Physical infrastructure investment, such as spending on clean water, sanitation, and health clinics, can reduce women's unpaid care burden. Social infrastructure investment, defined as investment in people’s capabilities, refers to the fundamental social, intellectual, and emotional skills, and health of individuals—or level of human development—a country relies on for its economy to function. Both types have a public goods quality in that they generate positive spillover effects on economy-wide productivity. Financing for gender equality in these areas is more properly seen as an investment that yields an income stream in the future due to the beneficial development and growth effects. As a result, both physical and social infrastructure spending have the ability to create fiscal space.