Who adopts improved fuels and cookstoves? A systematic review

Jessica J Lewis, Subhrendu K Pattanayak, Jessica J Lewis, Subhrendu K Pattanayak

Abstract

Background: The global focus on improved cookstoves (ICSs) and clean fuels has increased because of their potential for delivering triple dividends: household health, local environmental quality, and regional climate benefits. However, ICS and clean fuel dissemination programs have met with low rates of adoption.

Objectives: We reviewed empirical studies on ICSs and fuel choice to describe the literature, examine determinants of fuel and stove choice, and identify knowledge gaps.

Methods: We conducted a systematic review of the literature on the adoption of ICSs or cleaner fuels by households in developing countries. Results are synthesized through a simple vote-counting meta-analysis.

Results: We identified 32 research studies that reported 146 separate regression analyses of ICS adoption (11 analyses) or fuel choice (135 analyses) from Asia (60%), Africa (27%), and Latin America (19%). Most studies apply multivariate regression methods to consider 7-13 determinants of choice. Income, education, and urban location were positively associated with adoption in most but not all studies. However, the influence of fuel availability and prices, household size and composition, and sex is unclear. Potentially important drivers such as credit, supply-chain strengthening, and social marketing have been ignored.

Conclusions: Adoption studies of ICSs or clean energy are scarce, scattered, and of differential quality, even though global distribution programs are quickly expanding. Future research should examine an expanded set of contextual variables to improve implementation of stove programs that can realize the "win-win-win" of health, local environmental quality, and climate associated with these technologies.

Conflict of interest statement

The authors declare they have no actual or potential competing financial interests.

Figures

Figure 1
Figure 1
PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analysis) flow diagram for searching and extracting data (adapted from Moher et al. 2009). aOne article contained both ICS and fuel choice analyses.
Figure 2
Figure 2
Systematic review of variables that influence the adoption of ICSs. Each analysis of ICS adoption casts one “vote” for every variable that it includes. The sign of the vote (positive or negative) reflects the direction of the association with ICS adoption. Abbreviations: agri, agriculture; avail, availability; educ, education; elec, electricity; empl, employment; kero, kerosene; lab, labor; soc marg, socially marginal status; fem, female; HH, household. aChild is a variable created by merging three variables: presence of children in household, number of children, and proportion of children < 15 years of age. bAge is a variable created by merging four variables: age of head of household, age of head of household if > 30 years of age, wife’s age, and mean household age (see Supplemental Material, Table 1).
Figure 3
Figure 3
Systematic review of variables that influence choice of cooking fuels. Each analysis of clean fuel choice casts one “vote” for every variable that it includes. The sign of the vote (positive or negative) reflects the direction of the association with clean fuel choice. Abbreviations: agri, agriculture; avail, availability; cas, caual; educ, education; elec, electricity; empl, employment; kero, kerosene; lab, labor; soc marg, socially marginal status; fem, female; HH, household; rms, rooms per household. aChild is a variable created by merging three variables: presence of children in household, number of children, and proportion of children < 15 years of age. bAge is a variable created by merging four variables: age of head of household, age of head of household if > 30 years of age, wife’s age, and mean household age (see Supplemental Material, Table 1).
Figure 4
Figure 4
Systematic review of variables that influence choice of cooking fuels: robustness check excluding the large number of Indian analyses. Each analysis of clean fuel choice casts one “vote” for every variable that it includes. The sign of the vote (positive or negative) reflects the direction of the association with clean fuel choice. Only analyses that were conducted in countries other than India are included in this test for robustness. Abbreviations: agri, agriculture; avail, availability; cas, caual; educ, education; elec, electricity; empl, employment; kero, kerosene; lab, labor; soc marg, socially marginal status; fem, female; HH, household; rms, rooms per household. aChild is a variable created by merging three variables: presence of children in household, number of children, and proportion of children < 15 years of age. bAge is a variable created by merging four variables: age of head of household, age of head of household if > 30 years of age, wife’s age, and mean household age (see Supplemental Material, Table 1).

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