Consider the cost of mediocre vs excellent allocation
Ask not just "is this worthwhile?" but "is this the best use of this resource right now?"
Why it works
Most decisions pass a minimal worth-it threshold: this job is okay, this project is useful, this commitment has value. But opportunity cost thinking asks a second question: given everything this resource could do, is this its best use? The difference between good and excellent allocation is the marginal opportunity cost — the gap between the chosen option and the actual best available alternative.
How to do it
- After any commitment passes the basic "is this worthwhile?" test, ask the harder question: "Is this the best available use right now?"
- List the two or three best alternatives this resource could serve.
- Compare the chosen option not to "worthless alternatives" but to the genuinely best alternative.
- Raise the bar: a "yes" should beat the best alternative, not just the threshold of worth doing.
Evidence
The distinction between adequacy thresholds and optimization is well established in economics and decision theory. Satisficing vs maximizing research (Simon) shows people typically use adequacy thresholds, which is rational in complex environments but can systematically under-allocate resources in simple ones. (mechanistic)
Maximizing against the best alternative has its own costs: analysis paralysis, regret, and missed sufficiency thresholds. The practice is most valuable when choices are few and high-stakes.
Sources
- Simon (1956), rational choice and the structure of the environment, Psychological Review
Common mistake
Treating anything positive as good enough, accumulating a life full of adequate choices that collectively crowd out the small number of truly excellent allocations.
Practice this with IX Coach
7 days free, then $40/month (~$1.30/day).
More practices for Opportunity Cost Thinking: What You Give Up When You Choose
- Always name the specific thing you are giving up
When you say yes to something, say explicitly what you are saying no to.
- Convert time decisions to a common currency
Ask "what is my time worth per hour?" and price time commitments in that currency.
- Price the cost of keeping options open
Maintaining optionality is not free — it costs the value you could have captured by committing.
- Maintain an explicit "no" list for categories of commitments
Pre-commit to declining entire categories of requests so each individual yes is forced to clear a higher bar.
- Distinguish sunk costs from future opportunity costs
What you’ve already spent is irrelevant; what you’ll give up going forward is the only cost that matters.
Related concepts
- The Sunk Cost Fallacy: Escaping Bad Investments
Why past investment traps future decisions — and the practices that escape the trap
- Expected Value Thinking: Deciding Under Uncertainty
The math of rational choice under uncertainty, its real limits, and how to use it anyway
- Essentialism, Made Practical
Less but better — the disciplined pursuit of less, trade-offs, and the mechanisms
- Mental Models: Charlie Munger’s Latticework Approach
Building the multi-disciplinary toolkit that lets you see what single-discipline thinkers miss