This Harvard Business Review collection opens by establishing emotional intelligence as a genuinely learnable business capability with measurable impact on leadership effectiveness, rather than a fixed personality trait some leaders simply possess.

Why this learnable-capability framing matters for business application:

• Treating emotional intelligence as fixed and innate would discourage deliberate organizational investment in developing it among existing leaders
• Multiple contributors across this collection present evidence and frameworks supporting emotional intelligence as genuinely developable through deliberate practice and feedback
• This framing provides the foundation for the collection's subsequent practical guidance on developing these capabilities within organizational contexts

This opening establishes the collection's core premise, drawn from multiple expert contributors across different specific emotional intelligence domains.