majority coalition can be stable, provided that reciprocity is sufficiently strong and widespread. In addition, a stable … minority coalition can exist, even with weak reciprocity preferences. This latter coalition is weakly larger than the maximum …

is scarce. We conducted a controlled field experiment in collaboration with sales agents of a multinational consumer … products company to study the influence of small gifts on the outcome of business negotiations. We find that small gifts matter … of their negotiations. However, we also find that small gifts tend to be counterproductive when purchasing and sales …

is scarce. We conducted a controlled field experiment in collaboration with sales agents of a multinational consumer … products company to study the influence of small gifts on the outcome of business negotiations. We find that small gifts matter … of their negotiations. However, we also find that small gifts tend to be counterproductive when purchasing and sales …

. We conducted a natural field experiment in collaboration with sales agents of a multinational consumer products company … to study the influence of small gifts on the outcome of business negotiations. We find that small gifts matter. On … their negotiations. However, we also find that small gifts tend to be counterproductive when purchasing and sales agents …