Budgeting & Forecasting › Variance Analysis

How can variance analysis mislead in a JIT or lean environment?

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Answer

In JIT/lean settings, traditional variances can encourage wrong behavior: a favorable purchase-price variance may push bulk buying against JIT principles; efficiency variances may encourage overproduction to absorb overhead. Lean emphasizes flow, quality, and pull, so metrics beyond standard variances (throughput, quality, on-time delivery) are more appropriate.
Real-world example Chasing a favorable price variance by bulk-buying undermines the JIT goal of minimal inventory.

Common follow-ups: How can efficiency variances cause overproduction? | What metrics suit lean better?