| Carlin and Love (2013) |
United States |
Partisan information (Independent, Democrat, or Republican) and anonymous. |
Both players begin each game with an allotment of 10 virtual lottery tickets. Each ticket has an equal chance of winning one of three $100 prizes. Given the tripling aspect of the game, the maximum number of tickets any subject could obtain is 40 per game; the minimum is 0. Each lottery ticket expected value/utility is $300/total number of tickets. Each player’s expected participation utility is $2.17 ($300/138). |
Partisan differences in Player 1 ticket allocations: Co-partisans minus rival partisans (1.62), co-partisans minus anonymous (.58). |
Partisan differences in the percentage of tickets Player 2 returns: Co-partisans minus rival partisans (2.3), copartisans minus anonymous (1.4) |
| Stanley et al. (2011) |
United States |
Race treatment (black and white) |
Participants were endowed with $30. They were explicitly told that money was theirs to keep and asked to put it with the rest of their money, wherever they kept it (e.g., wallet). Then, they were then told that any money they shared would be quadrupled and then belong to the partner, who had already decided either to share it with them (50/50) or to keep it all. |
On average, black and white partners were offered similar amounts of money. The overall mean offer ($0-$10) was $3.77. |
N/A |
| Tsutsui and Zizzo (2014) |
England |
Main treatments. 84 (majority and minority, equal status, two frames -Blue and Red-), S4 (majority high status, one frame - Blue- and minority low status - Not Blue-) and in S8 (majority low status and minority high status, one frame -Blue-). Control treatments. 44 and 88 (able to control for absolute group size effects with the two frames). 66 (to control for the change in the absolute number of people participating in each experimental session). And B with no frame and no groups. |
Stage 1: The truster received 24 experimental points. In stages 2, 3, and 4, the trusters were allocated 48 points. We used experimental points’ as currency, each worth 4 UK pence (0.04 pounds, USD 0.052). |
Stage 1: .562 (B), .457 (66 ), .433 (88 ), .350 (44 ), .367 (84 ), .477 (S8 ), and .413 (S4 ). Stage 2-4: In-Group: .449 (66 ), .348 (88 ), .344 (44 ), .333 (84 ), .334 (S8 ), and .319 (S4 ). Out-Group: .288 (66 ), .289 (88 ), .249 (44 ), .265 (84 ), .296 (S8 ), .213 (S4 ). |
Stage 1: .318 (B), .219 (66 ), .270 (88 ), .304 (44 ), .226 (84 ), .270 (S8 ), and .238 (S4 ). Stage 2-4: In-Group: .200 (66 ), .185 (88 ),.187 (44 ), .177 (84 ), .204 (S8 ), and .170 (S4 ). Out-Group: .106(66 ), .161 (88 ), .110 (44 ), .148 (84 ), .168 (S8 ), .151 (S4 ). |
