The Long-Term Impact of Microcredit Impacts 1998 is a follow up survey conducted by Bangladesh Institute of Development Studies (BIDS) and the World Bank. The survey was first carried out in 1991-1992 and the survey's main focus was to provide data for an analysis of three major credit programs (Grameen Bank, Bangladesh Rural Advancement Committee, and the Rural Development-12 program of the Bangladesh Rural Development Board).
The survey covered both villages from each of the programs under study as well as villages where no lending took place. The 1991-1992 survey included 1,798 households randomly drawn from 87 villages of 29 thanas in rural Bangladesh. These households from 87 villages of 29 thanas were surveyed first in 1991/92, and then revisited in 1998/99. In 1998-1999, altogether 2,599 households were surveyed, out of which 2,226 were from old villages and 373 were from new villages.