The Green Bank of Caraga, along with researchers, designed and implemented a commitment savings product called a SEED (Save, Earn, Enjoy Deposits) account. The SEED account provides individuals with a commitment to restrict access to their savings, thus potentially helping with either self-control or family-control issues. Each individual defines either a goal date or amount, and is subsequently unable to withdraw from the account until the goal is reached. Other than providing a possible commitment savings device, no further benefit accrued to individuals with this account: the interest rate paid on the SEED account is identical to the interest paid on a normal savings account (4 percent per annum).
Researchers trained a team of marketers hired by the partnering bank to visit the homes or businesses of existing bank clients in the commitment-treatment group, to stress the importance of savings to them. This process included eliciting the clients’ motivations for savings, and emphasizing to the client that even small amounts of saving make a difference; marketers then offered them the SEED product. Another group of individuals (the marketing-treatment group) received the exact same marketing script, but was not expressly offered the SEED product.
The field experiment sample consists of 1,777 Green Bank clients who have savings accounts in one of two bank branches in the greater Butuan City area, randomly selected for the baseline interview. A second randomization assigned these individuals to three groups: commitment-treatment (T), marketing-treatment (M), and comparison (C) groups. One-half the sample was assigned to T, and a quarter of the sample was assigned to each of groups M and C.
After one year, a follow-up survey was conducted to assess (1) inventory of assets (to measure whether the impact on savings represented a net increase in savings or merely a crowd-out of other assets); (2) impact on household decision making and savings attitudes; and (3) impact on economic decisions, such as purchase of durable goods, health, and consumption.