NBIM is a scenario model that simulates decision-making by domestic and foreign investors whether to invest in biofuel projects in a developing country. The model is useful for rapidly exploring the implications of broad types of policies by seeing how they perform in a simulation. NBIM cannot be used to evaluate specific policies or to make projections, but it can be used to gain insight. NBIM is a dynamic model that features “boom and bust” investment cycles. For this reason, you might see investment peaking and then falling. Also, you might see some land that was converted to biofuel feedstocks being idled as feedstock prices fall too low. NBIM is open-source and free.