Kai Gehring, Stephan A. Schneider, 18 February 2020

Secessionist parties draw upon rhetoric on cultural identity and political autonomy to garner votes. However, the parties’ electoral success is also influenced by the availability of regional resources. This column examines two secessionist parties in the UK – the Scottish National Party and the Welsh Plaid Cymru – and the divergence in their performance following the discovery of oil within Scotland’s hypothetical maritime borders. It finds that a 10% increase in relative regional wealth is associated with an increase of 3 percentage points in the vote share of secessionist parties. Relative regional resource wealth is more important than absolute wealth, and changes in regional resource wealth only play a role when there is baseline support for secession.

Andrés Rodríguez-Pose, Marko Stermšek, 21 November 2014

One frequently used argument in favour of secession is that there are economic benefits from independence. However, whether or not this is the case remains largely unexplored. This column addresses this question by examining the economic implications of secession in the case of the former Yugoslavia. The authors find that independence had no favourable economic impact. The way secession was achieved, however, mattered. Whereas secession without real conflict did not leave any noticeable economic impact, violent secession has, by contrast, led to a significant destruction of wealth. 

CEPR Policy Research