Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara

Climate change and weather variability pose serious threats to food and nutrition security as well as ecosystems, especially when livelihoods depend heavily on natural resources. This study examines the effect of weather variability (shock) occurring up to three planting and growing season prior on...

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Main Authors: Haile, Beliyou, Signorelli, Sara, Azzarri, Carlo, Johnson, Timothy
Format: Journal Article
Language:Inglés
Published: Public Library of Science 2018
Subjects:
Online Access:https://hdl.handle.net/10568/146083
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author Haile, Beliyou
Signorelli, Sara
Azzarri, Carlo
Johnson, Timothy
author_browse Azzarri, Carlo
Haile, Beliyou
Johnson, Timothy
Signorelli, Sara
author_facet Haile, Beliyou
Signorelli, Sara
Azzarri, Carlo
Johnson, Timothy
author_sort Haile, Beliyou
collection Repository of Agricultural Research Outputs (CGSpace)
description Climate change and weather variability pose serious threats to food and nutrition security as well as ecosystems, especially when livelihoods depend heavily on natural resources. This study examines the effect of weather variability (shock) occurring up to three planting and growing season prior on per capita monthly household expenditure in rural Tanzania, Uganda, and Ghana. The analyses combine monthly temperature (1950–2013) and precipitation (1981–2013) data with data from several rounds of household surveys conducted between 1998 and 2013. Substantial spatial and temporal heterogeneity is documented in the incidence of shocks, with effects dependent on both the study and lag period considered. Analysis of short panel data shows the cumulative effect of above-average precipitation on expenditure to be negative in Uganda -while positive in Tanzania-, but the relationship does not persist when pooling survey data spanning over a decade. The evidence from pooled data suggests a positive association between above-average temperature (heat wave) and expenditure in (historically cooler) Uganda, with the opposite effect observed in (the relatively warmer) Tanzania. For Ghana, the association between heat wave and expenditure is positive. There is no evidence of heterogeneous effects along several dimensions, except by agro-ecological condition. Further research into the effects of shocks on more direct outcomes–such as agricultural practices, yields, and dietary intake–is therefore recommended to shed light on possible impact pathways and appropriate localized adaptation strategies.
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spelling CGSpace1460832025-02-19T14:08:08Z Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara Haile, Beliyou Signorelli, Sara Azzarri, Carlo Johnson, Timothy weather hazards household surveys household expenditure welfare precipitation weather data temperature poverty climate change Climate change and weather variability pose serious threats to food and nutrition security as well as ecosystems, especially when livelihoods depend heavily on natural resources. This study examines the effect of weather variability (shock) occurring up to three planting and growing season prior on per capita monthly household expenditure in rural Tanzania, Uganda, and Ghana. The analyses combine monthly temperature (1950–2013) and precipitation (1981–2013) data with data from several rounds of household surveys conducted between 1998 and 2013. Substantial spatial and temporal heterogeneity is documented in the incidence of shocks, with effects dependent on both the study and lag period considered. Analysis of short panel data shows the cumulative effect of above-average precipitation on expenditure to be negative in Uganda -while positive in Tanzania-, but the relationship does not persist when pooling survey data spanning over a decade. The evidence from pooled data suggests a positive association between above-average temperature (heat wave) and expenditure in (historically cooler) Uganda, with the opposite effect observed in (the relatively warmer) Tanzania. For Ghana, the association between heat wave and expenditure is positive. There is no evidence of heterogeneous effects along several dimensions, except by agro-ecological condition. Further research into the effects of shocks on more direct outcomes–such as agricultural practices, yields, and dietary intake–is therefore recommended to shed light on possible impact pathways and appropriate localized adaptation strategies. 2018-12-11 2024-06-21T09:05:47Z 2024-06-21T09:05:47Z Journal Article https://hdl.handle.net/10568/146083 en Open Access Public Library of Science Haile, Beliyou; Signorelli, Sara; Azzarri, Carlo; and Johnson, Timothy. 2018. Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara. PLoS ONE 13(11): e0206415. https://doi.org/10.1371/journal.pone.0206415
spellingShingle weather hazards
household surveys
household expenditure
welfare
precipitation
weather data
temperature
poverty
climate change
Haile, Beliyou
Signorelli, Sara
Azzarri, Carlo
Johnson, Timothy
Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara
title Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara
title_full Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara
title_fullStr Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara
title_full_unstemmed Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara
title_short Welfare effects of weather variability: Multi-country evidence from Africa south of the Sahara
title_sort welfare effects of weather variability multi country evidence from africa south of the sahara
topic weather hazards
household surveys
household expenditure
welfare
precipitation
weather data
temperature
poverty
climate change
url https://hdl.handle.net/10568/146083
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