Farjana, Fariha: Innovation adoption among smallholder farmers in Bangladesh and effects on agricultural production and dietary quality. - Bonn, 2026. - Dissertation, Rheinische Friedrich-Wilhelms-Universität Bonn.
Online-Ausgabe in bonndoc: https://nbn-resolving.org/urn:nbn:de:hbz:5-88654
Online-Ausgabe in bonndoc: https://nbn-resolving.org/urn:nbn:de:hbz:5-88654
@phdthesis{handle:20.500.11811/13968,
urn: https://nbn-resolving.org/urn:nbn:de:hbz:5-88654,
author = {{Fariha Farjana}},
title = {Innovation adoption among smallholder farmers in Bangladesh and effects on agricultural production and dietary quality},
school = {Rheinische Friedrich-Wilhelms-Universität Bonn},
year = 2026,
month = mar,
note = {Securing sufficient and diverse, nutritious food for all is challenging, especially in developing countries, where the economy is often largely dependent on agriculture. Governments are introducing various interventions for smallholder farmers; however, these are not always successful in practice. Even if food production improves, poor dietary quality and malnutrition still persist among rural smallholders. Adoption of different farming techniques, access to information technology, and changes in land-use policies may be helpful in supporting smallholders. In three essays, this dissertation empirically investigates the effects of rice-aquaculture adoption, internet use for information access, and land fragmentation on certain dietary outcomes and time allocation among farm households in rural Bangladesh. Primary survey data were collected from 720 farm households and are analysed using various econometric techniques.
The first essay examines the effect of rice-aquaculture adoption on household diets and nutrition. Results from different econometric analyses suggest that adopting rice-aquaculture is associated with a decrease in household dietary quality, especially during the agricultural lean season. Heterogeneous impact analysis reveals that smallholders with young household heads, low education levels, and small landholdings are over-proportionally affected. The possible mechanisms of these unexpected negative diet effects show that rice-aquaculture adopters spend much more time on farming, leaving less time for off-farm activities, cooking and other domestic tasks. Adopters have lower crop and livestock production diversity, lower income from forest extraction activities, and higher debts than non-adopters.
The second essay explores the effects of internet use on smallholders’ agricultural production and food consumption. Employing propensity score matching and instrumental variable methods, the study demonstrates that internet use is positively associated with farm production outcomes, i.e. production diversity, commercialization, and income. Regarding smallholders’ consumption outcomes, the study also finds positive effects on dietary diversity, even though the results depend on the specific dietary indicators used. Internet use increases household and women’s dietary diversity, whereas the effects on child dietary diversity are not statistically significant. Internet use encourages the production of certain nutritious foods, but the positive effects do not always translate into improved consumption outcomes. Our results highlight the important role of the internet in enhancing farm productivity, income, and potentially diets. The third essay focuses on the impact of land fragmentation on women's non-farm activities and dietary quality. Our findings demonstrate that land fragmentation significantly increases the time women spend on farming activities, thereby reducing the time available for cooking and food preparation. Among women with low levels of education and young children, land fragmentation is also associated with less time spent in non-farm employment activities. Regarding dietary diversity, we do not find statistically significant effects. These findings imply that land defragmentation should be promoted, as it does not harm household diets, while improving farm productivity, reducing women’s farming workloads, and freeing up time for non-farm employment. In addition, policies that enhance women’s education could further improve access to profitable non-farm jobs and support better household dietary quality.},
url = {https://hdl.handle.net/20.500.11811/13968}
}
urn: https://nbn-resolving.org/urn:nbn:de:hbz:5-88654,
author = {{Fariha Farjana}},
title = {Innovation adoption among smallholder farmers in Bangladesh and effects on agricultural production and dietary quality},
school = {Rheinische Friedrich-Wilhelms-Universität Bonn},
year = 2026,
month = mar,
note = {Securing sufficient and diverse, nutritious food for all is challenging, especially in developing countries, where the economy is often largely dependent on agriculture. Governments are introducing various interventions for smallholder farmers; however, these are not always successful in practice. Even if food production improves, poor dietary quality and malnutrition still persist among rural smallholders. Adoption of different farming techniques, access to information technology, and changes in land-use policies may be helpful in supporting smallholders. In three essays, this dissertation empirically investigates the effects of rice-aquaculture adoption, internet use for information access, and land fragmentation on certain dietary outcomes and time allocation among farm households in rural Bangladesh. Primary survey data were collected from 720 farm households and are analysed using various econometric techniques.
The first essay examines the effect of rice-aquaculture adoption on household diets and nutrition. Results from different econometric analyses suggest that adopting rice-aquaculture is associated with a decrease in household dietary quality, especially during the agricultural lean season. Heterogeneous impact analysis reveals that smallholders with young household heads, low education levels, and small landholdings are over-proportionally affected. The possible mechanisms of these unexpected negative diet effects show that rice-aquaculture adopters spend much more time on farming, leaving less time for off-farm activities, cooking and other domestic tasks. Adopters have lower crop and livestock production diversity, lower income from forest extraction activities, and higher debts than non-adopters.
The second essay explores the effects of internet use on smallholders’ agricultural production and food consumption. Employing propensity score matching and instrumental variable methods, the study demonstrates that internet use is positively associated with farm production outcomes, i.e. production diversity, commercialization, and income. Regarding smallholders’ consumption outcomes, the study also finds positive effects on dietary diversity, even though the results depend on the specific dietary indicators used. Internet use increases household and women’s dietary diversity, whereas the effects on child dietary diversity are not statistically significant. Internet use encourages the production of certain nutritious foods, but the positive effects do not always translate into improved consumption outcomes. Our results highlight the important role of the internet in enhancing farm productivity, income, and potentially diets. The third essay focuses on the impact of land fragmentation on women's non-farm activities and dietary quality. Our findings demonstrate that land fragmentation significantly increases the time women spend on farming activities, thereby reducing the time available for cooking and food preparation. Among women with low levels of education and young children, land fragmentation is also associated with less time spent in non-farm employment activities. Regarding dietary diversity, we do not find statistically significant effects. These findings imply that land defragmentation should be promoted, as it does not harm household diets, while improving farm productivity, reducing women’s farming workloads, and freeing up time for non-farm employment. In addition, policies that enhance women’s education could further improve access to profitable non-farm jobs and support better household dietary quality.},
url = {https://hdl.handle.net/20.500.11811/13968}
}





