The performance of concession contracts is largely influenced by optimality of risks allocation between the public and private partners. Individual partner needs postmortembased knowledge of operating concession contracts to serve as a guide in risks preference. This paper examined risk allocation of two concession contracts in Lagos State with a view to developing a framework for enhanced risk allocation using case study research method. Lekki Infrastructure Project (LIP) and General Aviation Terminal Building of Murtala Mohammed Airport (MMA2) project were used as case studies. Study population comprised key public and private sectors participants who were principals, regulatory agencies, promoters, contractors, consultants, credit lenders and facility users. The study made used of primary data collected through structured questionnaire and unstructured interview. The survey responses were statistically analysed using Risk Allocation Index (RAI) which is simple majority rule of e50% consensus among respondents. Twenty five (25) risks associated with concession projects were identified, and evaluated by surveyed respondents on how the risks should have been allocated based on the performance of the projects since inception to date. Findings revealed that nine risks were preferred to the private sector; six to the public sector; five to be shared between the public and private sectors; while five were to be determined by project portfolios. Finance and constructionrelated risks were preferred to be allocated to the private sector; political and macroeconomic risks were preferred to the public sector; post construction and operating risks should be shared among the sectors whereas designrelated risks were to be projectspecific. Therefore, extensive risk management is recommended for project specific risks.
Keywords: Allocation, Concession, Framework, Public and Private Partners, Risks