This article proposes a new model of government formation: the Dual Power Base Model. The starting point is the median voter theorem, but an institutional limitation suggested by Laver and Shepsle (2000) is added. The claim is that it takes a certain number of MPs to cope with the practical tasks of running a government — that is, to have ‘Office Capacity’. If the median party has Office Capacity, the model predicts that the median party will form the government. If the median party does not have Office Capacity the median party will choose the closest party or parties that do have Office Capacity. This model is applied most thoroughly to government formation in Denmark, but also to the Norwegian and Swedish cases. When party positions are measured by previous voting behaviour on bills in parliament, the model explains 23 out of 25 government formations in Denmark in the period 1953 to 2007.
Andersen, Poul N. ( 1989) Det umuliges kunst: Erindringer fra dansk politik 1968-77 . Odense: Odense Universitetsforlag .
2.
Bergman, Torbjörn ( 2000) ‘Sweden: When Minority Cabinets are the Rule and Majority Coalitions are the Exception’, in Wolfgang C. Müller and Kaare Strøm (eds) Coalition Governments in Western Europe, pp. 192-230. Oxford: Oxford University Press.
3.
Betænkning nr. 1354 (1998) Forholdet mellem minister og embedsmænd: Betænkning fra Udvalget om forholdet mellem minister og embedsmænd. Copenhagen : Statens Information.
4.
Binderkrantz, Anne and Helle Carlsen ( 2002) ‘Når sammenholdet brydes: splittelser af partier i Danmark’, Politica34: 168-85.
5.
Black, Duncan ( 1958) The Theory of Committees and Elections. Cambridge: Cambridge University Press.
6.
Borre, Ole ( 2002) ‘Partivalg, politiske værdier og livsverdenens værdier’, in Peter Gundelach (ed.) Danskernes værdier 1981-1999, pp. 195-231. Copenhagen: Hans Reitzels Forlag.
7.
Cox, Gary W. and Mathew D. McCubbins ( 2005) Setting the Agenda: Responsible Party Government in the US House of Representatives. Cambridge: Cambridge University Press.
8.
Dam, Poul ( 1997) Hvem var Minister: Dansk politik gennem snart 150 år . Copenhagen: Forlaget Aros.
9.
Damgaard, Erik ( 1969) ‘The Parliamentary Basis of Danish Governments: The Patterns of Coalition Formation’, Scandinavian Political Studies4: 30-57.
10.
Damgaard, Erik ( 2000) ‘Denmark: The Life and Death of Government Coalitions’ , in Wolfgang C. Müller and Kaare Strøm (eds) Coalition Governments in Western Europe, pp. 231-63. Oxford: Oxford University Press.
11.
Damgaard, Erik and Jerrold G. Rusk ( 1976) ‘Cleavage Structures and Representational Linkages: A Longitudinal Analysis of Danish Legislative Behaviour’, in Ian Budge, Ivor Crewe and Dennis Farlie (eds) Party Identification and Beyond: Representations of Voting and Party Competition, pp. 163-88. London , New York, Sydney and Toronto: John Wiley & Sons.
12.
De Swaan, Abram ( 1973) Coalition Theories and Cabinet Formations: A Study of Formal Theories of Coalition Formation Applied to Nine European Parliaments after 1918. Amsterdam, London, New York: Elsevier.
13.
De Winter, Lieven ( 1991) ‘Parliamentary and Party Pathways to the Cabinet’ , in Jean Blondel and Jean-Louis Thiébault (eds) The Profession of Government Ministers in Western Europe, pp. 44-69. Houndmills: Macmillan.
14.
Downs, Anthony ( 1957) An Economic Theory of Democracy. New York: Harper and Row.
15.
Elklit, Jørgen ( 1999) ‘Party Behaviour and the Formation of Minority Coalition Governments: Danish Experiences from the 1970s and 1980s’, in Wolfgang C. Müller and Kaare Strøm (eds) Policy, Office, or Votes: How Political Parties in Western Europe Make Hard Decisions, pp. 63-88. Cambridge : Cambridge University Press.
16.
Folketinget, various years.
17.
Folketingstidende: Årbog & Registre, various years.
18.
Folketingsårbog, various years.
19.
