Inventarios, Benchmark

How Much Inventory is Enough and Too Much?

This table -- which indicates raw materials inventory levels of IW's Best Plants winners and finalists -- is not meant to identify the optimal level of days-on-hand raw-materials inventory. Too many factors can influence what makes sense for any individual manufacturer. That said, manufacturers should be asking, 'Am I carrying extra inventory because my suppliers are failing to deliver on time? Could I find a closer supplier that would allow me to reduce the level of inventory I keep on hand? Is my buffer this large because I can't trust my own processes?'

Average days of raw materials inventory
Year Median Average Minimum Maximum
2008 20.1 24.3 3.0 98.0
2009 20.1 29.7 2.6 109.0
2010 22.4 33.5 2.0 104.0
2011 21.9 33.5 3.2 138.0
2012 26.0 28.0 2.0 78.0
2008-2012 21.5 29.4 2.0 138.0

Source: 2012 IW Best Plants Statistical Profile

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