Debt and Profit Rate: A Heterodox Model of Financial Instability ABSTRACT: The purpose of this paper is to extend the Minskyan tradition of financial instability to the scope of a Cambridgian model with a quasi-complete saving function. First, we show that an important part of Minskyan contributions suffer from the lack of attention towards a complete analysis of agents’ saving behaviours. Second, we propose a dynamic model which takes these remarks into account and introduces explicitly the demand of investment goods, trying thus to generalize some more recent heterodox contributions.