5. Discussion
The present study adds to conceptual developments related to the breadth and depth of the search space (Knudsen and Srikanth, 2014; Levinthal and March, 1993), and investigates how decisions about search heuristics (Gavetti, 2012; Grandori, 2013; Nickerson and Zenger, 2004) can increase the possibility of identifying novel solutions to problems. Based on the existing search literature (cf. Ahuja and Katila, 2004; Fleming and Sorenson, 2004; Gavetti and Levinthal, 2000; Laursen, 2012), we propose a depiction of search in open innovation represented by a combination of two search dimensions: the search space, which can be either local or distant (Garriga et al., 2013; Laursen and Salter, 2006; Piezunka and Dahlander, 2015), and the search heuristics, which can be either experiential or cognitive (Felin and Zenger, 2014; Sieg et al., 2010; Spradlin, 2012).