Leveraging on CTUM’s network, we liaise with 28 unions at the factory-level that are affiliated with the CTUM. This sample consists of most of the garment sector factories affiliated with CTUM in the Yangon and Bago Regions of Myanmar. Each union participates in data collection sessions over the course of two sessions held across two weekends. In Session 1, the union’s president and its leadership team, “line leaders” (LLs) are invited to participate. In order to select LLs to participate, we randomly select sewing lines where LLs work to participate in the study. To randomly select sewing lines, we stratify lines by quartiles of proportion of workers unionized. In factories with low (<20%) or high (>80%) unionization rates, we oversample from the underrepresented group of workers (union members or nonmembers, respectively).
In Session 1, union leaders take a survey, and we conduct two experiments. We conduct a mobilization and a real effort experiment where union presidents invite LLs to mobilize workers to come on Sundays to participate in the CTUM’s research activities. We also conduct a “leading by example” experiment where union leaders receive an extra sum of money and then are asked to donate to CTUM-related public good under different conditions of observability by workers. We stratify LLs’ assignment to these experiments by their union.
In addition, to ensure sample representativeness, we randomly sample workers inside the factories, stratifying on factory, sewing line, union membership, and skill level. LLs are responsible to invite those workers on their line who are randomly selected to participate.
In Session 2, we implement two surveys: one on union membership, leadership and skill assessment and one on living costs. We leverage this data collection to embed experiments among the set of CTUM’s activities dedicated to raise workers’ awareness and elicit workers’ views on the minimum wage level: (1) a discussion experiment where we experimentally manipulate the presence of LLs to facilitate small group discussions on the preferred and expected minimum wage revision among diverse workers; (2) a public good game where workers receive an extra sum of money and they are asked to donate to CTUM-related public good under different signals of union leaders’ contributions; and (3) a “mobilization and coordination” experiment in which union line leaders motivate and/or coordinate members of small groups of workers to participate in the living cost survey. Note: At time of registration, due to possible time constraints, there is uncertainty whether the “mobilization and coordination” experiment will be implemented. This protocol will be updated as soon as possible to reflect the whether it remains part of the study.