 If we don't know the movement, the thinking, the problem, the constraint, the resource, the potential of each family and each community, we cannot build a new society for the countries. In support of the Sustainable Development Goals, the United Nations has called for a data revolution. Vietnam, together with UNU Wider and its partners, have established data sets charting the country's rapid development. This series shares some of the lessons learned. My name is Dr. Kim Son. I was the director of IBSAC, a short name of the Policy and Strategy Research Institute of the Ministry of Agriculture and Rural Development in Vietnam. They invite me to come to the party conference and talk with the president, the prime minister, secretary of the party, every key person about the agriculture and rural area. When the development process happens, most of the farmers live in the rural area. They will go to the city, they will go to the factory, they will move to the non-farm activity. So what happens with them during that process? What is the income of them? What is the job of people inside of each farmhouse zone? To know about the changing of the structure of each family and whose community is very important. Only one way we can do that is to follow the track of each family. From the start in the rural area in farming economy, during the process that they move to another one, the year 2002, there are no any data sets like this. Each survey is repeat again and again in the same data panel and it creates opportunity for researchers to see very deep inside of each family and follow them for the whole life of the development. These data sets divide not only until each family but it also sees for different plots of land. And there is no any data set have that value. So we know that okay in what farmer changing in their mindset, they changing in their strategy of using resource and two very big program already been launched from that time. First is a restructure agriculture sector and second is a new rural development program already been set as national targeted program. I think our study has very strong influence in that decision.