Assume you are six weeks into your twelve$-$week summer MBA internship in San Diego, California rotating through PepsiCo Chief Marketing Officer Caroline Lee's organization. The experience, learning, and culture at PepsiCo so far has exceeded your expectations and you are excited about the prospect of earning an offer for a full$-$time role to start $30$ days after your Kellstadt graduation ceremony. For the next three weeks you report to Marcus Mumford who leads PepsiCo's Consumer Analytics and Behavior team. When you arrived to work this morning, Marcus assigned you responsibility to lead a small team of four other MBA interns in the creation of a report detailing PepsiCo's most recent research and insight specific to the behavior of PepsiCo's consumer customers across the more than $150$ countries PepsiCo does business in currently. You have two weeks to complete the report before presenting the key findings and recommendations in$-$person to Caroline's extended CMO leadership team including representatives from PepsiCo Product Development, Finance, Sales, and Corporate Strategy. Marcus asked you to include on the first page of your report a definition and model for consumer behavior. What will you include? Please provide a short answer in the space below.