Answer:
Differentiation focus strategy
Step-by-step explanation:
Competitive advantage is defined as the factors or strategy that gives a firm an edge over others in the same industry.
They are able to sell more product and make more profit than their competitors.
Trader Joe's creates a competitive advantage by its ability to incorporate upscale or attractive attributes into its product offerings at lower costs than rivals.
They are using differentiation focus strategy which entails developing a unique product based on selected attributes that are widely valued by customers.
Focus is given to making products that specifically meet these needs.
The result is a product that is unique in the industry. Products from Trader Joe's can't be found anywhere else. Also they provide a unique atmosphere and unique interaction with their staff.
They have been able to have reduced pricing through research and other tactics aimed at reducing cost of production in a sustainable manner.