CIESIN offers unrestricted access and use of data without charge, unless specified in the documentation for particular data. All other rights are reserved.
The Trustees of Columbia University in the City of New York, the International Food Policy Research Institute (IPFRI), the World Bank, and the Centro Internacional de Agricultura Tropical (CIAT) hold the copyright of this dataset.
USERS ARE PROHIBITED FROM ANY COMMERCIAL, NON-FREE RESALE, OR REDISTRIBUTION WITHOUT EXPLICIT WRITTEN PERMISSION FROM THE COPYRIGHT HOLDERS.
Users should acknowledge CIESIN, IFPRI, the World Bank, and CIAT as the source used in the creation of any reports, publications, new data sets, derived products, or services resulting from the use of this data set. The authors also request reprints of any publications and notification of any redistributing efforts.