Should economics be handed over to philosophers?

From the Financial Times:

A philosopher should lead the dismal scientists

Published: August 16 2010 02:40 | Last updated: August 16 2010 02:40

From Prof Chin-Tai Kim and Prof Yeomin Yoon.
Sir, Rod Dowler’s assertions (Letters, August 12) that “economics could be declared as a failing discipline and could be taken over by a successful discipline such as physics”, and that “an eminent physicist could be appointed to take charge of economics”, are grossly off the mark, revealing a common and sad misunderstanding of the nature of economics.
Mr Dowler should understand that economics (and its current state) may be “dismal” but it is not a science that only describes, measures, explains and predicts human interests, values and policies – it also evaluates, promotes, endorses or rejects them. The predicament of economics and all other social sciences consists in their failure to acknowledge honestly their value orientation in their pathetic and inauthentic pretension to emulate the natural sciences they presume to be value free.
The Aristotelian concept of politics as a master science that comprehends ethics and economy and the Enlightenment concept of political economy indicate a more correct and complete understanding of the correct structure for investigating economic phenomena. With Aristotle, we would argue that economics should be a branch of a comprehensive inquiry (ie ethics) that posits the summum bonum for human society and describes the way it can be realised in specific structures of human social existence, including economic regions.
It is unfortunate that today’s economists have conveniently forgotten that economics is a dimension of ethics as envisioned by Adam Smith (see his Theory of Moral Sentiments) as well as John Maynard Keynes who said: “It needs no proof that neither economic activities nor any other class of human activities can rightly be made independent of moral laws.” We feel that the economics profession needs a root and branch examination of how economics is studied and practised with a serious consideration of how ethics can be organically incorporated into economic discourse. To do so, an eminent philosopher, rather than a physicist, should be appointed to take charge of economics and “lead the dismal scientists”.
Chin-Tai Kim,
Professor of ,
Case Western Reserve University,
Cleveland, OH, US
Yeomin Yoon,
Professor of Finance and International Business,
Seton Hall University,
South Orange, NJ, US

Example 2: same chapter

Definitions:
- Economics: The study of how to allocate scarce resources in the most efficient way, divided in microeconomics( the study of how households and firms make decisions in markets) and macroeconomics. (the study of issues that affect economies as a whole)
- Household: Group of people whose spending decisions are connected.
- Model: A simplified view of reality that is used by economists as a means of explaining economic relationships.
- Factor of production: The resource inputs that are available in an economy for the production of goods and services. Land, Capital, Labor and entrepreneurship.
- Factor endowment: The stock of factors of production.
- Production: The output of goods and services.
- Goods : tangible products such as cars, food and washing machines.
- Services: Intangible products, such as banking, beauty therapy and insurance.
- Land: natural resources in an economy
- Capital: man-made aids to production.
- Entrepreneurship: Management.
- Labour: The quantity and quality of human resources.
- Division of Labour: The specialisation of labour where the production process is broken down into separate tasks. One part producing half-fabricate, other part making final product (perhaps in other countries, improving transport.)
- Opportunity cost : The cost of the next best alternative which is foregone when a choice is made. So if I buy a DVD of 5 pounds I will not be able to buy two sandwiches with the total of price of 5 pounds. The opportunity cost for the DVD is two sandwiches.
- Want: anything you would like, irrespective of whether you have the recourses to buy it.
- Scarcity: A situation where there are insufficient resources to meet all wants. (There is always scarcity)
- Specialisation: The concentration by a worker or workers, firm region or whole economy on a narrow range of goods and services. Specialisation has a wide range of benefits:
1) An increase in the output of goods and services when compared to circumstances where each country provides itself with everything it needs. Globally, this has had an important bearing on raising living standards, since there is more output from a particular volume of resources.
2) A widening range of goods that are available in an economy. Like the Caribbean selling banana’s because of the climate. (Oil-exporting countries!)
3) Exchange between developed and developing countries. This is often influenced by the factors of production. For example: China has been able to grow because of the high export. The high export was the result of the cheap labour in China.

Specialisation isn’t without risks. For example:
1) Countries that have specialized in E.G. oil might have a problem when oil runs out. (Dubai)
2) De-industrialisation. Because of specialization E.G. the British textile industry has moved to low-wage companies like China. This resulted in a huge amount of job-losses.
3) Bad weather, if the Caribbean focus on banana’s and the crops get wiped out because of bad weather they will be in some serious problems.
4) The taste of consumers might change, asking for other goods which will make the demand for you specialized good drop.

