FA-301e · Module 1

Opportunity Cost Framework

3 min read

Every dollar allocated to one function is a dollar unavailable to another. The opportunity cost of a $500K event sponsorship is not just $500K — it is the $500K that could have funded 3 additional BDRs generating $1.8M in pipeline, or 6 months of a product feature that increases retention by 2 points. Opportunity cost is invisible in traditional budgeting because each line item is evaluated in isolation. The framework forces you to evaluate every allocation against its best alternative use.

Budget Decision: $500K Available
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Option A: Event sponsorship (4 events)
  Expected pipeline: $1.2M
  Expected revenue: $264K  (22% win rate)
  ROI: 0.53x
  Payback: 23 months

Option B: 3 additional BDRs (9-month investment)
  Expected pipeline: $1.8M
  Expected revenue: $504K  (28% win rate)
  ROI: 1.01x
  Payback: 12 months

Option C: Product feature (retention improvement)
  Expected retained ARR: $680K  (2pp retention)
  Expected revenue: $680K
  ROI: 1.36x
  Payback: 9 months
──────────────────────────────────────────────────────

Option C generates 2.6x the value of Option A.
The opportunity cost of choosing events is $416K
in foregone retained revenue.

Do This

Evaluate every significant allocation against its best alternative use
Calculate opportunity cost explicitly: "By choosing X, we are giving up Y"
Rank competing investments by ROI and payback period in a single view

Avoid This

Evaluate each budget line item in isolation without comparing alternatives
Fund "strategic" investments without quantifying what the same budget could produce elsewhere
Assume sunk costs justify continued investment — "we already spent $200K on this" is not a reason to spend more