In the past decade, large infrastructure projects in the Netherlands have often been implemented through Public-Private Partnerships (PPPs), specifically using Design-Build-Finance-Maintain (DBFM) contracts. While the decision to implement projects through PPPs is based on expected advantages for internal parties – the public and private partners in the PPP –, there is a call for more focus on the advantages and disadvantages of PPPs for external stakeholders. External stakeholder management in DBFM projects is based on a contractual division of risks and responsibilities between the partners. However, it is clear from the literature that the contract does not guarantee successful stakeholder management. Relational aspects are important. Little research has been done, however, into the interplay of contractual and relational aspects in achieving successful stakeholder management. This article addresses this research need. A comparative case study was conducted into the PPP projects A9 Gaasperdammerweg and A16 Rotterdam. The study first shows that sanctions, when combined with a relational approach, have a positive effect on the relationships with stakeholders. Second, external stakeholder management cannot be simply outsourced to the private partner and continuous involvement of the public partner is important for success.

There is much research available about the development and government participation of new political parties (e.g. Pedersen, 1982; Deschouwer, 2008). Scholars show that survival for new political parties is often difficult, as they in general had little time for party building (Bollyer & Bytzek, 2017). Moreover, the expectation for specific types of new parties, mainly anti-establishment parties, is that they pay a high(er) electoral price when participating in government (Van Spanje, 2011). The Dutch case of the local political party of ‘Leefbaar Rotterdam’ (Livable Rotterdam, LR) is a noteworthy exception to this rule. It won the Rotterdam local election in 2002 with almost 35 percent of the votes, only months after its establishment. Until this day, LR remains an electorally large and relevant political party, participating in Rotterdam government twice (2002-2006 and 2014-2018). The article shows that in comparison to some national new political parties, LR succeeded in building a solid party organization and that from a party institutionalization perspective, it can be considered an institutionalized party. Regarding theory, it provides some additions to party building literature, such as the importance of personal relations and the balance between organizational unity and member autonomy.