At the end of the paper, they mention "three factors over which the crowdfunding founder has complete control: the goal, the number of reward options and the du

At the end of the paper, they mention "three factors over which the crowdfunding founder has complete control: the goal, the number of reward options and the duration. To maximize the likelihood of success, Fig. 1 implies that all other things being equal, a founder should choose a Log(goal) which is less than 7, a number of reward options which is at least 40 and a duration of between 10 and 15 days."