In economics, an excess supply, economic surplus [1] market surplus or briefly supply is a situation in which the quantity of a good or service supplied is more than the quantity demanded, [2] and the price is above the equilibrium level determined by supply and demand. That is, the quantity of the product that producers wish to sell exceeds the quantity that potential buyers are willing to buy at the prevailing price. It is the opposite of an economic shortage (excess demand).
In cultural evolution, agricultural surplus in the Neolithic period is theorized to have produced a greater division of labor, resulting in social stratification and class.[ not verified in body ]
Prices and the occurrence of excess supply illustrate a strong correlation. When the price of a good is set too high, the quantity of the product demanded will be diminished while the quantity supplied will be enhanced, so there is more quantity supplied than quantity demanded. The occurrence of excess supply either leads to the lowering of the price or unsold supply, the latter reflecting excess supply. Lowering the price of a good encourages consumers to purchase more and suppliers to produce less.
A disequilibrium occurs due to a non-equilibrium price giving a lack of balance between supply and demand. [3] Excess supply is one of the two types of disequilibrium in a perfectly competitive market, excess demand being the other. When quantity supplied is greater than quantity demanded, [4] the equilibrium level does not obtain and instead the market is in disequilibrium. An excess supply prevents the economy from operating efficiently.
Excess supply in a perfectly competitive market is the "extra" amount of supply, beyond the quantity demanded. As an example, suppose the price of a television is $600, the quantity supplied at that price is 1000 televisions, and the quantity demanded is 300 televisions. This illustrates that sellers are seeking to sell 700 more televisions than buyers are willing to purchase. Hence, an excess supply of 700 televisions exists, indicating that the market is in a state of disequilibrium. In this situation, producers would not be able to sell all the televisions they produce at the desired price of $600. This will induce them to reduce their price in order to make the product more attractive for the buyers. In response to the reduction in the price of the product, consumers will increase their quantity demanded and producers will not produce as many as before. The market will eventually become balanced as the market is transitioning to an equilibrium price and quantity. [5]
Excess supply in one market can affect supply or demand in another market. For example, when there is excess supply in the labor market—that is, unemployment—consumer-laborers will be constrained in their disposable income and hence will demand a smaller quantity of goods at any given price. This diminished goods demand resulting from a constraint in another market is known as the effective demand for goods.
The main case is probably that suppliers cannot perfectly predict the market (unpredictable events, which leads to changes of supply or demand). Even perfect screening of market is not possible.
Another problem which lead to excess supply is that suppliers are not able to quickly adapt to new situations. Suppliers have large stocks of goods and they cannot sell it with old price all. They cannot usually immediately change volume of production, especially if production process is really long.
Here are some examples of why demand may decline and thus excess supply is created:
Here are some examples of why supply may raise and thus excess supply emerge:
According to Steven Ricchiuto if the economy is stuck in a rut of excess supply, then slow growth and deflation will persist. Furthermore, the higher prices will have a negative effect on consumers, while producers will be left with excess inventories until the market corrects itself entirely.
One of the possible consequences is that producers need to lower their prices, which may lead to that they lower wages or they fire some employee. On a global scale if there is excess of supply (globally) then most people get less money and they can buy even less, so the excess of supply gets even worse, luckily as goes time producers will lower their production to get the market to equilibrium. If the production can not be reduce as quickly it can lead to economic crises, which will be more dangers for global economy.
Agricultural producers are the ones that have to deal with excess supply most of the time. A good harvest will most likely result in excess supply, thus, when weather conditions are optimal a situation of excess supply arises. Therefore, agricultural producers are left with excess inventories that are quickly perishable. In this case we cannot expect that the market will correct itself; these goods are perishable and the market needs time to correct itself, furthermore, the competition between producers won't be enough to reduce the price until it gets to the equilibrium as there is not enough time. In this situation the government can choose to step in, and help agricultural producers by buying the excess inventories. However, this gives rise to another problem, and that is the fact that the government has to spend a part of its budget that could have been used for any other purpose that could have given more benefits to the economy. The consequences is that the government has to increase its spending on something that will only benefit agricultural producers.
During the COVID-19 pandemic, many examples of excess supply were seen. Firstly, the limited mobility of people across borders, due to pandemic measures, contributed to labour shortages; especially in the agricultural sector. The shift of demand and the disruption of supply chains led to excess supply seen in industries that could not adapt to the new norm caused by the global pandemic. [6]
The 2020 Russia–Saudi Arabia oil price war is a perfect example of excess oil supplied by these two countries. After failing to reach an agreement the OPEC+ alliance was disbanded, and shortly after Russia increased its production of oil, Saudi Arabia followed and a price war emerged. This combined with the lower demand for oil, caused by the pandemic, led to excess supply with prices even going negative on the 20th of April. Even after Russia and Saudi Arabia reached an agreement to cut oil production, excess supply was still present.
