A Spatial Analysis of the Xiii Italian Legislature

SESS Working Paper, 2006

41 Pages Posted: 28 Sep 2006

See all articles by Massimiliano Landi

Massimiliano Landi

Singapore Management University - School of Social Sciences

Riccardo Pelizzo

Nazarbayev University


We present a spatial map of the Italian House of Deputies during the XIII Legislature obtained by applying the Poole and Rosenthal methodology to roll call data. We estimate coordinates for almost all the 650 Deputies that were on the House's floor at the time, and we aggregate them according to parties. We find that voting patters generate basically a two dimensional political space. The first dimension represents loyalty to either the ruling coalition or the opposing one. The second dimension is represented by the European Union. These findings are consistent with the exceptional case of the party Northern League, which at the time did not belong to either coalition, and presented itself as a northern, separazionist, and anti-system party.

Keywords: political space, left-right, italian parliament

JEL Classification: D72

Suggested Citation

Landi, Massimiliano and Pelizzo, Riccardo, A Spatial Analysis of the Xiii Italian Legislature. SESS Working Paper, 2006, Available at SSRN: https://ssrn.com/abstract=933308

Massimiliano Landi (Contact Author)

Singapore Management University - School of Social Sciences ( email )

469 Bukit Timah Road
Federal Building #02-05
Singapore, 259756

Riccardo Pelizzo

Nazarbayev University ( email )

53 Kabanbay Batyra Avenue
Astana, 010000

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