what is marketing and its roles?

Answer 1

To show why we would want something.
You may have a grand new product but I wouldn't be going to the store to get it even if I know where it is sold, what the price is and that it is a bargain at that price.
For example in about 1980 I wanted a computer but I didn't know what they could do or why I might want one. I had one programming class in 1974 but it didn't really address what it could do for a person. We didn't have them at work yet and when we did it was accounting, payroll and depreciation programs nothing I would want at home.
I went in a computer store and asked what they could do and the boy said whatever you want them to do.
Within a couple of years mom got a computer as a gift from dad and he said she could keep her recipes in it and a record of her car maint. She played backgammon with it instead and never learned to program. Now she plays casino games on her computer.
A marketing master could have sold us the uses for a computer and we might have been out buying them years sooner.
Take the computer game Wii we all saw the ads that it was coming but I never considered wanting one because I didn't know what it did. Once I saw one I thought they were really neat and would have bought one for any kid I was buying gifts for.