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En cas de modification des salaires et/ou de taux de change, trois cas sont possibles :<br />

1. si e = w 1 /w 2 , a i1 /a i2 =w 1 a i1 /ew 2 a i2 et a j1 /a j2 = w 1 a j1 /ew 2 a j2, c’est-à-direqueles coûts<br />

sectoriels relatifs restent inchangés ;<br />

2. si e >w 1 /w 2 , nous aurons w 1 a i1 /ew 2 a i2

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