[[the problem of coordination]]
==Settings of Deliberation==
[[Structures ===Converging Discussion===Due to the problem of deliberation]]selecting from multiple of choices (eg Condercent-arrow problem of social choice<ref>David van Mill, ‘The Possibility of Rational Outcomes from Democratic Discourse and Procedures’, Journal of Politics 58 (1996), 734-52. </ref><ref>Dryzek, J. S., List, C., & others. (2003). Social choice theory and deliberative democracy: a reconciliation. British Journal of Political Science, 33(1), 1–28. see the intoduction until reference 22</ref>) we need converging discussion.
===Releted Matrials===
[[Limitations on group size]]