• The provision of public goods provision can be directly linked to welfare and poverty : – important examples of public goods for the ci;zenry include: health services, schools, clean water, urban sanita;on, roads, microfinance, etc. • Tradi<onal economic analysis suggests under-‐provision of public goods – stemming from individuals considering only their own costs and benefits associated with contribu;ng, disregarding benefits accrued from others – behavioural / experimental economics suggest that, while individuals do selfish choices, many also sacrifice their own well-‐being for others (i.e. there is significant heterogeneity in social preferences)