We propose to employ a mechanism widely used in the experimental economics literature – the Becker, De-Groot, Marschak (Becker et al. 1964) mechanism, or the BDM. The BDM approach provides an explicit measure of the personal cost of transfers of private income to the public pool. The information provided by the BDM approach utilises a direct mechanism which is aligned with real-world decisions regarding entering income into the public account of the household or keeping it private. In this case the willingness to pay (WTP) for keeping endowments private reflects both the difference in preferences for expenditures combined with a lack of agreement on how income should be spent within the household (i.e. allocated to public versus private expenditures).
Endowments used for these components will be worth approximately 1 to 3day’s labour wages, or 15,000 and 30,000 Ushs. The person obtaining the initial endowment (the ‘participant’ in the BDM game) will be randomly selected using stratification across genders (male vs. female) ensuring balance in the sample of male-senders and female-senders (200 of each) for the BDM mechanism treatments.