With economic tools, people change their behaviour because the want to achieve maximal benefit at minimal cost. Economic tools involve the use of prices and other market-based instruments to provide monetary incentives to change behaviour.
Perspectives are different frameworks from which to explore the knowledge around sustainable sanitation and water management. Perspectives are like filters: they compile and structure the information that relate to a given focus theme, region or context. This allows you to quickly navigate to the content of your particular interest while promoting the holistic understanding of sustainable sanitation and water management.