With more than 200 researchers from 62 countries studying more than 17,000 mid-level managers in the initial phases, the 2004 study is the largest and most prestigious study of its kind in the social sciences. In the latest 2014 study, more than 70 researchers collected data from over 100 CEOs and 5,000 senior executives in corporations in a variety of industries in 24 countries. This study demonstrated the considerable influence of culture on societal leadership expectations and the importance of matching CEO behaviors to expectations for leadership effectiveness. The latest ongoing GLOBE study ("GLOBE 2020") offers a unique large-scale look at cultural practices, leadership ideals, and generalized and interpersonal trust in 150 countries in collaboration with nearly 500 researchers.