Within the Airport Duty‑free Liquor market, product‑type taxonomy differentiates spirits, wine, beer, and liqueurs, each further divided into sub‑categories that influence shelf‑mix and margin structures. Spirits dominate with an estimated 55 % share, split among whiskey, vodka, rum, gin, and tequila; premium whiskey and single‑origin vodka generate the highest per‑unit profitability due to brand equity and limited‑edition releases. Wine contributes roughly 30 % and is segmented into red, white, rosé, and sparkling, where sparkling wines—particularly Champagne—command premium pricing in duty‑free settings. Beer, accounting for 10 %, is categorized into lagers, ales, and craft imports, catering to younger travelers and regional preferences. Liqueurs, the remaining 5 %, include herbal, fruit‑flavored, and cream‑based varieties that often serve as impulse purchases. Understanding this type‑based market taxonomy enables operators to optimize SKU rationalization, align pricing tactics, and forecast demand fluctuations across seasonal travel peaks.