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Abstract
Mathematical models are derived measuring the social benefit and cost of
information in comparison to the social benefit or cost of an input (fertilizer)
subsidy under different factor market assumptions. In 1975, 54 countries
subsidized fertilizers (FAO). In the following countries, the subsidy was as high
as 50 percent of the average price of all fertilizers: Ghana, Libya, Niger,
Tanzania, Uganda (certain farmers), Iran, and Sri Lanka. In Togo, the subsidy
on urea in 1974 was 82 percent (FAO).