Scarcity in the context of Silver (element)

Silver coins are one of the oldest mass-produced form of coinage. Silver has been used as a coinage metal since the times of the Greeks; their silver drachmas were popular trade coins. The ancient Persians used silver coins between 612–330 BC. Before 1797, British pennies were made of silver.

As with all collectible coins, many factors determine the value of a silver coin, such as its rarity, demand, condition and the number originally minted. Ancient silver coins coveted by collectors include the Denarius and Miliarense, while more recent collectible silver coins include the Morgan Dollar and the Spanish Milled Dollar.

Resource depletion occurs when a natural resource is consumed faster than it can be replenished. The value of a resource depends on its availability in nature and the cost of extracting it. By the law of supply and demand, the scarcer the resource the more valuable it becomes. There are several types of resource depletion, including but not limited to: wetland and ecosystem degradation, soil erosion, aquifer depletion, and overfishing. The depletion of wildlife populations is called defaunation.

It is a matter of research and debate how humanity will be impacted and what the future will look like if resource consumption continues at the current rate, and when specific resources will be completely exhausted.

Silver is a chemical element; it has symbol Ag (from Latin argentum 'silver') and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Silver is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining.

Silver has long been valued as a precious metal, commonly sold and marketed beside gold and platinum. Silver metal is used in many bullion coins, sometimes alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. In terms of scarcity, silver is the most abundant of the big three precious metals—platinum, gold, and silver—among these, platinum is the rarest with around 139 troy ounces of silver mined for every one ounce of platinum.

The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmospheric, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification. The majority of Earth's atmosphere (78%) is atmospheric nitrogen, making it the largest source of nitrogen. However, atmospheric nitrogen has limited availability for biological use, leading to a scarcity of usable nitrogen in many types of ecosystems.

The nitrogen cycle is of particular interest to ecologists because nitrogen availability can affect the rate of key ecosystem processes, including primary production and decomposition. Human activities such as fossil fuel combustion, use of artificial nitrogen fertilizers, and release of nitrogen in wastewater have dramatically altered the global nitrogen cycle. Human modification of the global nitrogen cycle can negatively affect the natural environment system and also human health.

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.

One goal of microeconomics is to analyze the market mechanisms that establish relative prices among goods and services and allocate limited resources among alternative uses. Microeconomics shows conditions under which free markets lead to desirable allocations. It also analyzes market failure, where markets fail to produce efficient results.

In microeconomic theory, the opportunity cost of a choice is the value of the best alternative forgone where, given limited resources, a choice needs to be made between several mutually exclusive alternatives. Assuming the best choice is made, it is the "cost" incurred by not enjoying the benefit that would have been had if the second best available choice had been taken instead. The New Oxford American Dictionary defines it as "the loss of potential gain from other alternatives when one alternative is chosen". As a representation of the relationship between scarcity and choice, the objective of opportunity cost is to ensure efficient use of scarce resources. It incorporates all associated costs of a decision, both explicit and implicit. Thus, opportunity costs are not restricted to monetary or financial costs: the real cost of output forgone, lost time, pleasure, or any other benefit that provides utility should also be considered an opportunity cost.

Hoarding in economics refers to the concept of purchasing and storing a large amount of a particular product, creating scarcity of that product, and ultimately driving the price of that product up. Commonly hoarded products include assets such as money, gold and public securities, as well as vital goods such as fuel and medicine. Consumers are primarily hoarding resources so that they can maintain their current consumption rate in the event of a shortage (real or perceived). Hoarding resources can prevent or slow products or commodities from traveling through the economy. Subsequently, this may cause the product or commodity to become scarce, causing the value of the resource to rise.

A common intention of economic hoarding is to generate a profit by selling the product once the price has increased. Hence, economic speculators tend to hoard products that are inelastic in price so that when the price of the product does increase, the demand for that product is maintained. Unlike investing, hoarded goods are excluded from an economy's flow of money and purchasing goods for hoarding generally occurs in markets operating under a non-competitive structure. The practice of hoarding can have varied effects in the economy and is legal in most cases, however price controls and other regulatory laws are often enforced to prevent negative market implications. Under Islamic jurisprudence, intentional acts of economic hoarding are regarded as highly sinful and unlawful.

Gossen's laws are three laws of economics that were articulated by Hermann Heinrich Gossen (1810–1858):

• Gossen's First Law is the law of diminishing marginal utility: that marginal utilities are diminishing across the ranges relevant to decision-making.
• Gossen's Second Law, which presumes that utility is at least weakly quantified, is that in equilibrium an agent will allocate expenditures so that the ratio of marginal utility to price (marginal cost of acquisition) is equal across all goods and services.

• Gossen's Third Law is that scarcity is a precondition for economic value.

Movement disorders are clinical syndromes with either an excess of movement or a paucity of voluntary and involuntary movements, unrelated to weakness or spasticity. Movement disorders present with extrapyramidal symptoms and are caused by basal ganglia disease. Movement disorders are conventionally divided into two major categories- hyperkinetic and hypokinetic.

Hyperkinetic movement disorders refer to dyskinesia, or excessive, often repetitive, involuntary movements that intrude upon the normal flow of motor activity.

