Cameron Miranda
Supply creates its own demand is a formulation of Say's Law, which states that the supply of a good or service creates demand for that good or service. In other words, simply producing a good is enough to create a demand for it. This theory was first introduced by Jean Baptiste Say, a classical French economist who studied the nature of markets and their behaviour. Say's Law is a part of classical economics, which was the prevailing belief system during the 18th and early 19th centuries. The rejection of this doctrine is a central component of The General Theory of Employment, Interest and Money, and a central tenet of Keynesian economics.
| Characteristics | Values |
|---|---|
| Name | Say's Law |
| Other Names | Say's Law of Markets |
| First Appearance | The exact phrase "supply creates its own demand" first appeared in a 1934 letter by Keynes. However, similar sentiments can be found in the work of John Stuart Mill (1848) and his father, James Mill (1808). |
| Classical Expression | James Mill, in Commerce Defended (1808): "The production of commodities creates, and is the one and universal cause that creates a market for the commodities produced." |
| Colloquial Expression | "Supply creates its own demand" |
| Interpretation | Keynes's interpretation is rejected by many economists as a misinterpretation or caricature of Say's law. |
| Critics | John Keynes is one of the most important critics of Say's Law. |
| Rejection | The rejection of this doctrine is a central component of The General Theory of Employment, Interest and Money (1936) and a central tenet of Keynesian economics. |
| Proponents | Today, the advocacy of the phrase "supply creates its own demand" is most associated with supply-side economics. |
Explore related products
$22.42 $27.5
What You'll Learn
Say's Law of Markets
Say's Law holds that economic agents must first produce goods and services before they can consume them. The income generated from production is then used to purchase goods and services, creating demand. This is based on the assumption that markets clear and that businesses produce goods that are demanded by the market. Say's Law also assumes that flexible prices for goods, wages, and capital adjust naturally to surpluses or shortages, maintaining balance in the economy.
Say's Law has been a key element in classical economics and the laissez-faire belief that a capitalist economy naturally tends towards full employment. It is often summarised by the statement, "all purchasers must first be producers, as only production can generate the power to purchase."
However, Say's Law has faced criticism, most notably by John Maynard Keynes, who rejected the doctrine in his work "The General Theory of Employment, Interest and Money" (1936). Keynesians argue that Say's Law is incorrect because some income is saved for future consumption, which can lead to deficient aggregate demand and recessions.
Despite the criticism, Say's Law continues to be a subject of debate between Keynesian and neoclassical economists, and it provides important insights into market operations and the relationship between supply and demand.
Diversity Laws: A Historical Workplace Perspective
You may want to see also
Explore related products
Classical economics
While the exact phrase "supply creates its own demand" does not appear in the writings of classical economists, the idea is attributed to classical economics. This idea is known as Say's Law, named after French classical economist and journalist Jean-Baptiste Say. According to Say's Law, the income generated by the production and sale of goods is the source of spending that creates demand for current production. In other words, a person's ability to demand goods or services is based on the income produced by their past production.
Say reasoned that to have the means to buy, a buyer must first have sold something. This implies that production is the key to economic growth and prosperity, and government policy should encourage production rather than consumption. Say's Law was the prevailing belief system during the 18th and early 19th centuries and fit into classical economic theories. It is important to note that Keynes, in his 1936 book "General Theory of Employment, Interest and Money," reinterpreted and argued against Say's Law, and his interpretation has been widely accepted within mainstream economics.
Say's Law can be understood through the following quote by John Stuart Mill, which captures the essence of the idea:
> "Nothing is more true than that it is produce which constitutes the market for produce, and that every increase of production, if distributed without miscalculation among all kinds of produce in the proportion which private interest would dictate, creates, or rather constitutes, its own demand."
John Stuart Mill's father, James Mill, expressed similar sentiments in his 1808 work "Commerce Defended." However, Keynes did not provide specific citations for the phrase, and its ultimate origin remains a mystery.
Who Creates Statutory Laws and Why?
You may want to see also
Explore related products
Keynesian economics
The phrase ""supply creates its own demand" is a formulation of Say's Law, which is a part of classical economics. This law was rejected by John Maynard Keynes, whose ideas formed the basis of Keynesian economics. Keynes's work was influenced by the Great Depression, during which unemployment rose to 25% in the United States and as high as 33% in some countries. Keynes's theories challenged the then-prevailing idea that free markets would automatically provide full employment.
