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The percent of fuel from off-farm can be assessed via survey. Household can be asked to indicate the “share of household income spent on fuel and electricity” (Vera and Langlois, 2007) and the source of fuel. From the different source of fuel listed, the percentage of fuel from off-farm source can be calculated.
How to operationalize the metric
Method of data collection and data needed to compute the method:
Unit of analysis:
Limitations regarding estimating and interpreting: