Vertical Product Differentiation: Consumers rank products based on an objective, measurable factor, such as price or quality, and then choose the most highly ranked item.

According to Carol Ann Tomlinson (1999), there are three ways to differentiate a lesson that allow students more choices in their learning by differentiating content, process, or product.

US FAA administrator Steve Dickson expects changes being considered in the wake of the Boeing 737 Max crisis could impact future “grandfathered” certification of derivative aircraft such as ...