In many cultures and industries gifts are given in order to influence the recipient, often at the expense of a third party. Examples include business gifts of firms and lobbyists. In a series of experiments, we show that, even without incentive or in-formational effects, small gifts strongly...

We study experimentally whether anti-corruption policies with a focus on bribery might be insufficient to uncover more subtle ways of gaining an unfair advantage. In particular, we investigate whether an implicit agreement to exchange favors between a decision-maker and a lobbying party serves...

In many developing countries, we observe rather high levels of corruption. This is surprising from a political economy perspective, as the majority of people generally suffers from high corruption levels. We explain why citizens do not exert enough political pressure to reduce corruption if...