Which brand collaboration strategy has historically shown the highest average ROI according to McKinsey's 2022 Retail Collaboration Index?

Brand collaborations have revolutionized retail marketing in recent years. From unexpected partnerships that generated massive buzz to strategic alliances that opened new market segments, these collaborations represent a sophisticated approach to consumer engagement. This question explores one of the most financially successful brand collaboration models in modern retail history.

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Luxury + Streetwear crossovers (e.g., Louis Vuitton x Supreme)
Tech + Fashion integrations (e.g., Apple Watch x Hermès)
Limited-edition CPG partnerships (e.g., Oreo x Pokemon)
Complementary lifestyle brand pairings (e.g., Lululemon x Barry's Bootcamp)