To reduce migration to the city and to favour local income generation, the Government also introduced the One Tambon-One Product programme in 2001, which provides people with advice and technical assistance for the sale of their home-made products. Finally, in 2005, the Government implemented the Special Purpose Vehicle programme which focuses on the creation of a State enterprise for supporting agricultural activities through the provision of inputs. See Prabhu (2009) for details about the many schemes at the state level. Optimal capital income taxation with incomplete markets, borrowing constraints, and constant discounting. Journal of Political Economy, 103(6): 1158-1175. Social Protection Index for Committed Poverty Reduction.