A New Formulation of Interest-Bearing Capital and Debt: A Marxian Perspective on the Circuit of Capital

This article refines the analysis of interest-bearing capital and debt in Marx’s circuit of capital, incorporating Kōzō Uno’s critique for a more precise depiction. It reassesses Marx’s model of interest-bearing capital () and Uno’s distinction between creditor and debtor roles, proposing an advanced model that highlights the role of financial instruments () and debt (). The form of money-lending capital for the creditor is articulated as , where represents the issuance of a loan and the collection of debt. On the other hand, the form of merchant capital with debt for the debtor is depicted as , incorporating both the borrowing () and repayment () processes within the form of merchant capital. This approach not only clarifies the transactions between creditors and debtors but also builds upon Uno’s theoretical contributions, offering a comprehensive framework for understanding the dynamics of interest-bearing capital and the movement of capital with debt. The revision aims to elucidate the processes of loan issuance, debt collection, borrowing, and repayment, rectifying previous conceptual oversights and offering a solid foundation for future economic research.