The household surveys conducted by the National Statistics Office (NSO) use a master sample to draw respondents for the respective surveys. Since the NSO started implementing this sampling approach in 2003, about 20% of the total sample is kept in each survey for a period of time,9 which allows panel analysis for a considerable number of households. Among these household surveys, two collect information on household welfare: the FIES and the Annual Poverty Indicators Survey (APIS). The FIES is conducted every three years and the APIS, every year in between FIES surveys. Another survey, the Labor Force Survey (LFS), coincidental to the FIES or APIS,10 is also part of the panel. The LFS provides information on employment status of each household member. Data from the following surveys were obtained to form the panel data for the analysis: