Long-Term Diffusion and Impact of Flood-Tolerant Rice in India

Last registered on May 19, 2017

View Trial History

Pre-Trial

Trial Information

General Information

Title

Long-Term Diffusion and Impact of Flood-Tolerant Rice in India

RCT ID

AEARCTR-0002157

Initial registration date

May 19, 2017

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published

May 19, 2017, 12:47 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Locations

Country

India

Region

Primary Investigator

Name

Elisabeth Sadoulet

Affiliation

Contact Primary Investigator

Other Primary Investigator(s)

PI Name

Kyle Emerick

PI Affiliation

Tufts University

Contact Investigator

PI Name

Alain Janvry

PI Affiliation

University of California, Berkeley

Contact Investigator

Additional Trial Information

Status

On going

Start date

2015-05-01

End date

2017-12-31

Keywords

Agriculture, Environment & Energy

Additional Keywords

JEL code(s)

Secondary IDs

Abstract

This is a follow-up on two experiments (2011, 2012) conducted to study the flood tolerant rice Swarna Sub-1. In both experiments, farmers in treatment villages were randomly selected to receive 5kg minikits of Swarna Sub-1 seeds. The study attempts to determine the long-run impact of the technology on farmers’ cultivation practices, household investment, welfare and on the local economy. (The original study is registered as AEARCTR-0000448.)

External Link(s)

J-PAL Evaluation Summary

Registration Citation

Citation

Emerick, Kyle, Alain Janvry and Elisabeth Sadoulet. 2017. "Long-Term Diffusion and Impact of Flood-Tolerant Rice in India." AEA RCT Registry. May 19. https://doi.org/10.1257/rct.2157-1.0

Former Citation

Emerick, Kyle, Alain Janvry and Elisabeth Sadoulet. 2017. "Long-Term Diffusion and Impact of Flood-Tolerant Rice in India." AEA RCT Registry. May 19. https://www.socialscienceregistry.org/trials/2157/history/17794

Sponsors & Partners

Experimental Details

Interventions

Intervention(s)

Intervention Start Date

2015-05-01

Intervention End Date

2017-04-17

Primary Outcomes

Primary Outcomes (end points)

Year to year adoption of SS1 rice by kit recipients as well as other farmers; Area cultivated; Changes in production practices-use of inputs; Changes in household investment and welfare; Changes in local price of rice

Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)

Secondary Outcomes (explanation)

Experimental Design

Experiment 1: Conducted in 128 villages in 2011, of which 64 were randomly assigned to treatment. In these treatment villages 5 randomly selected farmers among the group of farmers growing Swarna rice were provided 5 kg minikits of Swarna Sub-1 seeds. Control farmers include 10 non-recipient farmers within these 64 treatment villages, and 5 farmers selected in the 64 villages.

Experiment 2: Conducted in 2012 in another 82 villages. 5 kg minikits of SS1 seeds were provided to 5 randomly selected farmers in 2012. In 2013, door to door sale were conducted in 41 of these villages while in the remaining 41, no further supply was provided externally.

Experimental Design Details

Randomization Method

randomization in Stata

Randomization Unit

Village

Was the treatment clustered?

Yes

Experiment Characteristics

Sample size: planned number of clusters

210 villages

Sample size: planned number of observations

15,169 farmers

Sample size (or number of clusters) by treatment arms

Experiment 1: 128 villages covering 320 kit recipients and 960 control farmers
Experiment 2: 82 villages covering 410 kit recipients and 1151 control farmers (potential buyers)

Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Supporting Documents and Materials

IRB