<?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>0185-1667</journal-id>
<journal-title><![CDATA[Investigación económica]]></journal-title>
<abbrev-journal-title><![CDATA[Inv. Econ]]></abbrev-journal-title>
<issn>0185-1667</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Economía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-16672005000300015</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The Theory of Economic Change: A Comparative Study of Marshall and the &#8220;Classics&#8221;]]></article-title>
<article-title xml:lang="es"><![CDATA[La teoría del cambio económico: un estudio comparativo de Marshall y los "Clásicos"]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corsi]]></surname>
<given-names><![CDATA[Marcella]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,CEU Department of Economics and Business ]]></institution>
<addr-line><![CDATA[Roma ]]></addr-line>
<country>Italy</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2005</year>
</pub-date>
<volume>64</volume>
<numero>253</numero>
<fpage>15</fpage>
<lpage>42</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-16672005000300015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-16672005000300015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-16672005000300015&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This paper deals with two alternative answers to Smith's question 'What are the causes of the Wealth of Nations?' On the one hand, Marshallian equilibrium theory focuses on static increasing returns and assumes that the conditions of production and the demand for a commodity can be considered, in respect to small variations, as being practically independent. On the Other hand, in a classical perspective, economic progress consists of a cumulative and self-perpetuating process of change: established positions are constantly under pressure because the division of labour is at once a cause and an effect of economic progress.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este trabajo trata de responder a dos cuestiones alternativas a la pregunta de Smith ¿cuáles son las causas de la riqueza de las naciones? Por una parte, la teoría del equilibrio marshaliano se enfoca sobre un incremento del beneficio estático y asume que las condiciones de la producción y la demanda para un bien pueden ser consideradas, respecto a pequeñas variaciones, como dadas prácticamente independientes. Por otra parte, en un perspecúra clásica, el progreso económico consta de un proceso de cambio acumulativo y autoperpetuo: las posiciones establecidas están constantemente bajo presión porque la división del trabajo es inmediatamente una causa y un efecto del progreso económico.]]></p></abstract>
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