Rival Theories of Money and Credit
A Clash of Paradigms: Money and the Battle for Economic Truth
Is money merely a neutral medium of exchange, or is it a driving force of business cycles?
This book is a doctoral thesis that was written in the context of the 1980s impact of Postmodernist Philosophy on the social sciences in general, and on economic reasoning in particular. Epistemological relativism, as it was known, argued that multiple interpretations of the causes of economic phenomena can coexist because they are explained by rival economic theories, which in turn possess independent standards for validating their propositions. Therefore, postmodernists believed that there are no universal standards to adjudicate between competing interpretations of social and economic phenomena. This implied that the propositions of one theory cannot be compared with those of another in terms of their relationship to a sensory state of reality, since each theory is generated by a different paradigm that is constituted by a distinct epistemology and methodology. Consequently, these paradigms effectively insulate themselves from rival theories and create their own realities. To test this abstract relativist claim of Postmodernist Philosophy, this book first unravels the metaphysical, epistemological, and methodological foundations of two rival economic theories and then outlines the monetary theories that were generated by those philosophical foundations.
I employ the economic reasoning of two towering intellectuals, Alfred Marshall and Karl Marx as a case study to test the proposotions of Postmodernist Philosophy. They both crafted theories that would shape economic thought for generations. Alfred Marshall, the founder of Microeconomics, saw money as a neutral tool, an instrument of efficiency in the great machinery of market transactions. Karl Marx saw it as a volatile force, inseparable from the monetary and credit crises generated within the capitalist mode of prodcution.
The Great Divide: How Economics Became a Battleground
Long before the emergence of formal economics, the wealth and well-being of individuals and societies were subjects of deep contemplation. From the poetic reflections of ancient Mesopotamians to the moral inquiries of Greek philosophers, thinkers sought to understand the forces that shaped human welfare.
As market economies expanded in the 17th and 18th centuries, thinkers like John Locke and David Hume began to isolate economic activity from the broader social fabric. By the time Adam Smith penned The Wealth of Nations, the discipline of political economy had taken shape. Smith and his successors saw economic processes as governed by natural laws. They were predictable, mechanical, and self-regulating. This perspective would become the foundation of classical and neoclassical economics, culminating in Marshall’s framework of supply and demand, marginal utility, and economic equilibrium.
To Karl Marx, these natural laws were nothing more than ideological constructs designed to mask the realities of "capitalist exploitation". In his view, economic forces were not neutral; they were shaped by historical struggles, class relations, and the ever-changing dynamics of production. Money was not a passive medium, but was a tool of power, wielded by those who controlled capital and labor, whose business decisions determined the level of output, employment, and the severety of economic crises.
This fundamental divergence in perspective was a clash between two visions of the world. Marshall´s vision was rooted in equilibrium and efficiency, while Marx´s vision was rooted in conflict and transformation. To understand why these rival theories emerged and why they persist today, the book delves deeper into the philosophical underpinnings of economic thought.
The Power of Perspective: Epistemology, Methodology, and the War Over Economic Truth
Why do economic theories disagree? Why do rival schools of thought coexist for centuries without resolution? Is economic theory merely a reflection of reality, or does it actively shape the way we perceive and construct that reality? These questions lie at the heart of this work.
At its core, this work explores how different epistemologies (i.e. theories of knowledge) give rise to competing methodologies and ultimately to divergent economic theories. Marshall, following the empiricist tradition of John Stuart Mill, relied on observation, induction, and mathematical models to construct his economic framework. He sought to uncover stable patterns and principles that could guide economic policy and practice.
Marx, in contrast, drew from Hegelian dialectics, emphasizing historical development, contradiction, and the dynamic interplay of social forces. He rejected the idea of a static economic order and instead viewed capitalism as an evolving system, driven by inherent tensions that would ultimately lead to its transformation.
