“…Most important, because startups can vary substantially in their underlying quality and their attractiveness to providers of growth-related resources (Stuart, Hoang, and Hybels, 1999), most quantitative accelerator studies have tried to compare nearly admitted startups to recently admitted startups, to control for perceived quality at the time of application (Gonzalez-Uribe and Leatherbee, 2018; Hallen, Cohen, and Bingham, 2020). By comparing untreated firms to firms of perceived similar quality that were treated by different accelerator designs, researchers have found that small differences in accelerators’ organizational design can create dramatic differences in the accelerators’ average level of impact on admitted firms relative to similar firms that did not gain admission (Hallen, Cohen, and Bingham, 2020; Hallen, Cohen, and Park, 2023).…”