However, there is no guarantee whether those positive benefits will occur. In particular, local firms in the host country may or may not benefit from the existence of FDI. In some circumstances, local firms may be worse off after FDI firms enter. The expected positive effects from FDI lead many countries to exert efforts to attract FDI which incurs extremely large costs such as supply of infrastructures, government revenue loss from tax incentives, and the creation of the business environment.