This issue marks the start of the 50th volume of Management Science. As is customary on such ‘round number’ occasions, we will be taking time for a bit of retrospective review and soul-searching speculation. We begin here with an overall assessment of the journal's performance relative to its original mission. In subsequent articles, which will appear in issues throughout Volume 50, we will take more detailed disciplinary looks at the past, present, and future of Management Science and the management subfields it represents.