Agriculture in the Soviet Union was mostly collectivized, with some limited cultivation of private plots. It is often viewed as one of the more inefficient sectors of the economy of the Soviet Union. A number of food taxes (mainly prodrazverstka and prodnalog) were introduced in the early Soviet period despite the Decree on Land that immediately followed the October Revolution. The forced collectivization and class war against (vaguely defined) "kulaks" under Stalinism greatly disrupted farm output in the 1920s and 1930s, contributing to the Soviet famine of 1932–33 (most especially the Holodomor in Ukraine). A system of state and collective farms, known as sovkhozes and kolkhozes, respectively, placed the rural population in a system intended to be unprecedentedly productive and fair but which turned out to be chronically inefficient and lacking in fairness. Under the administrations of Nikita Khrushchev, Leonid Brezhnev, and Mikhail Gorbachev, many reforms (such as Khrushchev's Virgin Lands Campaign) were enacted as attempts to defray the inefficiencies of the Stalinist agricultural system. However, Marxist–Leninist ideology did not allow for any substantial amount of market mechanism to coexist alongside central planning, so the private plot fraction of Soviet agriculture, which was its most productive, remained confined to a limited role. Throughout its later decades the Soviet Union never stopped using substantial portions of the precious metals mined each year in Siberia to pay for grain imports, which has been taken by various authors as an economic indicator showing that the country's agriculture was never as successful as it ought to have been. The real numbers, however, were treated as state secrets at the time, so accurate analysis of the sector's performance was limited outside the USSR and nearly impossible to assemble within its borders. However, Soviet citizens as consumers were familiar with the fact that foods, especially meats, were often noticeably scarce, to the point that not lack of money so much as lack of things to buy with it was the limiting factor in their standard of living.

Despite immense land resources, extensive farm machinery and agrochemical industries, and a large rural workforce, Soviet agriculture was relatively unproductive. Output was hampered in many areas by the climate and poor worker productivity. However, Soviet farm performance was not uniformly bad. Organized on a large scale and relatively highly mechanized, its state and collective agriculture made the Soviet Union one of the world's leading producers of cereals, although bad harvests (as in 1972 and 1975) necessitated imports and slowed the economy. The 1976–1980 five-year plan shifted resources to agriculture, and 1978 saw a record harvest. Conditions were best in the temperate chernozem (black earth) belt stretching from Ukraine through southern Russia into the east, spanning the extreme southern portions of Siberia. In addition to cereals, cotton, sugar beets, potatoes, and flax were also major crops. Such performance showed that underlying potential was not lacking, which was not surprising as the agriculture in the Russian Empire was traditionally amongst the highest producing in the world, although rural social conditions since the October Revolution were hardly improved. Grains were mostly produced by the sovkhozes and kolkhozes, but vegetables and herbs often came from private plots.

In economics, the market mechanism is a mechanism by which the use of money exchanged by buyers and sellers with an open and understood system of value and time trade-offs in a market tends to optimize distribution of goods and services in at least some ways. The mechanism can exist in free markets or in captive or controlling markets seek to use supply and demand, or some other form of charging for scarcity, to choose among production possibilities. In a free market economy, all the resources are allocated by the private sector (individuals, households, and groups of individuals); in a planned economy, all the resources are owned by the public sector (local and central government); and, in a mixed economy, some resources are owned by both sectors, private and public. In reality the first two are mostly theoretical and the third is common. Resources are allocated according to the forces of supply and demand.

Government interference in the market mechanism can lead to economic inefficiency when it is applied to some private goods. Prices convey a lot of information. They not only tell producers what to produce but also inform the producers to produce what people want. The more inaccurate the information gets, the lesser will be the economic coordination which will in turn lower satisfaction of wants. Thus interference in the information conveyed by prices is destructive to economic development if misapplied or overused. However, the market mechanism often cannot optimize for public goods, owing to problems such as the tragedy of the commons. For example, modern highways have been good for economic development, but it has taken government planning and allocation to bring them into existence.

Post-scarcity is a theoretical economic situation in which most goods can be produced in great abundance with minimal human labor, so that they become available to all very cheaply or even freely.

Post-scarcity does not mean that scarcity has been eliminated for all goods and services. Instead it means that all people can easily have their basic survival needs met along with some significant proportion of their desires for goods and services. Writers on the topic often emphasize that some commodities will remain scarce in a post-scarcity society.

In microeconomics, a production–possibility frontier (PPF), production-possibility curve (PPC), or production-possibility boundary (PPB) is a graphical representation showing all the possible quantities of outputs that can be produced using all factors of production, where the given resources are fully and efficiently utilized per unit time. A PPF illustrates several economic concepts, such as allocative efficiency, economies of scale, opportunity cost (or marginal rate of transformation), productive efficiency, and scarcity of resources (the fundamental economic problem that all societies face).

This tradeoff is usually considered for an economy, but also applies to each individual, household, and economic organization. One good can only be produced by diverting resources from other goods, and so by producing less of them.

In economics, a price system is a system through which the valuations of any forms of property (tangible or intangible) are determined. All societies use price systems in the allocation and exchange of resources as a consequence of scarcity. Even in a barter system with no money, price systems are still utilized in the determination of exchange ratios (relative valuations) between the properties being exchanged.

A price system may be either a regulated price system (such as a fixed price system) where prices are administered by an authority, or it may be a free price system (such as a market system) where prices are left to float "freely" as determined by supply and demand without the intervention of an authority. A mixed price system involves a combination of both regulated and free price systems.