Diversity in engineering usually gets argued on principle, which is fine, but it leaves the business case murky. So let's be honest about the business case: the headline studies point one way, they've been challenged, and the argument that actually holds up is simpler than any of them.
Key Takeaways
- McKinsey found top-quartile companies for ethnic diversity 36% more likely to outperform on profitability (McKinsey).
- BCG found firms with above-average leadership diversity earned 19 percentage points more of their revenue from innovation (45% vs 26%) (BCG).
- Those correlations have been challenged in replication, so treat them as suggestive, not settled (Econ Journal Watch).
- The uncontested benefit: a wider talent pool simply lets you hire better people.
What the Research Says, Honestly
Two big studies point the same direction. McKinsey's "Diversity Wins," covering over 1,000 companies, reported that top-quartile-for-ethnic-diversity firms were 36% more likely to have above-average profitability (McKinsey). BCG, surveying 1,700 companies across eight countries, found that firms with above-average diversity on their management teams earned 19 percentage points more of their revenue from innovation, 45% versus 26% for less diverse companies (BCG).
Now the honest part, because it would be cheap to stop there. The McKinsey profitability link in particular has been challenged: replication attempts questioned whether it holds up under scrutiny (Econ Journal Watch). So "diversity directly drives profit" is suggestive, not proven, and anyone selling it as settled science is overselling.
The Argument That Doesn't Depend on the Debate
Set the correlation studies aside and a simpler case remains, and it's genuinely hard to argue with: the more places you're willing to hire from, the larger and better your candidate pool. A team that only recruits from one city, one background, or one country is choosing from a fraction of the available talent. Widening the aperture means more strong candidates for every role. That's not ideology; it's arithmetic.
| Narrow hiring | Wide hiring |
|---|---|
| One city / background / country | Global pool |
| Smaller candidate set | Larger, stronger set |
| Groupthink risk | More perspectives |
A Concrete Version
Say a strong senior engineer for your stack is a 1-in-500 profile in the general developer population. If you only hire from one metro with, say, 20,000 developers, that's about 40 people who fit, and you're fighting every other local company for them. Open the search to Latin America and the eligible pool grows by orders of magnitude. You're not lowering the bar; you're widening the funnel above it, so more people clear the same bar. The profitability studies can be as debated as you like, and this still works.
Where Global Hiring Fits
This is the least controversial reason global and nearshore hiring works: it widens the pool. When you hire senior engineers across Latin America instead of only your local market, you're choosing from a far larger set of strong candidates, exactly the talent depth we described in the state of LATAM engineering talent. You don't need any of the profitability research to hold for that to be a real edge. See available engineers.
Frequently Asked Questions
Does diversity improve engineering performance?
McKinsey and BCG both found diverse companies more likely to outperform (on profit and on innovation revenue respectively), but the profitability correlation has been challenged in replication work. Treat the direct-performance claim as suggestive rather than settled.
What's the strongest business case for diverse hiring?
A wider talent pool. Recruiting from more backgrounds and geographies gives you more strong candidates for every role, which is arithmetic, not ideology, and doesn't depend on any contested study.
How does global hiring relate to this?
It widens the pool by default. Hiring senior engineers across a region like Latin America means choosing from far more strong candidates than a single local market offers.
The Bottom Line
The diversity-drives-performance research is real but debated, so don't hang your case on it. Lead with the argument that needs no defense: a wider talent pool means better hires. Global and nearshore hiring widens that pool, and that advantage stands on its own.
Roberto Espinoza is CEO of Ruzora, which helps US startups hire pre-vetted senior LATAM engineers in 72 hours. See available engineers.
