type="main" xml:lang="en"> <p>Policies to deter illegal entry and reduce the number of undocumented immigrants have a complex impact on migration patterns, border crossings, and duration. However, studies generally assume the method of crossing into the United States is exogenous with respect to migration duration. Using data from the Mexican Migration Project, this paper finds that the migrant's decision to hire a coyote (smuggler) to cross the border is endogenous with respect to duration. Instrumental variable estimates provide evidence that migrants who incur the cost of hiring a coyote have longer migration durations as they need to work longer in the United States. The migrants most likely to hire coyotes have less education, little migration experience, and/or come from rural communities. Results suggest that continuing to increase guest worker programs could actually decrease the number of Mexican immigrants in the United States by eliminating the need for coyotes which would reduce migration durations. This would better utilize the immigrant population in the United States by encouraging immigrants to stay while employed and to migrate home when unemployed, with the knowledge they can later return. Reducing coyote use would also reduce income flowing to Mexican cartels which have profited from human smuggling. (JEL O15, J61, J64)
