwd>
<kwd lng="en"><![CDATA[dual function]]></kwd>
<kwd lng="en"><![CDATA[input demand]]></kwd>
</kwd-group>
</article-meta>
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