Maybe you can refer to the publications of each professor in each top 20 business school in each research area to find out the top journals. I don't know much about Finance, Economics or Strategy Management, but departments such as Marketing, OM, MIS, Logistics, MS pay most attention on journals issued by INFORMS. Also, here's an URL of the ranking of buz schools in NA released by UT Dallas. It cites some of the most sigfinicant academic journals in Buz as criteria. http://citm.utdallas.edu/utdrankings/rankingbydate.aspx