Regulation and Compliance

What Happens When You Clean Up an Election: Evidence from Colombia

Growing up in Colombia, Natalia Garbiras-Díaz wondered why some towns had lights and running water and others didn't. Her research shows a clear link between free elections and improved infrastructure.

Close-up on hand putting a ballot in a ballot box, colored in a red-teal duotone.

Free and fair elections should result in governments more committed to improving lives than repaying political favors—but how? And by how much?

Growing up in Colombia, Harvard Business School Assistant Professor Natalia Garbiras-Díaz wanted to understand why some nearby towns enjoyed working electricity, clean running water, and efficient sewage and garbage removal, while others lacked basic utilities and roads.

“I’ve always been interested in understanding how, within the same country, you can have these disparities,” she says. “Some places had a lot of public services, while others were completely deprived.”

That childhood curiosity sparked a research agenda to answer these questions, leading to a paper that examines how electoral integrity—or lack thereof— influences the quality of services officials deliver once in office. The results offer a reason for optimism at a time when cynicism and discontent about public officials worldwide runs high.

Using the 2019 mayoral election in Colombia as a test, Garbiras-Díaz and Mateo Montenegro, assistant professor at the Toulouse School of Economics, led an experiment that reduced the prevalence of electoral irregularities. In a follow-up paper, “Electoral Integrity and Local Development: Experimental Evidence from Colombia,” they show how fairer elections put higher-quality leaders into office, and how much those leaders improved infrastructure.

“For citizens, I believe it’s important for them to feel that democracy is responding to them,” she says. “We found that one of the ways we can restore trust in democracy is when democracy delivers.”

For citizens, I believe it’s important for them to feel that democracy is responding to them. We found that one of the ways we can restore trust in democracy is when democracy delivers.

Garbiras-Díaz presented the findings of this research paper in June at the Annual Meeting of the European Political Science Association.

A civic tech tool with real impact

The researchers partnered with an NGO that created a platform called “Pilas con el voto,” or “Watch out for the vote,” to encourage citizens to report irregularities like voter intimidation.

They randomized a social-media campaign to randomly selected municipalities; In 473 municipalities, they encouraged citizens to report irregularities through “Pilas con el voto,” while another 225 received a campaign reminding citizens of October elections.

To get the word out, the team launched a large-scale advertising campaign on Facebook and Instagram in the days leading up to the election, reaching about 4.4 million citizens, or a third of voters in the randomly selected municipalities. They varied their communication approaches to probe potential drivers of underreporting.

To document irregularities in 2019 elections, the team collected news accounts and reviewed voting data to identify statistical patterns of manipulation. They found that the campaign was successful in reducing electoral irregularities across multiple measures.

By the numbers

Garbiras-Diaz and Montenegro found that public services improved in communities where citizens are encouraged to report electoral irregularities.

16%
Increased waste collection in rural areas
4%
More nighttime lighting in rural and urban areas
3%
Better aqueduct maintenance in urban areas
2%
Steadier waste collection in urban areas
2%
More reliable sewage services in urban areas

Better leaders, better management

In a second phase of the study, researchers explore whether the cleaner elections influenced how well the newly elected governments delivered public goods and services in the four years that followed.

The authors created an index to measure changes in the quality of public services. The study found that access to services is higher in municipalities where they launched the 2019 social media campaign to report irregularities through the Pilas con el Voto website. Reducing election fraud activities, such as vote buying and political violence, increased the proportion of Colombians with access to essential public infrastructure, including waste collection, aqueducts, and nighttime lighting.

Furthermore, in those municipalities, the winning candidates were more efficient and less wasteful. Those “cleaner” mayors more frequently used competitive procurement methods, such as auctions, and reduced their use of direct contracts, which are frequently linked to corruption.

During the study period, the value of competitive contracts increased by 2.3%, while the value of direct contracts decreased by 3.1%. There were also fewer corruption-related judicial processes in the areas that used the platform.

The research team continued to test their findings in 2023 and found that service improvements endured with better election monitoring and civic engagement.

Virtuous and vicious cycles

What emerges is a “virtuous cycle” where fair and honest elections elevate leaders who govern more effectively. That, in turn, reinforces the benefits of fair and honest elections.

The political economy, Garbiras-Díaz says, consists of a “selection” channel—elections to choose the best leaders—and an “accountability” channel that motivates those leaders to perform, driven by the prospect of the next election. Misinformation, disinformation, and corruption distort the system.

The goal, Garbiras-Díaz says, is to create a mechanism that helps rebuild trust in the process. Because too often today, “poor service delivery leads people to think that democracy doesn’t work for them,” she says. “This then leads to disengagement … and hinders their ability to make a change. This is the vicious cycle I want to break.”

The study's results reinforced her belief that elections serve as a key inflection point in governance. Even small interventions, the study shows, can begin to restore integrity and faith.

“We can unleash the good things democracy can do for its citizens,” she says. “Ultimately, I’m interested in making sure people believe democracy can deliver.”

Image created for HBSWK with asset from AdobeStock.

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