The document summarizes the managerial grid model developed by Robert Blake and Jane Mouton in 1964. The model identifies 5 leadership styles based on concern for people and production. These styles are: 1) Impoverished leadership (low concern for both people and production). 2) Task management (high concern for production, low for people). 3) Middle of the road (moderate concern for both). 4) Country club (high concern for people, low for production). 5) Team management (high concern for both people and production, seen as most effective style).