The best way how to prevent excess supply is to find an optimal production plan for the specific products for example based on historical data. As in the above example with ice cream sell note Xt the count of scoops that ice creamer sold in the t-th week of the year. For future times is Xt random process. We can figure out the probability distribution of Xt based on historical data. If in previous years were sold 53,56,55,57 scoops in week 27 it's not really probably that in 27th week this year will sell over 100 scoops. One of the ways how to estimate how much ice cream prepare for next week is to do the mean of historical values. Another approach is to extrapolate the data 53,56,55,57 for example using some regression. The best way is surely to maximize expected profit. In this case, we also need to estimate the probability distribution of the count of scoops that will be sold next week.
On the other hand (if we talk about demand) encouraging customers to buy things, for example, sales are a great instrument that allows sellers to reduce inventory as well as other marketing techniques such as 2+1, black Fridays and night shopping.
Generally, if we look at theorems in paragraph causes and we improve them or reverse them it helps to avoid excess supply, so financial and economic stability contributes to stable demand so as inflation (money yesterday have less value so it's better to spend them today).
Finally if it is possible to make production more flexible,
According to Steven Ricchiuto individual states solve excess supply with devaluing their currency in hopes that they can push the problem of excess capacity onto the country with the strongest currency.
Countries can also use some of these methods in order to prevent excess supply:
Microeconomics is a branch of economics that studies the behavior of individuals and firms in making decisions regarding the allocation of scarce resources and the interactions among these individuals and firms. Microeconomics focuses on the study of individual markets, sectors, or industries as opposed to the economy as a whole, which is studied in macroeconomics.
In microeconomics, supply and demand is an economic model of price determination in a market. It postulates that, holding all else equal, the unit price for a particular good or other traded item in a perfectly competitive market, will vary until it settles at the market-clearing price, where the quantity demanded equals the quantity supplied such that an economic equilibrium is achieved for price and quantity transacted. The concept of supply and demand forms the theoretical basis of modern economics.
In economics, deadweight loss is the loss of societal economic welfare due to production/consumption of a good at a quantity where marginal benefit does not equal marginal cost – in other words, there are either goods being produced despite the cost of doing so being larger than the benefit, or additional goods are not being produced despite the fact that the benefits of their production would be larger than the costs. The deadweight loss is the net benefit that is missed out on. While losses to one entity often lead to gains for another, deadweight loss represents the loss that is not regained by anyone else. This loss is therefore attributed to both producers and consumers.
In mainstream economics, economic surplus, also known as total welfare or total social welfare or Marshallian surplus, is either of two related quantities:
A price is the quantity of payment or compensation expected, required, or given by one party to another in return for goods or services. In some situations, especially when the product is a service rather than a physical good, the price for the service may be called something else such as "rent" or "tuition". Prices are influenced by production costs, supply of the desired product, and demand for the product. A price may be determined by a monopolist or may be imposed on the firm by market conditions.
In economics, economic equilibrium is a situation in which economic forces such as supply and demand are balanced and in the absence of external influences the values of economic variables will not change. For example, in the standard text perfect competition, equilibrium occurs at the point at which quantity demanded and quantity supplied are equal.
In classical economics, Say's law, or the law of markets, is the claim that the production of a product creates demand for another product by providing something of value which can be exchanged for that other product. So, production is the source of demand. In his principal work, A Treatise on Political Economy, Jean-Baptiste Say wrote: "A product is no sooner created, than it, from that instant, affords a market for other products to the full extent of its own value." And also, "As each of us can only purchase the productions of others with his/her own productions – as the value we can buy is equal to the value we can produce, the more men can produce, the more they will purchase."
In economics, effective demand (ED) in a market is the demand for a product or service which occurs when purchasers are constrained in a different market. It contrasts with notional demand, which is the demand that occurs when purchasers are not constrained in any other market. In the aggregated market for goods in general, demand, notional or effective, is referred to as aggregate demand. The concept of effective supply parallels the concept of effective demand. The concept of effective demand or supply becomes relevant when markets do not continuously maintain equilibrium prices.
