How is interior design is used to influence and manipulate consumers?

How is interior design is used to influence and manipulate consumers?.

How is interior design is used to influence and manipulate consumers? (e.g. retailers & shopping centres to consumers to buy more)

Must demonstrate an awareness of the historical development of architectural theories during the 20th and 21st centuries, making particular reference to the qualities of change between differing critical positions. Must demonstrate knowledge and critical understanding of the key principles of interior design history, theory, and contexts. Must analyse and interpret research findings and communicate these with structured and coherent arguments. 

How is interior design is used to influence and manipulate consumers?