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Financial constraints over the traditional sources of funds, coupled with increasing demand for infrastructure have forced the governments of developing countries to seek Private Participation in Infrastructure (PPI) development. As such Project Finance (PF) modalities such as BOO/BOT and its variants are found to be the most commonly adopted ones for private Power Projects (PPs). However, a critical look into the economic impact of alternative financing mechanisms for infrastructure is still required, although much has been written on the evaluation of PPI. This paper examines broader economic implications originating from five basic channels associated with PF transactions in private PPs. To achieve this objective, an analytical framework with theoretical foundation is developed to review empirically evidence of BOO/BOT type PPs. While economic cost factors reflect characteristics of PF and have bearing on the direct parties to the transaction, economic benefits of PF for PPs seem largely attributable to the host country. Findings further reveal that domestic financing, institutional support and proper balancing of the implications of PF mechanisms could mitigate the negative impact on the price of private power on many consumers. Limitations in achieving sustainable private power generation are largely attributable to the absence of more effective reforms to facilitate PF transactions in host countries.

Expressway construction projects are one of the crucial infrastructure projects for a country. Hence, assessment of environmental and social implications prior to initiation of the expressway construction project is vital. Thus, the research aims to analyse effect of social and environmental factors on expressway construction in Sri Lanka. Initially a comprehensive literature review was done to discuss on expressway construction in Sri Lanka and environmental and social implications of expressway construction in global context. The study followed a qualitative approach. Hence, four expert interviews were carried out to explore more on the same context limiting to Sri Lanka. Experts were selected from only on-going expressway project in Sri Lanka, central expressway project. Moreover, collected data were analysed through manual content analysis. The study findings highlighted viaduct construction, land acquisition and rock blasting as the major activities relating to environmental implications of the expressway construction projects. Thus, rational, logical, scientific, and technical selection of the routes is the most effective and efficient mean in minimizing adverse impacts. Hence planning of these activities should be done with due care by authorities only after proper feasibility studies. Further, major factors affecting social implications of the expressway construction have been identified as settlement, livelihood, public infrastructure and health and safety. Hence, resettlement action plans need to be updated to comply with the identified requirements through environmental and social factors.