The article argues that secondary effect is a missing element in project evaluation. The notion of “secondary effect” refers to the effect other than primary objectives of a development project. It is expected that understanding the mechanism of secondary effect helps not only avoiding severe consequences imposed on societies, but also enhancing full capacity of ODA infrastructure projects in relation to sustainability. To clarify the mechanism, the research framework is developed with a premise that secondary effect can occur at the time that either social needs or problems are formulated, or decisions regarding technological alternatives and development activities are being made, or final goods and services (such as physical infrastructure) are being used. With a brief survey of case studies, the research framework is elaborated into three stages: making, utilizing, and framing. The article, then, presents a result of literature review and illustrates some examples of insights that analytical concepts in Science and Technology Studies contribute to this research.
ODA Projects, Sustainable Development, Infrastructure, Secondary Effects, International Cooperation