This report assesses the number and characteristics of family caregivers, describes existing caregiver support programs, and gauges the potential macroeconomic impact of such programs. Our results show that relatively few caregivers provide intensive care, although these intensive caregivers are most likely to experience significant caregiver burdens and conflict between employment and care responsibilities. We conclude that the macroeconomic benefits of caregiver supports would likely be quite limited. Nearly one-third of family caregivers, and nearly one-half of family caregivers who provide intensive care without help from others, are ages 65 and older, and thus unlikely to work if they did not serve as family caregivers. The available empirical evidence suggests that relatively few younger caregivers would increase their labor supply much if they did not provide care. We found that the increase in earnings and tax revenue that might result from caregiver support programs would fall far short of the cost of providing those services.