In economics, market clearing is the process by which, in an economic market, the supply of whatever is traded is equated to the demand so that there is no excess supply or demand, ensuring that there is neither a surplus nor a shortage. The new classical economics assumes that in any given market, assuming that all buyers and sellers have access to information and that there is no "friction" impeding price changes, prices constantly adjust up or down to ensure market clearing.
A demand curve is a graph depicting the inverse demand function, a relationship between the price of a certain commodity and the quantity of that commodity that is demanded at that price. Demand curves can be used either for the price-quantity relationship for an individual consumer, or for all consumers in a particular market.
A price floor is a government- or group-imposed price control or limit on how low a price can be charged for a product, good, commodity, or service. It is one type of price support; other types include supply regulation and guarantee government purchase price. A price floor must be higher than the equilibrium price in order to be effective. The equilibrium price, commonly called the "market price", is the price where economic forces such as supply and demand are balanced and in the absence of external influences the (equilibrium) values of economic variables will not change, often described as the point at which quantity demanded and quantity supplied are equal. Governments use price floors to keep certain prices from going too low.
Monetary disequilibrium theory is a product of the monetarist school and is mainly represented in the works of Leland Yeager and Austrian macroeconomics. The basic concepts of monetary equilibrium and disequilibrium were, however, defined in terms of an individual's demand for cash balance by Mises (1912) in his Theory of Money and Credit.
In economics, a price mechanism refers to the way in which price determines the allocation of resources and influences the quantity supplied and the quantity demanded of goods and services. The price mechanism, part of a market system, functions in various ways to match up buyers and sellers: as an incentive, a signal, and a rationing system for resources.
In economics, a shortage or excess demand is a situation in which the demand for a product or service exceeds its supply in a market. It is the opposite of an excess supply (surplus).
In economics, tax incidence or tax burden is the effect of a particular tax on the distribution of economic welfare. Economists distinguish between the entities who ultimately bear the tax burden and those on whom the tax is initially imposed. The tax burden measures the true economic effect of the tax, measured by the difference between real incomes or utilities before and after imposing the tax, and taking into account how the tax causes prices to change. For example, if a 10% tax is imposed on sellers of butter, but the market price rises 8% as a result, most of the tax burden is on buyers, not sellers. The concept of tax incidence was initially brought to economists' attention by the French Physiocrats, in particular François Quesnay, who argued that the incidence of all taxation falls ultimately on landowners and is at the expense of land rent. Tax incidence is said to "fall" upon the group that ultimately bears the burden of, or ultimately suffers a loss from, the tax. The key concept of tax incidence is that the tax incidence or tax burden does not depend on where the revenue is collected, but on the price elasticity of demand and price elasticity of supply. As a general policy matter, the tax incidence should not violate the principles of a desirable tax system, especially fairness and transparency. The concept of tax incidence is used in political science and sociology to analyze the level of resources extracted from each income social stratum in order to describe how the tax burden is distributed among social classes. That allows one to derive some inferences about the progressive nature of the tax system, according to principles of vertical equity.
Walras's law is a principle in general equilibrium theory asserting that budget constraints imply that the values of excess demand must sum to zero regardless of whether the prices are general equilibrium prices. That is:
In economics, supply is the amount of a resource that firms, producers, labourers, providers of financial assets, or other economic agents are willing and able to provide to the marketplace or to an individual. Supply can be in produced goods, labour time, raw materials, or any other scarce or valuable object. Supply is often plotted graphically as a supply curve, with the price per unit on the vertical axis and quantity supplied as a function of price on the horizontal axis. This reversal of the usual position of the dependent variable and the independent variable is an unfortunate but standard convention.
In economics, profit is the difference between revenue that an economic entity has received from its outputs and total costs of its inputs, also known as surplus value. It is equal to total revenue minus total cost, including both explicit and implicit costs.
Disequilibrium macroeconomics is a tradition of research centered on the role of deviation from equilibrium in economics. This approach is also known as non-Walrasian theory, equilibrium with rationing, the non-market clearing approach, and non-tâtonnement theory. Early work in the area was done by Don Patinkin, Robert W. Clower, and Axel Leijonhufvud. Their work was formalized into general disequilibrium models, which were very influential in the 1970s. American economists had mostly abandoned these models by the late 1970s, but French economists continued work in the tradition and developed fixprice models. Other approaches that focus on the dynamic processes and interactions in economic systems that are constantly changing and do not necessarily settle into a stable state are discussed as non-equilibrium economics.
This glossary of economics is a list of definitions containing terms and concepts used in economics, its sub-disciplines, and related fields.
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