Analysis of the relationship between habits and acceptance of the 9’s as a competitiveness factor in manufacturing SMEs in Aguascalientes Journal title: Revista CEA Authors: Octavio Hernandez-Castorena, Monica Colín-Salgado, Noe Velasquez-Espinosa Subject(s): Economics, Management Science/Operations Research, Banks and Banking, Finance and Financial Services, Marketing, Management Science, Accounting