Previous research indicates a positive relationship between exports from a state and its promotional expenditures. In the third article in this Review, “The Competitive Nature of State Spending on the Promotion of Manufacturing Exports,” Cletus C. Coughlin examines the related issue of whether a state’s exports are affected by the promotional expenditures of other states. The author finds some evidence that exports from one state are affected negatively by the promotional expenditures of other states; however, data limitations and the sensitivity of results to different measures of promotional expenditures by other states preclude a definitive conclusion.