Standard elicitation approaches used to obtain quantitative information typically assumes that individuals can provide a precise value. For unfamiliar (as as well as familiar) goods, this is a strong assumption. We suggest they use of self-selected intervals, in which the shortest possible...

An adapted version of ”the trust game with revenge” is applied to a Swedish setting. Senders - the first-movers - can keep an endowment of SEK 30, or give fractions or all to an unknown receiver. Donations are multiplied by five before reaching receivers, who may, or may not, send back part...