›the collection and study of information about what people prefer to buy, how they react to advertising, and what other businesses in the same industry are doing: carry out/do/perform market researchCarrying out market research showed that customers thought our phones were too heavy and too ugly.market research on sthWe did market research on the buying habits of single mothers.a market research interview/questionnaire/surveyMarket research surveys of teenagers revealed that what they most wanted was control over all the devices in their lives.a market research company/firm/groupA market research firm handles our focus groups.