Entrepreneurship at Odds: The Influence of Online Betting on Business Creation

Last registered on January 22, 2026

Pre-Trial

Trial Information

General Information

Title
Entrepreneurship at Odds: The Influence of Online Betting on Business Creation
RCT ID
AEARCTR-0016996
Initial registration date
January 13, 2026

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
January 22, 2026, 6:19 AM EST

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

Locations

Region

Primary Investigator

Affiliation
FGV EESP

Other Primary Investigator(s)

PI Affiliation
FGV-EESP
PI Affiliation
University of Cambridge and FGV-EESP

Additional Trial Information

Status
In development
Start date
2025-09-18
End date
2026-02-28
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This project investigates how online betting influences entrepreneurship and business creation in Brazil. The rapid expansion of online betting platforms raises concerns about whether gambling diverts scarce resources away from productive investment or represents a form of leisure consumption. We combine a nationally representative online survey with a randomized information experiment that provides respondents with legal details on the expected returns of betting and information about betting returns. Primary outcomes include firm closure, intentions to start a business, and financial allocations, while mechanisms cover debt, savings, financial literacy, and risk attitudes.
External Link(s)

Registration Citation

Citation
Belleza, Lucas, Tiago Cavalcanti and Daniel Da Mata. 2026. "Entrepreneurship at Odds: The Influence of Online Betting on Business Creation." AEA RCT Registry. January 22. https://doi.org/10.1257/rct.16996-1.0
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Experimental Details

Interventions

Intervention(s)
The online betting market is still relatively new in Brazil, which makes it difficult to ensure a stable regulatory environment, effective enforcement, and widespread understanding of how the market works. It is also important to note that very few people are aware of the existing laws. With this in mind, we propose the following experiment. We aim to test whether knowledge of Brazilian legislation - which sets technical parameters for the Return-to-Player (RTP) - or information about the negative expected returns of online betting affects individuals’ willingness to invest in betting.
Intervention Start Date
2025-09-18
Intervention End Date
2026-02-28

Primary Outcomes

Primary Outcomes (end points)
Firm closure, Intentions to start a business, and financial allocations (experiment)
Primary Outcomes (explanation)
Firm closure is a binary variable equal to one if the individual reports having owned a company that was closed, and zero otherwise. We will compare the prevalence of company closures between bettors and non-bettors. In addition, we will ask individuals why their company closed.
For the intentions to start a business, we rely on self-reported entrepreneurial aspirations. Respondents are asked whether they plan to open a business in the near future.
For financial allocations, we use the experimental arm of the survey, where participants are randomly assigned to receive information about the legal framework surrounding betting. We then measure reported intended allocation of discretionary income across categories, including betting, leisure, and investment. The outcome of interest is the share of income allocated to betting/saving/business/other goods or a dummy indicating a positive value allocated to betting/savings/business/other goods.

Secondary Outcomes

Secondary Outcomes (end points)
Debt, Savings, Financial Literacy, Risk Attitudes and Expected return from online betting.
Secondary Outcomes (explanation)
Our secondary outcomes are directly related to the mechanisms we aim to test. For each mechanism, we include a specific question in the survey. To capture debt and saving behavior, we ask respondents whether they have saved any portion of their income in the past six months. To measure financial literacy, we use a standard World Bank question on financial knowledge. Finally, to assess risk attitudes, we include questions on the respondent’s risk profile and their expected return from bets.

Experimental Design

Experimental Design
We conduct a nationally representative online survey experiment in Brazil to study how exposure to online betting affects entrepreneurship and financial decision-making. The survey combines descriptive questions on betting behavior and entrepreneurship with a randomized information treatment.
Experimental Design Details
Not available
Randomization Method
Randomization was performed automatically by the Qualtrics platform at the individual level using computer-generated random numbers, ensuring equal probability of assignment to treatment and control groups.
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
3200 individuals
Sample size: planned number of observations
3200 individuals
Sample size (or number of clusters) by treatment arms
1066 approximately
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Our simulations, based on 1,000 Monte Carlo replications for each outcome, show that with 3,200 respondents, the design achieves approximately 80% empirical power to detect effects ranging from 0.08 to 0.11 in probability units, depending on the outcome. Specifically, the estimated empirical power and corresponding minimum detectable effects (MDE) are as follows: 0.795 power for High-value Bet (0.085), 0.790 power for High-value Business (0.105), 0.811 power for Low-value Bet (0.084), and 0.786 power for Low-value Business (0.112). These MDEs correspond to effects between 8 and 11 percentage points, which represent realistic magnitudes for behavioral responses in survey experiments of this type.
IRB

Institutional Review Boards (IRBs)

IRB Name
Fundação Getulio Vargas
IRB Approval Date
2025-08-22
IRB Approval Number
Parecer n. P.368.2025
IRB Name
Fundação Getulio Vargas
IRB Approval Date
2026-01-12
IRB Approval Number
Parecer 2 P.368.2025