After carefully examining the story of Hemingway’s Fifty Grand, this article concludes that like Frederick Henry, Jack Brennan is a man of both courage and integrity regardless of the assertion that he fixed the fight and arranged with the gamblers prior to the fight in order to win the bet.
Tackach, James, "Whose fix is it anyway?: a closer look at Hemingway’s Fifty Grand" (2000). Feinstein College of Arts & Sciences Faculty Papers. Paper 6.