Intervention Size and Persistence
Do larger interventions improve longer run outcomes more cost effectively? And should poverty traps motivate increasing intervention size? This paper considers two approaches to increasing intervention size in the context of temporary unconditional cash transfers — larger transfers (intensity), and adding complementary graduation program interventions (scope). It does so leveraging 38 experimental estimates of dynamic consumption impacts from 14 developing countries. First, increasing intensity decreases cost effectiveness and does not affect persistence of impacts. This result can be explained by poverty traps or decreasing marginal return on investment in a standard buffer stock model. Second, increasing scope increases impacts and persistence, but reduces cost effectiveness at commonly evaluated time horizons and increases heterogeneity. In summary, larger interventions need not have more persistent impacts, and when they do, this may come at the expense of cost effectiveness, and poverty traps are neither necessary nor sufficient for these results.
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| Format: | Working Paper biblioteca |
| Language: | English |
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World Bank, Washington, DC
2021-09
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| Subjects: | CASH TRANSFERS, LONG-RUN IMPACT, COST EFFECTIVENESS, HOUSEHOLD CONSUMPTION, BENEFICIARY TARGETING, POVERTY TRAP, INTERVENTION DESIGN, GRADUATION, |
| Online Access: | http://documents.worldbank.org/curated/undefined/404501631120877904/Intervention-Size-and-Persistence http://hdl.handle.net/10986/36242 |
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dig-okr-10986362422021-09-16T19:38:06Z Intervention Size and Persistence Kondylis, Florence Loeser, John CASH TRANSFERS LONG-RUN IMPACT COST EFFECTIVENESS HOUSEHOLD CONSUMPTION BENEFICIARY TARGETING POVERTY TRAP INTERVENTION DESIGN GRADUATION Do larger interventions improve longer run outcomes more cost effectively? And should poverty traps motivate increasing intervention size? This paper considers two approaches to increasing intervention size in the context of temporary unconditional cash transfers — larger transfers (intensity), and adding complementary graduation program interventions (scope). It does so leveraging 38 experimental estimates of dynamic consumption impacts from 14 developing countries. First, increasing intensity decreases cost effectiveness and does not affect persistence of impacts. This result can be explained by poverty traps or decreasing marginal return on investment in a standard buffer stock model. Second, increasing scope increases impacts and persistence, but reduces cost effectiveness at commonly evaluated time horizons and increases heterogeneity. In summary, larger interventions need not have more persistent impacts, and when they do, this may come at the expense of cost effectiveness, and poverty traps are neither necessary nor sufficient for these results. 2021-09-09T14:08:23Z 2021-09-09T14:08:23Z 2021-09 Working Paper http://documents.worldbank.org/curated/undefined/404501631120877904/Intervention-Size-and-Persistence http://hdl.handle.net/10986/36242 English Policy Research Working Paper, No. 9769 CC BY 3.0 IGO http://creativecommons.org/licenses/by/3.0/igo World Bank World Bank, Washington, DC Publications & Research Publications & Research :: Policy Research Working Paper |
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| databasecode |
dig-okr |
| tag |
biblioteca |
| region |
America del Norte |
| libraryname |
Biblioteca del Banco Mundial |
| language |
English |
| topic |
CASH TRANSFERS LONG-RUN IMPACT COST EFFECTIVENESS HOUSEHOLD CONSUMPTION BENEFICIARY TARGETING POVERTY TRAP INTERVENTION DESIGN GRADUATION CASH TRANSFERS LONG-RUN IMPACT COST EFFECTIVENESS HOUSEHOLD CONSUMPTION BENEFICIARY TARGETING POVERTY TRAP INTERVENTION DESIGN GRADUATION |
| spellingShingle |
CASH TRANSFERS LONG-RUN IMPACT COST EFFECTIVENESS HOUSEHOLD CONSUMPTION BENEFICIARY TARGETING POVERTY TRAP INTERVENTION DESIGN GRADUATION CASH TRANSFERS LONG-RUN IMPACT COST EFFECTIVENESS HOUSEHOLD CONSUMPTION BENEFICIARY TARGETING POVERTY TRAP INTERVENTION DESIGN GRADUATION Kondylis, Florence Loeser, John Intervention Size and Persistence |
| description |
Do larger interventions improve longer
run outcomes more cost effectively? And should poverty traps
motivate increasing intervention size? This paper considers
two approaches to increasing intervention size in the
context of temporary unconditional cash transfers — larger
transfers (intensity), and adding complementary graduation
program interventions (scope). It does so leveraging 38
experimental estimates of dynamic consumption impacts from
14 developing countries. First, increasing intensity
decreases cost effectiveness and does not affect persistence
of impacts. This result can be explained by poverty traps or
decreasing marginal return on investment in a standard
buffer stock model. Second, increasing scope increases
impacts and persistence, but reduces cost effectiveness at
commonly evaluated time horizons and increases
heterogeneity. In summary, larger interventions need not
have more persistent impacts, and when they do, this may
come at the expense of cost effectiveness, and poverty traps
are neither necessary nor sufficient for these results. |
| format |
Working Paper |
| topic_facet |
CASH TRANSFERS LONG-RUN IMPACT COST EFFECTIVENESS HOUSEHOLD CONSUMPTION BENEFICIARY TARGETING POVERTY TRAP INTERVENTION DESIGN GRADUATION |
| author |
Kondylis, Florence Loeser, John |
| author_facet |
Kondylis, Florence Loeser, John |
| author_sort |
Kondylis, Florence |
| title |
Intervention Size and Persistence |
| title_short |
Intervention Size and Persistence |
| title_full |
Intervention Size and Persistence |
| title_fullStr |
Intervention Size and Persistence |
| title_full_unstemmed |
Intervention Size and Persistence |
| title_sort |
intervention size and persistence |
| publisher |
World Bank, Washington, DC |
| publishDate |
2021-09 |
| url |
http://documents.worldbank.org/curated/undefined/404501631120877904/Intervention-Size-and-Persistence http://hdl.handle.net/10986/36242 |
| work_keys_str_mv |
AT kondylisflorence interventionsizeandpersistence AT loeserjohn interventionsizeandpersistence |
| _version_ |
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