Civil society institutional conventions. Social conventions may not permit
the full operation of market forces. The buying and selling of some goods
and services will not be allowed. For other goods and services, prices may
only operate within a socially restricted range – common property or
pooled rights over forest or water usually have such characteristics.
• Government regulatory and fiscal actions. Governments intervene to affect
many markets through regulations, taxes and subsidies at regional, national
and international levels. Varying taxes and subsidies on agricultural
products has implications for imputed values of sanitation and water.