Defi ne extensive problem-solving, limited problem-solving and routinised response behaviour. What are the differences among the three decision-making approaches? What type of decision process would you expect most consumers to follow in their fi rst purchase of a new product or brand in each of the following areas:

(a) chewing gum,

(b) sugar,

(c) men’s aftershave,

(d) carpeting,

(e) a mobile phone, and

(f) a luxury car? Explain your answers.