Using a unique dataset we are able to examine the determinants of identities in Sudan. We find that identification in Sudan is high and that there is little evidence that such identities compete with one another. In terms of socio-economic variables, poorer people tend to have greater identification. Tribal identification declines with the level of education, as does identity with religion and ...

We investigate the parameterized complexity of strategic behaviors in generalized scoring rules. In particular, we prove that the manipulation, control (all the 22 standard types), and bribery problems are fixed-parameter tractable for most of the generalized scoring rules, with respect to the number of candidates. Our results imply that all these strategic voting problems are fixed-parameter t...

We study the complexity of bribery in a network-based rating system, where individuals are connected in a social network and an attacker, typically a service provider, can influence their rating and increase the overall profit. We derive a number of algorithmic properties of this framework, in particular we show that establishing the existence of an optimal manipulation strategy for the attacke...

With the acceleration of China's opening-up, number and scale multinational corporations' investment projects in China are constantly increasing. However, order to obtain greater benefits Chinese market, some corporations choose seek illegitimate commercial interests through bribery. The increasing corruption cases transnational have bad influences on economic development, business environment ...

Corruption often involves bribery, when a briber suborns power-holder to gain advantages usually at cost of moral transgression. Despite its wide presence in human societies, the neurocomputational basis bribery remains elusive. Here, using model-based fMRI, we investigated neural substrates how decides accept or reject bribe. Power-holders considered two types brought by taking bribes: connivi...