Green Investors

Last registered on May 28, 2023
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Pre-Trial

Trial Information

General Information

Title
Green Investors
RCT ID
AEARCTR-0011247
Initial registration date
April 11, 2023

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
April 13, 2023, 4:44 PM EDT

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

Last updated
May 28, 2023, 4:00 AM EDT

Last updated is the most recent time when changes to the trial's registration were published.

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Primary Investigator

Name
David Reeb
Affiliation
National University of Singapore
Contact Primary Investigator

Other Primary Investigator(s)

PI Name
Ofir Gefen
PI Affiliation
Hong Kong Polytechnic
PI Name
Johan Sulaeman
PI Affiliation
National University of Singapore
PI Name
Rachel Zhang
PI Affiliation
National University of Singapore

Additional Trial Information

Status
On going
Start date
2023-04-11
End date
2024-04-25
Keywords
Environment & Energy, Finance & Microfinance
Additional Keywords
JEL code(s)
Q56, G30, M41
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This study evaluates the demand for green capital.
External Link(s)

Registration Citation

Citation
Gefen, Ofir et al. 2023. "Green Investors." AEA RCT Registry. May 28. https://doi.org/10.1257/rct.11247-1.1
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
This study will look at how firms view green financing.
Intervention Start Date
2023-04-11
Intervention End Date
2023-04-25

Primary Outcomes

Primary Outcomes (end points)
1. Difference in view rates by startups of green and non-green investors
2. Difference in visit rates by startups of green and non-green investors
3. Difference in visit rates by startups of investors with more/less disclosure
Primary Outcomes (explanation)
1. Interested parties will either read or not read our emails
2. Interested parties will either visit or not visit our website
3. Interested parties will either be influence or not by voluntary disclosure.

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Randomization by computer
Experimental Design Details
Not available
Randomization Method
Randomization by computer
Randomization Unit
Each startup will be randomly assigned pitches from a green, neutral, or non-green investor.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
12 Arms
Sample size: planned number of observations
45,000 Startups with follow-up emails
Sample size (or number of clusters) by treatment arms
Sample Size # observations:

20,000 responses
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
around 4,000 for each arm Minimum detectable size: Assuming 40,000 observations, wee expect a 40% read rate and a 5% visit rate. Based on this we will be able detect 1.59% and 0.73% differences in the base rates (using the Stata Codes below). . power twoproportions 0.40, alpha(0.05) power(0.9) n(40000) Performing iteration ... Estimated experimental-group proportion for a two-sample proportions test Pearson's chi-squared test Ho: p2 = p1 versus Ha: p2 != p1; p2 > p1 Study parameters: alpha = 0.0500 power = 0.9000 N = 40000 N per group = 20000 p1 = 0.4000 Estimated effect size and experimental-group proportion: delta = 0.0159 (difference) p2 = 0.4159 . power twoproportions 0.05, alpha(0.05) power(0.9) n(40000) Performing iteration ... Estimated experimental-group proportion for a two-sample proportions test Pearson's chi-squared test Ho: p2 = p1 versus Ha: p2 != p1; p2 > p1 Study parameters: alpha = 0.0500 power = 0.9000 N = 40000 N per group = 20000 p1 = 0.0500 Estimated effect size and experimental-group proportion: delta = 0.0073 (difference) p2 = 0.0573
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
National University of Singapore Randomized Field Experiment
IRB Approval Date
2022-06-01
IRB Approval Number
S-20-099
Analysis Plan