<?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>1870-6622</journal-id>
<journal-title><![CDATA[EconoQuantum]]></journal-title>
<abbrev-journal-title><![CDATA[EconoQuantum]]></abbrev-journal-title>
<issn>1870-6622</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guadalajara]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-66222019000200007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sobreprecio por volumen en tiendas de autoservicio en línea en México]]></article-title>
<article-title xml:lang="en"><![CDATA[Quantity surchanges in online grocery stores in Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro Pérez]]></surname>
<given-names><![CDATA[José Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores Curiel]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Economía ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Economía ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>16</volume>
<numero>2</numero>
<fpage>7</fpage>
<lpage>21</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-66222019000200007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-66222019000200007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-66222019000200007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este artículo, estimamos que 11.15% de los productos relevantes tienen sobreprecio por volumen -el precio por unidad de la presentación grande es mayor que el de la presentación chica- en las tiendas de autoservicio en línea del país. Además, empleamos un modelo empírico para someter a prueba varias teorías sobre los factores que lo provocan. Entre otras cosas, encontramos que el sobreprecio por volumen se presenta con mayor probabilidad en los productos refrigerados y con menor probabilidad en los productos de marca de la tienda.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In this article, we estimate that quantity surcharges -the large size has a higher per unit price than the small size- represent about 11% of the relevant products in Mexican on-line grocery stores. In addition, we use an empirical model to test several theories about the factors that cause this practice. Among other things, we find that quantity surcharges are more likely to occur in refrigerated goods and less likely in generic (store brand) goods.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Discriminación de precios]]></kwd>
<kwd lng="es"><![CDATA[negocios en línea]]></kwd>
<kwd lng="es"><![CDATA[sobreprecio por volumen]]></kwd>
<kwd lng="en"><![CDATA[Price discrimination]]></kwd>
<kwd lng="en"><![CDATA[online commerce]]></kwd>
<kwd lng="en"><![CDATA[wholesale pricing]]></kwd>
</kwd-group>
</article-meta>
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