moving average method
Technical term in finance and statistics for a method that uses moving averages to smooth data or calculate costs.
The moving average method is often used for inventory valuation.
移動平均法で需要予測の精度が上がった。
The accuracy of demand forecasting improved with the moving average method.
移動平均 is the moving average itself, while 移動平均法 is the method or technique that uses moving averages.
Compound of 移動 (moving) + 平均 (average) + 法 (method). A straightforward technical term with no obscure historical derivation.