In the following lecture by Sheena Iyengar, from Colombia Business School, the cultural differences between how people deal with choices is explored. Sheena's work may be relevant to democracy and how it is applied in different cultures (Switzerland? Afghanistan?). She also touches on the relevance of choice to performance and happiness.
Within the proposed Interactive Democracy system, choices are effected by debate, leadership and data. The politicians may act as expert advisers and those that don't want to choose may devolve their vote to other people within the liquid leadership system.