Two restaurant owners both report $100,000 in accounting profit. One works 30 hours a week and has $200,000 of her own capital invested. The other works 70 hours a week and has $800,000 invested. Their accounting profits look identical. Their economic situations are completely different — because economic profit accounts for what each owner gave up by running the restaurant rather than pursuing alternatives.
The formula
Economic Profit = Total Revenue – Explicit Costs – Implicit Costs
Accounting Profit = Total Revenue – Explicit Costs
Economic Profit = Accounting Profit – Implicit Costs
For the second restaurant owner above:
- She could earn $100,000 per year in an employed management position working 40 hours per week (implicit labor cost, prorated for 70 vs. 40 hours: ~$175,000)
- Her $800,000 could earn 8% in a diversified portfolio: $64,000 per year
- Total implicit costs: approximately $239,000
- Economic profit: $100,000 – $239,000 = –$139,000
The restaurant is destroying economic value even though it's profitable on paper.
Reading the result
Positive economic profit: the firm is earning above competitive returns — it has a durable advantage (brand, proprietary technology, cost structure, regulatory moat). This attracts new entrants and imitators. Over time, competition erodes positive economic profit toward zero unless the advantage is protected.
Zero economic profit (normal profit): the firm is covering all costs including opportunity costs. It is earning exactly the competitive rate of return. This is the long-run equilibrium of perfectly competitive markets — firms have no incentive to enter or exit. Zero economic profit is not failure; it is optimal allocation.
Negative economic profit: the firm is earning below competitive returns. Resources would be more productive elsewhere. The firm should exit or restructure in the long run.
The Bureau of Economic Analysis corporate profits data measures accounting profit. Economic profit requires adjusting for the implicit cost of equity capital — which financial analysts approximate as the difference between return on invested capital (ROIC) and the weighted average cost of capital (WACC). Industries where ROIC consistently exceeds WACC — software, pharmaceuticals, consumer brands — are generating persistent economic profit. Industries where ROIC hovers near WACC are earning normal profits.
Worked example
A software firm earns $20 million in accounting profit on $100 million in invested capital: a 20% accounting return. Its WACC (the opportunity cost of that capital) is 12%. Economic profit: (20% – 12%) × $100M = $8 million. The firm is genuinely creating value above its cost of capital.
A retail chain earns $5 million in accounting profit on $120 million invested: a 4.2% return. Its WACC is 8%. Economic profit: (4.2% – 8%) × $120M = –$4.56 million. Despite positive accounting profit, the chain is destroying shareholder value at a rate of $4.56 million per year.
Why it matters
Economic profit analysis separates businesses that create value from those that merely generate revenue above cash costs. It is the right benchmark for investment decisions, capital allocation, and competitive strategy evaluation — and the reason the most rigorous financial analysis focuses on return on capital relative to its cost rather than headline accounting profit.
