 If we don't know the problem, the constraint, the resource, the potential of each family and community, we cannot build a new society for the country. The development process of Vietnam becomes more and more complicated, so we need a comprehensive point of view on every specific area that we want to address. Information and data in Vietnam were very bad. It's very difficult to access to the economic data. We have done two very important surveys. The first one is the survey on rural areas and the survey on private enterprises. Social accounting metrics are data sets that describe interaction between the different entities in the economy. We've implemented the Vietnam Access to Resources Household Survey. Masses every second year surveyed more than 3,000 households in 12 provinces in Vietnam. That data is very important for policy formulation. A new rural development program has already been set as a national targeted program. I think our study has a very strong influence in that decision. Development is like traveling a very difficult road. Having a map that can guide you is going to facilitate that process. Data is a very fundamental part of that map. This experience can be documented and can be disseminated around the world so that other countries can learn.