Prize-linked Savings Initiatives for Promoting Better Health and Economic Outcomes in Kenya

Impact Research & Development Organization, Innovations for Poverty Action, Bill and Melinda Gates Foundation

Transactional sex is widely believed to be among the driving factors for the high HIV rates among adolescent girls and young women in Kenya. We will pilot a randomized trial among men in Kenya to assess whether prize-linked savings opportunities reduce spending on transactional sex. The project will randomize men to the savings intervention and assess changes in key economic and self-reported health outcomes over a 3-6 month period.

Despite a large decline in new adult HIV infections in eastern and southern Africa from 2005-2015, progress has slowed in recent years. In particular, HIV risk among adolescent girls and young women remains high. Transactional sex, or the exchange of material support in non-commercial sexual relationships, is widely believed to be among the main driving factors for the HIV risk in this population. There is a large gap when it comes to interventions targeting men who engage in transactional sex. The proposed pilot project seeks to fill this important gap by using behavioral economic principles to promote behavior change among men. The project will assess a novel prize-linked savings intervention designed to shift men's income away from alcohol and transactional sex and towards saving for the future. Prize-linked savings accounts offer savers a random, lottery-like payout proportional to the amount participants save, instead of traditional interest income. A number of banks, employers, and policymakers have promoted this low-cost, scalable approach to increasing savings among low-income individuals. However, there have been no assessments of whether prize-linked savings interventions can induce changes in key health-related behaviors as well. We will conduct a pilot randomized trial among men in Kenya to assess whether offering prize-linked savings opportunities leads to reduced spending on alcohol and transactional sex. The project will enroll men who in communities with high HIV risk, randomize them to the savings intervention, and assess changes in key economic and self-reported health outcomes over a 3-month period with baseline and follow-up surveys. We hypothesize that men randomized to the prize-linked savings intervention will have higher savings, lower expenditure on transactional sex, alcohol, and gambling, and lower rates of participation in risk behaviors such as transactional sex, relative to men randomized to the standard bank account control group.

Participants in the intervention group will be assisted with opening bank accounts at the partner bank and will be eligible for monetary rewards linked to the amount they save in these project accounts. During the intervention period, information about participants' savings activities will be shared with the study team at regular intervals by the bank. Winners will learn of their prize via text message and will have their prize money deposited into their accounts. Respondents who did not win the lottery will also receive a text message, which will remind them to save.

Participants will be eligible for prizes based on the amount by which their account balance goes up in each period (e.g. for every 100 Ksh by which savings increases, participants get an entry into a lottery for monetary rewards where they have a small probability of winning a larger amount, or a larger probability of winning a smaller amount of money). This type of prize-linked savings intervention has been shown to promote savings in other settings. Other intervention components may include education materials to explain how the prize-linked savings incentives work and that emphasize the potential benefits of saving money. Participants in the intervention group will be encouraged to have more consideration for their future health and economic status, as this may motivate them to save more money. They will also be encouraged to consider the opportunity and health cost of their expenditures on alcohol and transactional sex and not miss the opportunity to win prizes by saving money.

Participants will be eligible for prizes based on the amount by which their account balance goes up in each period (e.g. for every 100 Ksh by which savings increases, participants get an entry into a lottery for monetary rewards where they have a small probability of winning a larger amount, or a larger probability of winning a smaller amount of money). This type of prize-linked savings intervention has been shown to promote savings in other settings. Other intervention components may include education materials to explain how the prize-linked savings incentives work and that emphasize the potential benefits of saving money. Participants in the intervention group will be encouraged to have more consideration for their future health and economic status, as this may motivate them to save more money. They will also be encouraged to consider the opportunity and health cost of their expenditures on alcohol and transactional sex and not miss the opportunity to win prizes by saving money.

This is a binary variable equal to 1 if the respondent's savings balance increased over the study period, and zero otherwise.

Net increase in both the savings balance and in self-reported total savings from all sources, in each lottery period and over the entire study period

Inclusion Criteria: Resident in selected shoreline communities and their hinterlands in Siaya County, Kenya Male Age 21 years and above Primary or secondary occupation is fishing or transportation (i.e. motorbike taxi driver) Owns mobile phone Is willing to open savings account with a local bank and has, or is willing to obtain, the necessary documents (national identification card, Kenya Revenue authority PIN) to do so Exclusion Criteria: Planning to relocate from study communities in the next 6 months Does not express willingness to open a savings account

Moscoe E, Agot K, Thirumurthy H. Effect of a Prize-Linked Savings Intervention on Savings and Healthy Behaviors Among Men in Kenya: A Randomized Clinical Trial. JAMA Netw Open. 2019 Sep 4;2(9):e1911162. doi: 10.1001/jamanetworkopen.2019.11162.