Job search is generally described by an intensive effort margin such as the number of applications sent or of hours devoted. Using rich online job board data and a novel network method to determine relevant sets of ads for each applicant, we also investigate the job search selective margin, i.e. why workers apply to or
We derive the optimal concession contract for an airport where the concessionaire’s effort impacts either non-aeronautical revenue (shops, restaurantes, parking lots and hotels) or aeronautical revenues (passenger and airline fees). Our first model assumes that demand for the infrastructure is exogenous whereas demand for non-aeronautical services depends both on passenger flow and on the concessionaire’s