However, those that raise the production costs of environmentally-harmful activities (such as the removal of some subsidies) will help to ensure that future gross domestic product (GDP) growth is on a sustainable path. In both cases reforms generate higher revenues, but only in the case of employment are they likely to significantly improve the budget balance. This is the case of policies that reduce barriers to investment (including foreign direct investments [FDI]), or that reduce private incentives to save, such as extending the coverage and level of social protection.