Research identifies four types of effective chief digital officers.
The exhibit "The Focus Energy Matrix" identifies four types of behavior: disengagement, procrastination, distraction, and purposefulness.
The Urban Demographics: Where People Live and Work report analysis identifies four types of cities: London, large cities (population of 550,000+), medium cities (230,000- 550,000) and small cities (less than 230,000).
In his book, Sax identifies four types of food trends: cultural (Cosmopolitans), agricultural (heirloom tomatoes), chef-driven (Cajun spice, via Paul Prudhomme), and health-driven ("superfoods," like açai berries).
The report identifies four types of barriers facing women and minority entrepreneurs: recruitment, selection biases, program design and culture.
This paper identifies four types of approach to determine when/how to push recommendations to mobile user with minimum intrusiveness.
As a result, the study identifies five types of market-shaping actions.
The Dutch domestic intelligence service recently published a study of jihadist recruitment in the Netherlands, which identifies three types of personalities that can be found in extremist cells.
Lego identifies five types of play – physical, symbolic, with rules, with objects, and pretence – and points to the variety of skills developed through each.
