The rules for "Two positions" are these:

• The point of departure is a work of political science.
•  Erik Moberg writes a comment on the work.
• When Moberg has written his comment it is published here on this site, and simultaneously the author to the commented work is invited to reply. After this Moberg's comment will not be changed, irrespective of what the invited author has to say.
• The reply of the invited author will be also be published here without any changes, exactly as he or she wants to have it. The reply must not, however, be considerably longer than Moberg's original comment.
• Any further comments than the two ones mentioned are not admitted. The invited author thus gets the last word.
• If the invited author does not want to reply, this is indicated.

Works treated:

• Arend Lijphart, Patterns of Democracy - Government Forms and Performance in Thirty-Six Countries
• G. Bingham Powell, Elections as Instruments of Democracy - Majoritarian and Proportional Visions
• Leif Lewin, Self-Interest and Public Interest in Western Politics
• Bo Rothstein, The Universal Welfare State as a Social Dilemma