Efficiency Effects of Access to Information on Small-scale Agriculture: Empirical Evidence from Uganda using Stochastic Frontier and IRT Models

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Low power home electrical items such as radios, mobile phones and televisions are an important source of agricultural information for small scale farmers in developing countries. To empirically test the effects of access to information from these items on efficiency in agriculture, we formulate a stochastic frontier model augmented with a technical efficiency model that controls for an index capturing farmers’ ‘ability to access information’. The index is constructed with a 2-parameter item response theory (IRT) model based on farmers’ access to the electrical items. Using 6 rounds of panel data on small scale farmers in Uganda, we find empirical evidence of a significant and positive relationship between farmer ability to access information and farm efficiency. There is also evidence that the size of these effects is larger for more literate hence better educated farmers. Greater access to information also appears to be associated with increased variance of (in)efficiency and output although the form of the increased variances is underpinned by low risk of lower efficiency and output realisations and high likelihood of higher efficiency and output realisations. Our findings imply that access to limited quantities of electricity needed to power these electrical items can have positive farm efficiency effects, and hence the importance of off-grid electricity (e.g. standalone solar panels) for small-scale farmers in typically isolated communities in developing countries.
Original languageEnglish
Pages (from-to)494-517
Number of pages24
JournalJournal of Agricultural Economics
Issue number2
Early online date9 Sep 2016
Publication statusPublished - Jun 2017



  • Agricultural policy
  • development economics
  • efficiency
  • energy
  • information
  • policy
  • productivity analysis
  • welfare economics

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