Why the relationship between marketer and customer is more and more important?

I Background Nowadays, new products will not be put into operation rashly before the manufacturers get the respondents and potential clients' satisfaction through questionnaires which are about the ideas for the products, including such designed questions like: Whether the respondents like the product or not; if the product is in the market, whether the respondents will be interested in it and take it; what the respondents suggest; whether the product needs some improvements... Those questions …

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