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Thursday, July 23, 2020

Randomised Control Trials and the Alleviation of Poverty in India

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Sattva Vasavada
Sattva Vasavada
South Asia

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Sattva Vasavada

Article Title

Randomised Control Trials and the Alleviation of Poverty in India

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Global Views 360

Publication Date

July 23, 2020

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Poverty in India — A Representative Image

Poverty in India — A Representative Image | Source: Atul Kumar via Unsplash

Abhijit Banerjee and Esther Duflo won the 2019 Nobel Prize in Economics for their “experimental approach in alleviating global poverty”. Their experimental approach encompassed a variety of novel methods to understand and analyse interventions and Randomised Control Trials (RCTs). Their research has been used by policy makers to make informed policy decisions to best help the marginalised.

What are RCTs?

To understand the effect of a policy, intervention, or medicine, decision makers try to measure the efficacy of the treatment. Do deworming pills given to children improve test scores? Does providing chlorinated water improve the health and economic outcomes of villages? These are some causal (read causal, i.e. caused by, not casual) questions researchers are interested in. The best way to analyse causal effects is to randomise the selection of people in the treatment and the control group (for example: children who are given deworming pills versus children who are not given the pills). This random selection of the two groups removes many statistical biases that might affect the results.

RCTs in India:

Many of the RCTs performed by Banerjee and Duflo were in India. They involved short- and long-term impact assessments of various interventions, policies, models, and treatments. We look at a few RCTs implemented in India:

Teacher absenteeism rates:

Troubled by the low attendance rates (or high absence rates) of public-school teachers in India, Duflo assessed the impact of financial incentives on the absence rates of teachers in Rajasthan. The study monitored teacher attendance by cameras, which was tied to a financial incentive if the attendance was high. From a baseline absence rate of 44%, teacher absenteeism in the treatment group fell by 21%, relative to the control group. High teacher attendance caused child test scores to improve too.

COVID-19 and health-seeking behaviour:

In the context of COVID-19, Banerjee tested the effect of sending messages via SMS that promoted health preserving behaviour. The results were very positive. By sending a short, 2.5-minute clip to 25 million randomly selected individuals in West Bengal, the intervention i) found a two-fold increase in symptom reporting to village health workers, ii) increased hand washing rates by 7%, and iii) increased mask-wearing by 2%. While mask-wearing rates increased only marginally, the spillover effects (wearing a mask stops the virus from infecting more people) were moderately high and positive.

Asset Transfers and the Notion of Poverty:

An RCT by Banerjee in West Bengal involving a productive asset transfer accompanied with training found large and persistent effects on monthly consumption and other variables. The treatment group reported 25% higher consumption levels relative to the control group, who did not receive the asset transfer and training. Implications of such RCTs are huge. The notion that the poor are lazy and unwilling to perform strenuous labour is falsified by this RCT. Often, what the poor lack are opportunities that are hard to come by, given their financial status. A small nudge, like the asset transfer, can cause large and positive effects on their well-being.  

Salt fortification to reduce anaemia:

RCTs also help rule out less cost-effective interventions. Duflo and Banerjee evaluated an RCT which distributed fortified salt in 400 villages of Bihar, to reduce the prevalence of anaemia. However, this intervention found no statistically significant impact on health outcomes like anaemia, hemoglobin, etc.  Thus, while RCTs help introduce novel methods of impacting the lives of the poor, they also help in ruling out in-effective measures. A policy maker might try other alternatives to reduce the prevalence of anaemia.

Are RCTs the gold standard?

Maybe. Extrapolating results from a regional RCT to national policies could present problems. Contextuality matters. A study that indicates positive gains for one region might present different, and rather adverse effects for another region. Nation wide effects might not be as prominent as regional results of a single RCT. The good part is that Banerjee and Duflo have a solution. Just perform more RCTs!

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February 4, 2021 4:44 PM

Are Black Americans victims of Police Militarization in the US

In the USA, there are reports of police using tear gas, flashbangs, and many other weapons to fight against the riots which are occurring now in over 350 cities against police brutality against the Black Community. There have been many reports on how the police brutality is disproportionate in terms of race; the Black people are thrice as likely to have violence committed on them by the police force than the whites, and the factor is 1.5 for the Hispanics. There is a first-hand account of a person present in the recent protests who talks about the use of batons on demonstrators.

This, however, leads to the question whether it was the militarization of the police force that caused violence towards minority communities. The police militarization was, in the aftermath of the 9/11 US terrorist attack, justified by the policymakers as a necessary tool to prevent the terrorist attacks in the future. This policy decision led to the military grade weapons and military style training regime for the police force. Some of the states in the US partnered with highly militarized police of Israel for training their police force. Such lethal weapons which were provided to the police force  used against terrorists were gradually used by the police force against common civilians on suspicion of minor crimes and the group of protestors.

The civil right groups were voicing concerns for many years about the use of disproportionate force on the Black and Hispanic Americans, which they blamed on the arming of police with lethal weapons. It was the death of Michael Brown, an unarmed black teenager, who was shot and killed on Aug. 9, 2014, by Darren Wilson, a white police officer, in Ferguson, Montana, USA that galvanised the public to demand for demilitarization of police force. As a response to public anger against the killing of Michael Brown, President Obama set up a Task Force on 21st Century Policing. This task force, in its report put special emphasis on de-escalating situations, with civilians in training and policies, and reduced funding by the Department of Homeland Security for such weapons. However these recommendations failed to have much effect on solving the issues at hand.

The continued use of such lethal weapons casts the police force as a separate, powerful entity which is to be feared, instead of a friendly cop who is trying to provide security to a citizen in distress. Such equipment serves to distance the police from the people, giving them power, and if left unchecked, entitlement over the rest of the citizens. In many instances the presence of a weapon itself leads to more aggressive behaviour and there have been calls to make the police wear body cams to restrain them from acting with disproportionate lethal force.

The racial profiling and discriminatory actions against the black and other communities that was already practiced by the police forces was now being enforced by more lethal power in the force’s hands. A study by Olugbenga Ajilore shows that counties with more race segregation were more likely to request additional weapons, and counties with an African American/Asian American population are more likely to acquire military equipment. Another report of 2017 shows a direct correlation between the degree of police militarization and the killing of civilians in police action.

It can be reasonably said that the militarization, in some sense, inflated the already existing racial profiling based violent actions of police force.

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