Economics: The Open-Access, Open Assessment E-Journal http://www.economics-ejournal.org en Said Tounsi El hadj Ezzahid Aicha El Alaoui Abdelaziz Nihou Key Sectors in the Moroccan Economy: An Application of Input-Output Analysis 2012-11-26 http://www.economics-ejournal.org/economics/discussionpapers/2012-59 JEL C67 JEL D57