<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Karagiannis, Giannis</style></author><author><style face="normal" font="default" size="100%">Mergos, G</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Estimating theoretically consistent demand systems using cointegration techniques with application to Greek food data</style></title><secondary-title><style face="normal" font="default" size="100%">Economics Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Cointegration</style></keyword><keyword><style  face="normal" font="default" size="100%">Demand systems</style></keyword><keyword><style  face="normal" font="default" size="100%">Homogeneity</style></keyword><keyword><style  face="normal" font="default" size="100%">Symmetry</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2002</style></year></dates><number><style face="normal" font="default" size="100%">2</style></number><volume><style face="normal" font="default" size="100%">74</style></volume><pages><style face="normal" font="default" size="100%">137-143</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record></records></xml>