However, it is worthwhile noting that countries with low public capital efficiency can also generate high returns on investment since those countries usually lack capital (Berg and others, 2015). Therefore, policies on infrastructure investment need to be examined within the broader context of public policymaking in order to encourage a design of policies that complement each other in enhancing efficiency. The impact will include: (a) increasing GDP growth and employment generation through enhanced connectivity and production networks, (b)fostering social development through improved access to public services and new opportunities, and (c) improving environmental sustainability through low-carbon, resource-efficient and climate-resilient societal order.