This book argues that these differing epistemologies shaped their respective theories of money in profound ways. Marshall’s money was neutral, an instrument of exchange that facilitated transactions without fundamentally altering the production process. Marx’s money was dynamic, a disruptive force that reflected and reinforced the social relations of capitalism. Yet, both produced similar explanations of credit crises.
The Stakes: Why This Debate Still Matters
The question of money’s role in the economy has real-world consequences. From financial crises to debates over monetary policy, from inflation fears to calls for economic justice, the assumptions we make about money shape the policies we adopt and the futures we create.
After dissecting the epistemological and methodological foundations of the two rival theories, revealing the intellectual forces that sustain economic disputes, the concluding chapter employs an excercise that shows, while the competing theories of money developed by Alfred Marshall and Karl Marx are rooted in fundamentally different epistemological and methodological traditions traceed from the intellectual developments of the Enlightenment, those philosophical systems are surmountable if there exists a will to understand the substance of the testable and verifiable propositions of each tradition.
Marshall’s analysis is shown to rest on an empiricist epistemology and an inductive–deductive–inductive method. Knowledge is derived from sensory observation, and economic explanation proceeds by identifying regularities in observed behavior and combining them into general laws. Within this framework, money serves primarily as a methodological device for measuring and transmitting individual motives. Because production and exchange are ultimately governed by psychological incentives, money remains a neutral medium whose quantity affects prices but not real output or employment. Marshall’s approach preserves the original meaning of observed phenomena throughout the analytical process and therefore treats economic change largely as quantitative rather than qualitative.
Marx’s approach is founded on a different conception of knowledge. Human beings create meanings through their social practices, and these meanings constitute the reality that economic analysis seeks to understand. His dialectical method reconstructs the historical development of social relations by moving from abstract categories to increasingly concrete forms. Money is therefore interpreted as a social relation embedded within the institutional structure of production. Under capitalism, money acquires the power to command labor and becomes capital. Because it functions simultaneously as a means of circulation and a store of value, its withdrawal from circulation can disrupt production, generate crises, and contribute to unemployment.
The concluding chapter argues that these divergent interpretations arise from their distinct philosophical foundations. This observation initially appears to support the view that rival theories survive because each is protected by its own epistemological criteria of truth and validity. Such a conclusion would imply that competing paradigms are largely insulated from one another and cannot be evaluated by common standards.
The analysis of Chapter Seven challenges this position. It demonstrates that Marx’s theory of money can be reconstructed within Marshall’s philosophical framework, whereas Marshall’s interpretation reflects the limitations of an empiricist methodology that does not readily generate multiple meanings for economic phenomena. Marshall’s treatment of money as a simple medium of exchange is therefore not a necessary consequence of his philosophical premises. Rather, it results from a methodological tendency to preserve established meanings and to neglect the evolving social functions of money.
From this perspective, the two theories are not incommensurable. They can be compared and assessed against one another. I conclude that Marx’s theory is analytically superior because it incorporates a broader range of economic experience, particularly the role of money in generating crises, unemployment, and instability. Marshall’s framework, by contrast, abstracts from the institutional and monetary features of capitalism and effectively reduces production to a system resembling barter exchange. Consequently, it offers limited insight into the dynamics of monetary economies and provides a weak foundation for economic policy.
The central implication of the study is that epistemological and methodological commitments play a decisive role in shaping economic theory, but they do not render competing theories immune from critical evaluation. Once subjected to such evaluation, Marx’s conception of money emerges as a more comprehensive account of capitalist production and its social consequences than Marshall’s theory of neutral money. Morevoer, the final chapter shows that philosophical foundations are surmoutable and one can cross over from one paradigm to the other, provided one has an open mind to this possibility and stritcly appeals to facts and reason during to such process of crossing over.
The conclusion of the intellectual excercise of employing one paradigm to arrive at the substantive propositions of the rival theory suggests that intellectuals cannot employ the notion of epistemological relativism as an immunizing strategum to shield their propositions from criticisms, comparisons, and adjudications.