Based on original household survey on the six villages in Vientiane vicinity in 2005, the paper investigates the impact of Savings and Credit Union (SCU) programs on household income, expenditure and asset, applying the methodology of Coleman's (1999) study on Thailand to address placement bias and endogeneity problem. The results revealed that SCU programs brought certain changes; SCUs boosted educational expenditures implying activation of human capital formation, increased the house asset suggesting villagers' investment reflected by possible business activation, and brought a possible shift in income sources from traditional agriculture to livestock raising. The paper interprets these results different from Coleman's (1999) in two poss...