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Mean Absolute Percentage Error (MAPE) Has Served Its Duty and Should Now Retire

BlueYonder

According to Gartner (2018 Gartner S ales & O perations P lanning Success Survey ), the most popular evaluation metric for forecasts in Sales and Operations Planning is Mean Absolute Percentage Error (MAPE). The US GPD is much larger than Tuvalu’s, but one would consciously, and for good reasons, decide to treat them equally.