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The Lean Startup
Chapter 5 · 1 min · 5 of 10

Innovation Accounting

A chapter summary from The Lean Startup by Eric Ries.

Conventional accounting works well for established businesses with predictable revenue. It works poorly for startups because the metrics that matter (validated learning, hypothesis confirmation) are different from the metrics that get measured (revenue, headcount). Innovation accounting is Ries's solution: a measurement framework that captures the learning-dimension progress traditional accounting misses.

The framework has three steps. First, establish a baseline by using an MVP to measure where the business actually is — conversion rates, customer-acquisition cost, retention, lifetime value — even if all the numbers are small. Second, tune the engine — make changes designed to move the metrics in the right direction, and measure whether the changes actually move them. Third, decide whether to pivot or persevere based on whether the tuning is producing meaningful progress.

The metrics in innovation accounting must be actionable (the team can do something about them), accessible (the team can see them), and auditable (they cannot be gamed). Vanity metrics — total users, total downloads, cumulative numbers that only go up — fail all three tests because they cannot be acted on, hidden by aggregates, and gamed by definition changes.

The discipline is harder than it sounds. Teams resist replacing flattering vanity metrics with honest actionable ones. The Lean Startup methodology requires the resistance to be overcome before any of the other techniques can produce reliable results.

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Pivot or Persevere
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