Galton, Francis (1907) ‘One Vote, One Value’, Nature 75, 1948: 414.
20.
Hansen, Martin Ejnar ( 2006) ‘Er dårlige data bedre end ingen data? En diskussion af brugbarheden af de danske valgprogramdata’, Politica38: 210-23.
21.
Hotelling, Harold ( 1929) ‘Stability in Competition’, Economic Journal30: 41-57.
22.
Jensen, Torben K. ( 1993) Politik i praxis: Aspekter af danske folketingsmedlemmers politiske kultur og livsverden. Copenhagen: Samfundslitteratur.
23.
Kaarsted, Tage ( 1988) Regeringen, vi aldrig fik: Regeringsdannelsen 1975 og dens baggrund. Odense: Odense Universitetsforlag .
24.
Kaarsted, Tage ( 1992) De Danske Ministerier 1953-1972. Copenhagen : PFA Pension.
25.
Laver, Michael ( 1998) ‘Models of Government Formation’, Annual Review of Political Science1: 1-25.
26.
Laver, Michael and Ian Budge (eds) (1992) Party Policy and Government Coalitions . Houndmills: Macmillan.
27.
Laver, Michael and Kenneth A. Shepsle ( 1996) Making and Breaking Governments: Cabinets and Legislatures in Parliamentary Democracies. Cambridge: Cambridge University Press.
28.
Laver, Michael and Kenneth A. Shepsle ( 2000) ‘Ministrables and Government Formation: Munchkins, Players and Big Beasts of the Jungle’, Journal of Theoretical Politics12: 113-24.
29.
Laver, Michael and Norman Schofield ( 1990) Multiparty Government: The Politics of Coalition in Europe . Oxford: Oxford University Press .
30.
Mershon, Carol ( 1999) ‘The Costs of Coalition: A Five-Nation Comparison’ , in S. Bowler, D. M. Farrel and R. Katz (eds) Party Discipline and Parliamentary Government, pp. 227-65. Columbus, OH: Ohio State University Press.
31.
Müller, Wolfgang C. and Kaare Strøm ( 2000) Coalition Governments in Western Europe. Oxford: Oxford University Press.
32.
Müller, Wolfgang C. and Kaare Strøm ( 2000) ‘Coalition Governance in Western Europe: An Introduction’ , in Wolfgang C. Müller and Kaare Strøm (eds) Coalition Governments in Western Europe, pp. 1-31. Oxford: Oxford University Press.
33.
Müller, Wolfgang C. and Kaare Strøm ( 2000) ‘Conclusion: Coalition Government in Western Europe’ , in Wolfgang C. Müller and Kaare Strøm (eds) Coalition Governments in Western Europe, pp. 559-92. Oxford: Oxford University Press.
34.
Narud, Hanne M. and Kaare Strøm ( 2000) ‘Norway: A Fragile Coalitional Order’, in Wolfgang C. Müller and Kaare Strøm (eds) Coalition Governments in Western Europe, pp. 158-91. Oxford: Oxford University Press.
35.
Pedersen, Mogens N. ( 1967) ‘Partiernes holdning ved vedtagelsen af regeringens lovforslag 1945-66’, Historie7: 143-66.
36.
Pedersen, Mogens N., Erik Damgaard and Peter Nannestad Olsen ( 1971) ‘Party Distances in the Danish Folketing 1945-1968’ , Scandinavian Political Studies6: 87-106.
37.
Rasmussen, Hanne and Mogens Rüdiger ( 1990) Danmarks historie. Bind 8: Tiden efter 1945. Copenhagen: Gyldendal.
38.
Skjæveland, Asbjørn (2003) Government Formation in Denmark 1953-1998. Århus: Politica.
39.
Skjæveland, Asbjørn , Søren Serritzlew and Jens Blom-Hansen (2007) ‘Theories of Coalition Formation: An Empirical Test Using Data from Danish Local Government’, European Journal of Political Research46: 721-45.
40.
Svensson, Palle ( 1996) Demokratiets Krise? En debat- og systemanalyse af dansk politik i 1970’erne. Århus: Forlaget Politica.
41.
Van Roozendaal, Peter ( 1990) ‘Centre Parties and Coalition Cabinet Formations: A Game Theoretic Approach’, European Journal of Political Research18: 325-48.
