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How long does ZBB typically take compared with incremental budgeting? How does ZBB affect employee behavior and morale? How does ZBB support cost management and strategic reallocation? How does ZBB relate to activity-based budgeting? How can ZBB be combined with continuous improvement or lean thinking? What are the risks of ZBB being reduced to a cost-cutting exercise? How do modern 'ZBB 2.0' approaches use technology and data? How do you sustain the benefits of ZBB over time? How does ZBB interact with strategic priorities during ranking? What governance is needed to make ZBB effective and lasting?
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How does ZBB improve resource allocation compared with incremental budgeting?

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By forcing every activity to justify its cost and ranking activities by value, ZBB directs funds to the highest-value uses and cuts low-value legacy spending, rather than incremental budgeting's automatic continuation of last year's allocations plus a uniform uplift. It reallocates rather than perpetuates, aligning spend with current priorities.
Real-world example ZBB shifts funds from a low-value legacy report to a high-priority customer initiative.

Common follow-ups: How does incremental allocation differ? | What does ZBB align spend with?

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All 34 Zero-Based Budgeting questions