Marketing research expert witnesses may write reports and testify on market studies, market defense, marketing channels, marketing effectiveness, and related topics. The American Marketing Association is the professional association for individuals and organizations who are leading the practice, teaching, and development of marketing worldwide. The AMA website offers a dictionary which includes the definition of Marketing Research:
Marketing research is the function that links the consumer, customer, and public to the marketer through information–information used to identify and define marketing opportunities and problems; generate, refine, and evaluate marketing actions; monitor marketing performance; and improve understanding of marketing as a process. Marketing research specifies the information required to address these issues, designs the method for collecting information, manages and implements the data collection process, analyzes the results, and communicates the findings and their implications.
Read more: marketingpower.com.