Keynesian models of economic activity also include a multiplier effect, wherein output changes by some multiple of the increase or decrease in spending that caused the change. For example, a one-dollar increase in government spending may result in an increase in output greater than one dollar. Keynesian economics also views money supply as one of the main determinants of the state of the real economy. The liquidity preference function specifies the amount of money people will seek to hold according to the state of the economy.
The Red Planet's Legal System: Who Decides?
You may want to see also
Explore related products
Classical economists' views
Classical economists believe that the economy will operate with maximum efficiency within the production possibilities curve, with no unemployment, and at full employment. Classical economists, such as James Mill and David Ricardo, expanded on the views of French classical economist and journalist, Jean-Baptiste Say, who first articulated Say's Law in his 1803 book, "Treatise on Political Economy, Or, The Production, Distribution, and Consumption of Wealth".
Say's Law of Markets is a classical economic theory that states that the income generated by past production and the sale of goods is the source of spending that creates demand to purchase current production. In other words, the ability to purchase something depends on the ability to produce and thereby generate income. According to Say, a buyer must first have produced something to sell, and the source of demand is production, not money itself. Say reasoned that money functions solely as a medium to exchange the value of previously produced goods for new goods as they are produced and brought to market.
Say's Law argues that in a free-market economy, over the long term, the levels of supply and demand will generally balance each other out due to market forces, leading to an equilibrium state. This implies that production is the key to economic growth and prosperity, and that government policy should encourage (but not control) production rather than consumption. Say's Law suggests that the act of producing goods generates income, which in turn creates market demand. It also suggests that every sale represents income to someone and thereby stimulates demand in the economy. For example, when a farmer produces and sells wheat, the money earned is not only his income but also allows him to purchase other goods, thus generating demand.
Say's Law was later summarised by economist John Maynard Keynes in his 1936 book, "General Theory of Employment, Interest and Money", as "supply creates its own demand". Keynes reinterpreted Say's Law as a statement about macroeconomic aggregate production and spending, in disregard of Say's clear and consistent emphasis on the production and exchange of various particular goods against one another. Keynes then concluded that the Great Depression appeared to overturn Say's Law.
How Congress Crafts Laws
You may want to see also
Explore related products
Supply-side economics
A fundamental principle of supply-side economics is the Laffer curve, which illustrates the theoretical relationship between taxation rates and government revenue. The Laffer curve suggests that when tax levels are too high, lowering tax rates will increase government revenue through higher economic growth. Economist Arthur Laffer is credited with developing this curve. Supporters of supply-side economics argue that tax cuts will increase tax revenues by incentivising those with higher incomes to increase investments and produce more goods and services. They also argue that tax cuts will reduce tax avoidance activity.
However, critics of supply-side economics contend that the benefits of such policies disproportionately favour wealthier individuals, exacerbating economic inequality. They also argue that lowering tax rates beyond a certain level will have destructive long-term effects. Keynesian economists, for example, hold that consumers and their demand for goods and services drive the economy, contrary to the supply-side view that producers and their willingness to create goods and services are the primary drivers of economic growth.
Despite the ongoing debates, supply-side economics has significantly influenced US financial policy, particularly during the 1980s under President Ronald Reagan, who embraced supply-side economic theory as the framework for his economic policies. Between 1981 and 1986, the federal income tax rate was reduced from 70% to approximately 33%. Supply-side economics also gained prominence worldwide during the late 1980s, with many countries reducing their tax rates.
The Law of Definite Proportions: John Dalton's Legacy
You may want to see also
Frequently asked questions
This is a reference to Say's Law, which states that supply creates its own demand.
The idea is attributed to Jean-Baptiste Say, a classical French economist. The phrase "supply creates its own demand" first appeared in a letter written by John Maynard Keynes in 1934. However, similar ideas can be found in the work of James Mill (1808) and John Stuart Mill (1844 and 1848).
Say's Law holds that in a free market, producers will generate only what they believe can be sold, thus creating a demand for the products they supply. It also suggests that a person's ability to demand goods and services is a direct result of the production activities they have undertaken.
Say's Law describes the unfolding market process, stating that "all purchasers must first be producers, as only production can generate the power to purchase." This means that production comes first, and demand follows the wealth created from production.
