$7\mathrm{.}2.$ Pre$-$prepared Meals

Amazon is dominant in online book retailing, and Way fair is dominant in online furniture retailing. However, the online pre$-$prepared meals segment includes competitors Blue Apron, Cornershop, Instacart, Fresh Direct, Hello Fresh, and Shipt. What cost conditions are consistent with these different market structures?

Each market may have different cost circumstances depending on things like product categories, delivery methods, and the adoption of new technologies.