 A considerable amount of the literature in political science and the economic theory of the state are grounded in the assumption that individuals act primarily and perhaps even exclusively in their self-interest narrowly construed. The problem of participation and the accounts of the democratic process described above are in large part dependent on this assumption. When the preferences of voters are not assumed to be self-interested the calculations of the value of participation change. For example, if a person is a motivated utilitarian, the small chance of making a difference is coupled with a huge accumulated return to many people if there is a significant difference between alternatives. It may be worth it in this case to become reasonably well informed (Parfit 1984: 74). Even more weakly altruistic moral preferences could make a big difference to the rationality of becoming informed, for example if one had a preference to comply with perceived civic duty to vote responsibly (see  section 4.3.1 for discussion of the duty to vote). Any moral preference can be formulated in consistent utility functions.