Public Parks Upgrading and Individual and Social Outcomes: Experimental Evidence
Last registered on October 06, 2014

Pre-Trial

Trial Information
General Information
Title
Public Parks Upgrading and Individual and Social Outcomes: Experimental Evidence
RCT ID
AEARCTR-0000293
Initial registration date
October 06, 2014
Last updated
October 06, 2014 1:21 PM EDT
Location(s)
Primary Investigator
Affiliation
PUC-Chile
Other Primary Investigator(s)
PI Affiliation
J-PAL LAC, PUC
Additional Trial Information
Status
In development
Start date
2012-01-31
End date
2015-06-30
Secondary IDs
Abstract
Vulnerable neighborhoods in Latin American cities present a large shortage of green areas and adequate public space for community life. The lack of green areas and well-maintained public space is frequently correlated with crime, poverty and insecurity, arguably leading residents to a vicious cycle of social inactivity and withdrawal into private sphere. Increasingly aware of these problems, expanding access to green space and improving the quality of public space in vulnerable areas are currently policy priorities in the social agenda of many middle income countries, particularly in Latin America.

This study exploits a pair matching RCT design to assess the impact of a community-based urban park construction intervention implemented by Fundación Mi Parque in vulnerable sectors of Santiago de Chile on individual and social outcomes including social capital, crime, health, environmental preferences, family relations and use of time.

External Link(s)
Registration Citation
Citation
Gallego, Francisco and Francisco Gallego. 2014. "Public Parks Upgrading and Individual and Social Outcomes: Experimental Evidence." AEA RCT Registry. October 06. https://www.socialscienceregistry.org/trials/293/history/2818
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2012-03-01
Intervention End Date
2014-07-31
Primary Outcomes
Primary Outcomes (end points)
Security
Social capital
Use of the park
Use of the neighborhood
Investments in the house
Use of time
Perception of health
Frequency for emotions
Environmental preferences
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
The treatment assignment process is conducted at the plot level and it is implemented in two stages. During the first stage, 30 pairs of comparable plots are generated from a pool of 60 plots that fulfill the eligibility criteria of Mi Parque. Plot and neighborhood-based indexes are used in the creation of the pairs of plots to ensure that plots within each pair are comparable. In a second stage, we randomly assign within each pair one plot to the treatment group and one plot to the control group.
Experimental Design Details
Randomization Method
Randomization done in office by a computer
Randomization Unit
Plots
Was the treatment clustered?
Yes
Experiment Characteristics
Sample size: planned number of clusters
60 neighborhoods
Sample size: planned number of observations
1680
Sample size (or number of clusters) by treatment arms
1680
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Comité de Ética de Investigación - Instituto de Economía - Pontificia Universidad Católica de Chile
IRB Approval Date
2013-04-11
IRB Approval Number
NA
Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
No
Is data collection complete?
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports and Papers
Preliminary Reports
Relevant Papers