we are going to prepare a scientific paper about the title above depending on the survey. the first thing we should paper is the literature review of the paper,should speak about how the customer select between the product in the market, .test, price, availability in the market
.. everyone should support by reference or references. to make the survey from these ideas. then we will speak about the model for distortion companies should use. for example, customers prefer food products with lower prices .what company should do to meet the customer expectation for this factor and so on . of course support by reference.
references should be recently published and from journals with impact factors . and I need all references PDF or word
