The types of consumer decision-making processes include routinized response behavior, limited decision making, and extended decision making.
Routinized response behavior occurs when people buy frequently purchased, lowcost items which require little search-and-decision effort. Examples of routinely purchased products include milk, bread, packaged food products, and laundry services.
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Limited decision making occurs when consumers occasionally buy products and when they need to obtain information about an unfamiliar brand in a familiar product category. This type of decision making requires a moderate amount of time for information gathering and deliberation. Purchase decisions might include a new pest control company, a mechanic to install a muffler, or a new "healthy" cereal. Extended decision making is used when a purchase involves unfamiliar, expensive, or infrequently purchased products, such as cars, homes, or stereo systems. Typical impulse products include candy, soda, or a pair of jeans