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Abstract
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Before
I test a theory of spillover formation based on behavioral biases related to the interpretation of RCTs assignment methods.
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After
I test a theory of spillover formation based on behavioral biases related to the interpretation of RCTs awareness and assignment methods.
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Last Published
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Before
July 08, 2024 12:39 PM
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After
February 11, 2025 04:25 PM
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Primary Outcomes (End Points)
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Before
Demand for information (willingness to pay, contact the extension services), changes in links (networks), ability perceptions, trust, crop yields, technology adoption, agricultural knowledge
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After
Demand for information (willingness to pay, contact for extension services' programs, contact for government programs), changes in links (networks), ability perceptions, trust, crop yields, technology adoption, agricultural knowledge, locus of control, life satisfaction, religiosity, confidence, productivity, income, attrition
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Experimental Design (Public)
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Before
I will provide free access to a soil quality test similar to the Soil Health Card for the treatment group within a village. The variation is between villages: I will randomize villages into 1) ambiguous treatment assignment vs visual treatment assignment; 2) high percentage of eligible population into treatment group vs low percentage of eligible population into treatment group; 3) intervention introduced by local organization vs outsider organization
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After
I will provide free access to a soil quality test similar to the Soil Health Card for the treatment group within a village. The variation is between villages: I will randomize villages into 1) ambiguous treatment assignment vs visual treatment assignment; 2) high percentage of eligible population into treatment group vs low percentage of eligible population into treatment group; 3) pure control arm: villages where no farmer will be targeted; 4) pure treatment arm: villages where all the farmers are targeted.
If resources allow: 5) intervention introduced by local organization vs outsider organization;
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Randomization Method
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Before
Between villages, randomization will be done in the office by a computer (Stata); within villages, randomization will be done by a lottery (visual vs non-visual)
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After
Between villages, randomization will be done in the office by a computer (Stata), making sure villages that are less than 5km away from each other are clustered inside the same treatment arm; within villages, randomization will be done by a lottery (visual vs non-visual). The visual lottery consists of removing balls from a bag.
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Sample size (or number of clusters) by treatment arms
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Before
20 villages into local organization + visual treatment assignment, 20 villages into outsider organization + visual treatment assignment, 20 villages into local organization + non-visual treatment assignment + high percentage of eligible population into treatment group, 20 villages into local organization + non-visual treatment assignment + low percentage of eligible population into treatment group, 20 villages into outsider organization + non-visual treatment assignment + high percentage of eligible population into treatment group, 20 villages into outsider organization + non-visual treatment assignment + low percentage of eligible population into treatment group
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After
35 villages into visual treatment assignment, 35 villages into non-visual treatment assignment
25 villages pure control
25 villages pure treatment
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Additional Keyword(s)
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Before
Spillovers, motivated reasoning, RCTs
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After
Spillovers, motivated reasoning, RCTs, awareness
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