Administración y Control de Inventarios.

Abstract

The inventory represents a most important production companies, services or other commercial investment. This investment is usually larger than it should be because the Directorate of them find it easier to take inventory “just in case” that inventory “just in time. In this article, we discuss the independent demand inventory and present the model Economic Order Quantity (EOQ). Which seeks to determine by quantitative equality of ordering costs and maintenance costs the lowest possible total cost. This method (EOQ) as a mathematical model allows for the order size that minimize the total costs associated with inventory, determine the time to be replenished or starting a new production batch, this is usually given in units so in the time when the physical inventory reaches a specific number of units should order or start production. The probabilistic model applies when product demand is not constant but may be defined by a probability distribution, and the marginal analysis takes into consideration the marginal benefit (MP) and the marginal loss (ML), since any level of inventory is added a drive to inventory when its marginal benefit exceeds its marginal loss.