Money is an indispensable part of our modern world, serving as the operating system for global economic transactions and social linkages. However, despite its pivotal role, the nature and functions of money have been subjects of intense, unresolved debates spanning centuries. This article delves into the various theories of money and its functions, providing a comprehensive overview for students.
Unpacking the Puzzles of Money: An Introduction to its Theories and Functions
Money's fundamental importance is undeniable, linking the present to possible futures and enabling large-scale societies. Yet, its true essence remains puzzling, sparking intellectual and political disputes traceable to ancient Greece. While we experience money as a powerful force, capable of making the world go around, mainstream economic theory often views it as a 'neutral' or passive element, merely an 'oil' that smooths trade, not a 'wheel' itself. This perspective, known as the Classical Dichotomy, posits that money doesn't influence 'real' factors of production like labor or technology in the long run.
The Classical Dichotomy and Neutral Money
Classical economics, solidified by Adam Smith and David Hume, sees money as a "garb" or "veil" over the truly important economic processes. Joseph Schumpeter famously summarized this 'real analysis' view: money is a technical device to facilitate transactions and does not affect the economic process, which would behave the same in a barter economy. This concept of neutral money suggests that real economic value comes from physical capital and labor, not from money itself. In mathematical models, money is a constant, not an active variable.
However, an alternative perspective, 'monetary analysis,' championed by figures like Keynes and pre-classical business practitioners, argues that money is a dynamic, independent economic force—money-capital. It's the 'social technology' without which physical capital cannot be mobilized. This distinction highlights a core 'incompatibility' in economic thought: whether money is merely a facilitator (C-M-C: Commodity-Money-Commodity) or a goal of production (M-C-M: Money-Commodity-Money, seeking profit).
Functions of Money: Walker's Four Pillars
Exasperated by perpetual wrangling over money's nature, American economist Francis Amasa Walker proposed a deceptively simple solution in 1878: "money is what money does." He described four key functions of money:
- Money of account/measure of value: A numerical measure for economic calculation, pricing goods, and recording wealth.
- Means of payment: For settling all debts denominated in the same money of account.
- Medium of exchange: Something universally accepted in exchange for all other commodities.
- Store of value: A repository of purchasing power, allowing for deferred consumption and investment.
While widely accepted, Walker's list masks deeper theoretical conflicts, particularly between commodity and credit theories of money. For instance, is 'moneyness' constituted by all functions, or do some take primacy? Commodity theory emphasizes the medium of exchange, while credit theory focuses on the means of payment.
Two Incompatible Theories: Commodity vs. Credit
The longstanding intellectual disputes about money broadly reflect two opposing general intellectual positions: materialism and naturalism versus nominalism and social constructionism. These underpin the 'incompatible' commodity and credit theories of money.
Commodity Theory and Metallism: Intrinsic Value
Commodity theory, closely associated with Aristotle and Adam Smith, posits that money originated in barter. Rational individuals, seeking to maximize self-interest, eventually settled on the most tradable commodities (like iron nails or gold) as a universal medium of exchange. These commodities were held for their 'intrinsic' value or usefulness. This 'creation myth' was popularized by William Stanley Jevons, illustrating how money spontaneously emerged to overcome the "double coincidence of wants" problem in barter.
Key characteristics of commodity theory and its offshoot, metallism:
- Intrinsic value: Money's value derives from the material it's made of (e.g., gold).
- Portability, divisibility, durability: Precious metals possess these qualities, making them ideal for coinage.
- Quantity theory of money: Price levels are determined by the exchange ratio of quantities of commodity money and goods (MV=PT, where quantity of money is causal for inflation).
- Banking as intermediation: Banks are seen as intermediaries, collecting existing money from savers and lending it to borrowers, not creating new money.
John Locke, a proponent of metallism, argued that silver's quantity was the measure of its intrinsic value, dismissing attempts to alter a coin's nominal value independently of its metal content. However, this view struggled to explain the circulation of paper notes and bills not fully backed by precious metals.
Credit and State Theories of Money: Abstract Value and Authority
In stark contrast, credit theory and state theory of money (also known as chartalism or monetary nominalism) argue that money's value is abstract, socially and politically constructed, rather than intrinsic. It is a 'claim' or 'credit' that settles debt.
Key aspects of credit and state theories:
- Money of Account is Primary: As Keynes argued in A Treatise on Money, the money of account (the unit in which debts and prices are expressed) is the primary concept. Money 'proper' can only exist in relation to this nominal unit.
- Abstract Value: Money is an 'intangible, immaterial, abstract' promise to pay or satisfy a debt, not a material thing with intrinsic value. "The eye has never seen, nor the hand touched a dollar," noted Alfred Mitchell Innes.
