Data set

The impact assessment unit has a database that comprises data from several countries and at difference levels. The light survey and deep survey are major sources of this data set.


Description

Côte d’Ivoire

• A completely cleaned data set containing varietal diffusion and adoption information involving about 1,500 rice farmers in 50 villages of Côte d’Ivoire. Collected between 2000 and 2002, it is being used to analyze various issues related to adoption of modern varieties (including the NERICAs), rice biodiversity, seed acquisition and management, etc.

• A data set containing detailed plot and household levels information on a sample of 280 farm household in Côte d’Ivoire. This data, which is in the final stage of cleaning, has some gaps due to the disruptions caused by the war in Côte d’Ivoire. The data is being used to assess the impact NERICA adoption on rice productivity and household level indicators of well being in Côte d’Ivoire.

• The two data sets are fully documented.

Guinea (joint with IRAG and SNPRV)

• A data set collected between 2002 and 2004 and containing varietal diffusion and adoption information on about 1,600 rice farmers in 80 villages from all four natural regions of Guinea. This data set is relatively cleaned and is being used to analyze various issues related to adoption of NERICA and other modern varieties, rice biodiversity, seed acquisition and management, etc. The data was combined with census-level data (from the national agricultural census) to estimate the actual and potential areas for different varieties for the entire country. This data set is fully documented.

• A data set containing detailed plot and household-level information on a sample of about 500 farm households in Guinea. Data entry and cleaning for this data set is still on-going. This data is being used in particular to assess the impact of NERICA adoption in Guinea.

Benin (joint with INRAB)

• A data set containing varietal diffusion and adoption information for about 300 rice farmers in 24 villages in Benin. This data set collected in 2004 and 2005 is relatively cleaned and is being used to analyze various issues related to the adoption of NERICA and other modern varieties and to assess the impact of such adoption in Benin. This data set has not yet been documented.

Gambia

• A completely cleaned data set containing varietals-diffusion and adoption information involving about 600 rice farmers in 70 villages of The Gambia. Collected 2006, the data has been analyzed and two papers have been written focusing on a adoption and impact of the NERICAs.

• The data set has been fully documented and available for use by those that may need it.