Experimental Design
The experiment features 13 treatments:
Control
$2500 matched-saving incentive, without reminder
$2500 matched-saving incentive, with reminder
$2500 matched-saving incentive, with option to receive costly (price=$1000) reminder
$2500 matched-saving incentive, with option to receive costly (price=$2000) reminder
$5000 matched-saving incentive, without reminder
$5000 matched-saving incentive, with reminder
$5000 matched-saving incentive, with option to receive costly (price=$1000) reminder
$5000 matched-saving incentive, with option to receive costly (price=$2000) reminder
$10000 matched-saving incentive, without reminder
$10000 matched-saving incentive, with reminder
$10000 matched-saving incentive, with option to receive costly (price=$1000) reminder
$10000 matched-saving incentive, with option to receive costly (price=$2000) reminder
All monetary values are in Colombian Pesos.
In the treatment groups (groups 2-13), subjects are required to save $5,000 in order to qualify for the match. All subjects in the thirteen experimental conditions were contacted by a call center that informs them about the existing incentives for saving (described below). In the 12 treatment conditions, these groups are further informed about the corresponding matching offer.
If subjects are in group 3, 7, or 11, they receive an SMS reminder about the matching offer 7 weeks after they have been contacted and one week prior to the expiration of the offer..
If subjects are in group 4, 5, 8, 9, 12, or 13, they only receive the reminder if they choose to receive it when they are first contacted by the call center. Choosing the reminder comes at a cost: subjects pay a price p={$1,000, $2,000} that is subtracted from their match. Subjects in groups 2, 6, and 10 are not offered a reminder.