Some resources on PR and electoral reform

Alan Renwick The Politics of Electoral Reform: Changing The Rules of Democracy 2010 ISBN 978-1-107-40325-3, hardcover 978-0-521-7530-5

from Wiki "Electoral system":

A few scholars also studied which effects caused a nation to switch to a particular electoral system:

Arend Lijphart (1985) "The Field of Electoral Systems Research: A Critical Survey" Electoral Studies, Vol. 4

Arend Lijphart (1992) "Democratization and Constitutional Choices in Czecho-Slovakia, Hungary and Poland, 1989–1991" ''Journal of Theoretical Politics'' Vol. 4 (2), pp. 207–23

Stein Rokkan (1970) ''Citizens, Elections, Parties: Approaches to the Comparative Study of the Process of Development'', Universitetsforlaget

Ronald Rogowski (1987) "Trade and the Variety of Democratic Institutions", ''International Organization'' Vol. 41, pp. 203–24

[[Carles Boix]] (1999) "Setting the Rules of the Game: The Choice of Electoral Systems in Advanced Democracies", ''American Political Science Review'' Vol. 93 (3), pp. 609–24

Haven't looked for these online but might be interesting if we could get access.

the periodical "Electoral Studies" might be very interesting.

also see Montopedia blog "Old Books..."

=========================