“…Additionally, I show the robustness of the positive flight effects to an endogeneity bias by using world heritage sites as an instrument for flight frequencies. The results remain similar after accounting for alternative sector‐level interactions with flights, including a share of technicians or managers, task routineness index (Costinot et al, ), importance of relationship‐specific investments (Nunn, ), and time sensitiveness (Blyde & Molina, ). Taken together, the results support the hypothesis that more frequent passenger flights can lower the FFC costs for FDI decisions.…”