Technical efficiency analysis correcting for biases from observed and unobserved variables: an application to a natural resource management project
MetadataShow full item record
This article brings together the stochastic frontier framework with impact evaluation methodology to compare technical efficiency (TE) across treatment and control groups using cross-sectional data associated with the MARENA Program in Honduras. A matched group of beneficiaries and control farmers is determined using propensity score matching techniques to mitigate biases stemming from observed variables. In addition, possible self-selection arising from unobserved variables is addressed using a selectivity correction model for stochastic frontiers recently introduced by Greene (J Prod Anal 34:15–24, 2010). The results reveal that average TE is consistently higher for beneficiary farmers than the control group while the presence of selectivity bias cannot be rejected. TE ranges from 0.67 to 0.75 for beneficiaries and from 0.40 to 0.65 for the control depending on whether biases were controlled or not. The TE gap between beneficiaries and control farmers decreases by implementing the matching technique and the sample selection framework decreases this gap even further. The analysis also suggests that beneficiaries do not only exhibit higher TE but also higher frontier output.
Showing items related by title, author, creator and subject.
Technical efficiency analysis correcting for biases from observed and unobserved variables: An application to a natural resource management projectBravo-Ureta, B.; Greene, William; Solís, D. (2012)This article brings together the stochastic frontier framework with impact evaluation methodology to compare technical efficiency (TE) across treatment and control groups using cross-sectional data associated with the ...
Public sector efficiency of decentralized local government in Indonesia : a political and institutional analysisKurnia, Akhmad Syakir (2012)This thesis investigates public sector efficiency (PSE) of decentralized local governments in Indonesia. Based on the literature review improved efficiency is considered as the main outcome expected from a decentralized ...
Food-related attentional bias. Word versus pictorial stimuli and the importance of stimuli calorific value in the dot probe taskFreijy, T.; Mullan, Barbara; Sharpe, L. (2014)Objective: The primary aim of this study was to extend previous research on food-related attentional biases by examining biases towards pictorial versus word stimuli, and foods of high versus low calorific value. It was ...