- Debt-driven Value: The value of money is given by the existence of debts it can cancel. A monetary transaction is the settlement of a debt with a credit.
- Endogenous Money Creation: Banks are producers of 'purchasing power,' creating new credit money through lending (deposits) based on trust and confidence, rather than just intermediating existing funds. This is known as 'endogenous' money creation.
- State Authority: Georg Knapp's State Theory of Money emphasizes money as a legal construct, devised and enforced by the state. The state declares what counts as money (the money of account) and accepts only this money for tax payments. This provides a compelling basis for acceptance without relying on intrinsic value.
- 'Imaginary Money': Historical examples, like Charlemagne's de-linking of money of account from coined currency, show that nominal units can function independently of material coins, leading to the concept of 'imaginary' or 'ghost' money.
- Money as a Weapon: Both Keynes and Weber highlighted that theories of money are ideological and intertwined with power struggles. Money is a 'weapon' in the 'struggle for economic existence,' with different interests (e.g., creditors vs. debtors, 'Wall Street' vs. 'Main Street') advocating for either 'sound' gold-backed money or flexible credit money.
Flashcards
Tap to flip · Swipe to navigate
The Role of Money in Economic Stability and Instability
Understanding the nature of money is crucial for grasping phenomena like inflation and financial crises. The 'neutral' money concept implies money can be removed from politics and simply managed by experts to ensure the 'right amount' is created.
Inflation and Monetary (Dis)Order
Money's social nature makes it sensitive to self-fulfilling fluctuations in value. Inflation (and hyperinflation) can lead to social and political disintegration. While commodity/quantity theory simplifies inflation to "too much money chasing too few goods," modern analysis offers more nuanced views:
- Cost-push inflation: Prices are driven up by increases in production costs (labor, capital, materials) when enterprises are at full capacity.
- Demand-pull inflation: Excess demand from households, businesses, and governments for a finite supply of goods bids up prices.
- Expectations: Expectations of future price rises can accelerate inflation, a factor eventually acknowledged by orthodoxy and integrated (sometimes ironically) into theories like 'rational expectations'.
However, the simple linear relationship between money quantity and prices is often challenged, as seen in subdued inflation despite loose monetary policy or chronic deflation unresponsive to monetary stimuli. This highlights the complexity and "unknown unknowns" in monetary management.
Money and Power
Beyond technical economic functions, money is a source of social power—both 'infrastructural' (getting things done) and 'despotic' (controlling people). The power to create money is fundamental and shared between states and the banking system in modern capitalism. Money-creating power is an essential element of state sovereignty, yet it's also tied to debt, creating an inequality between creditors and debtors.
The 'money question' is inherently political: who controls its creation, for what ends, and in what quantities? Debates between those advocating monetary expansion (Keynesian camp) and those prioritizing inflation avoidance (classical orthodoxy) reflect deep societal interests.
The Future of Money: Digital and Beyond
Technological changes, such as the rise of digital money and cryptocurrencies like Bitcoin, further challenge traditional conceptions. These 'virtual' forms complicate the distinction between 'money' and 'credit' and raise questions about how concepts like 'quantity' and 'velocity' apply. The persistence of these unresolved disputes underscores that money is not just a technical device but a contested terrain central to society's political struggles.
FAQ: Understanding Money for Students
What are the main theories of money?
The main theories are the Commodity Theory of Money (money derives value from its material, like gold, emerging from barter) and the Credit/State Theory of Money (money is an abstract social construct, a 'claim' or 'credit' whose value is given by the existence of debts it can cancel, and is enforced by state authority).
What are the four functions of money?
Money serves four primary functions: as a measure of value (or money of account), a means of payment, a medium of exchange, and a store of value.
What is the 'Classical Dichotomy' in economics regarding money?
The 'Classical Dichotomy' is the idea in mainstream economics that the real economy (production, consumption, resource allocation) is independent of the monetary economy. It suggests that money is 'neutral' and only affects nominal variables (like prices) but not real variables (like output or employment) in the long run.
How does 'monetary analysis' differ from 'real analysis'?
'Real analysis' views money as a passive veil over real economic activity, while 'monetary analysis' (associated with Keynes and others) sees money as an active, dynamic force – 'money-capital' – essential for setting the economy in motion and influencing real outcomes like employment and growth.
Why is money considered a 'social technology'?
Money is called a 'social technology' because it is a human invention that facilitates complex social and economic interactions, enabling large-scale societies and global trade. It requires collective acceptance and trust, often backed by the authority of a state or community, to function effectively.