Final answer:
The team leader style that displays an authoritarian approach and emphasizes performance and production is the autocratic style. This leadership is top-down and directive, often useful in situations requiring quick decisions.
Step-by-step explanation:
The leadership style characterized by an authoritarian approach, with a focus on performance and production where communication tends to flow from the top down, is the autocratic style. Autocratic leaders issue orders and assign tasks, often with little to no input from team members. This style can be effective when decisions need to be made quickly or when they are informed by a specific level of expertise that the leader possesses. However, it carries the risk of alienating team members due to its one-way communication and top-down approach.