<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>9883</termId><termName>Ley de la oferta y la demanda</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>Tesauro</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Ley de la oferta y la demanda</termSortkey><termNote label="Registro Aleph"><![CDATA[ 8722 ]]></termNote><termCreatedDate>Ley de la oferta y la demanda</termCreatedDate><relation><relationType>BT</relationType><termId>3218</termId><termName>Economía</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>9882</termId><termName>Demanda de capital</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>9884</termId><termName>Demanda de mano obra</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>9886</termId><termName>Demanda de mercancías</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>17062</termId><termName>Oferta de capital</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>17063</termId><termName>Oferta de mano de obra</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>17064</termId><termName>Oferta de mercancías</termName><termType>PT</termType></relation></term>  </Zthes>