The results obtained in this research confirm that currently manufacturing for SMEs by the nature of its operational activities, the handling of Supply Chain Management (SCM), is significant in the performance of this type of organizations. Because of that, the answers of the business man were analyzed with the support of polls through a field work, finding that for them, is essential that the SCM considering its complexity and impact in the supply of material resources, which is significantly influence for the manufacturer SMEs to have a bigger performance. This research, of empiric origin,, and with support of the statistic software EQS where the structural equations have been used, permit conclude that the SCM is essential for the manufacturer SMEs performance. For the investigation the sample of 288 enterprises of the state Aguascalientes has been used, obtained between August and December 0f 2013, which contain from 11 to 250 workers.

The aim of the study was to identify factors which describe the profile of economic units (EUs) in Mexico. For this purpose, were