The main objective of the present paper is to provide the reasons behind the rise and fall of resources for innovation policies in Brazil between 1999 and 2016. The paper also intends to provide a broad map of the financial relations between funding sources and financial agents in the Brazilian National System of Innovation (NSI). In order to do that, the paper uses mixed methods: a historical approach to cover the motivations of the political economy; principles of network analyses to map the institutional relations between funding sources and financial agents; and economic theory to understand the determinants of the cash flows that finance science, technology and innovation (STI) policies. The institutional arrangement of the Brazilian NSI led the financial cycle to rely, on a general level, on GDP dynamism; the strategy of selected public bodies; on the federal budget decision process; and on the external economic cycle. Between 2003 and 2014, political struggles led to economic policies that favoured GDP growth and public spending, while the opposite occurred from 2015 onwards. In general, institutions were not equipped to protect the financial resources from the political changes of the mid-2010s.