- Exchange: The process by which goods and services are traded. The trades can be internal (domestic) and external (international).
- Productivity: Output, or production of a good or service, per worker.
- Developed economy: an economy with a high level of income per head
- Developing economy: an economy with a relatively low level of income per head.
- Productive potential: the maximum output that an economy is capable of producing.
- Economic system: the way in which production is organised in a country or group of countries.

The basic economic problem: the fact that resources are scarce in relation to wants that are unlimited leading to choices having to be made.



Production possibility curve.

The production possibility curve shows how resources are allocated. It shows the maximum quantities of different combinations of output of two products, given current resources and the state of technology.
To explain this model we need to imagine the economy just produces two goods, say: cars and TV’s . It is also assumed that these two industries use all of the economy’s current resources. Sometimes the production possibility curve is called the production possibility frontier, since it draws a type of boundary between what can and cannot be produced.

CARS TV’s
1000 0
800 400
600 800
400 1200
200 1600
0 2000

Also involves opportunity cost: The opportunity cost of making 200 cars is 400 TV’s.

In the example of the cars and TV’s, there are two extremes: producing 1000 cars and producing 2000 TV’s.



Point A and B are on the PPC and are important since they are indicative of an efficient allocation of resources. Point C, however, shows an inefficient allocation of resources because there are less cars and tv’s produced than it could from the resources available. Point D isn’t a possible outcome because this point indicates there are more resources being used than there are resources available.
The graph also indicates there is a trade-off involved. A trade off is the calculation involved in deciding on whether to give up one good for another. If we choose to make more tv’s, we’ll produce less cars.

PPC will move outwards because of:
- Increase in technology; this leads to an over-time increase of productive capacity. (because of higher efficiency)
- More resources, we will be able to produce more because the amount of resources increases. ( With fixed efficiency)
- Economic growth; causes increase of productive capacity due to an increase of capital.

The PPC will move inwards when the productive capacity decreases.

The problems of developing countries in relation to the PPC.
If we look at a PPC for capital goods and consumer goods the problem for the developing countries is that they have a relatively high population in relation to the GDP. Therefore, there is a relatively high demand for consumer goods and there are relatively a lot of consumer goods produced. However, due to the steepness of the line near the extreme of consumer goods a small decline in the production of consumer goods will make the production of capital goods increase significantly.



However, to ensure economic growth in the future capital goods are very important because this will make the productive potential increase.
The choice is always between meeting the current needs and wants of the people(by producing consumer goods) and insuring economic growth. (by producing capital goods)


Economic market systems and the role of the market.


Scarcity involves the choice of governments and organizations to choose:
- What goods and services are to be produced;
- How these goods and services are produced and
- Who should receive these goods and services (allocation)

There are three main types of economic systems:
-Market economy: An economic system whereby resources are allocated through the market forces of demand and supply. Decisions on how resources are allocated are made by millions of people and firms. Price and free operation of the price system are central to the way in which resources are allocated.



-Command economy or centrally planned economy: An economic system in which resources are state owned and allocated by the state.
In the command economy the government has a central role in all decision made like: what to produce, how to produce and for whom the produced goods are. Also, prices of essential items and wages are controlled.
The market does not have a substantive role in the allocation of resources.
Also, in the command economy the government will try to move the PPC more to the capital goods as it would have been in the free market system to ensure future economic growth.
-Mixed economy: an economic system in which resources are allocated through a mixture of the market and direct public sector involvement.
Mostly in mixed-economy the most important companies involving E.G. oil; gas; electricity would have been government owned. However, the last 20 years there has been the trend of privatisation. Those companies are becoming private companies.
Worldwide there has been a move from government-owned companies to privatisation, which mostly caused an extra flow of money to the countries involved due to additional foreign investments. (China, command economy to mixed)

Example: Chapter 1 summary

What is economics?

Economics is the study of how to allocate scarce resources in the most effective way. Economics is divided into two traditional fields: Microeconomics and Macroeconomics.

Microeconomics is the study of how households (group of people whose spending decisions are connected) and firms make decisions in markets.

Macroeconomics is the study of issues that affect economies as a whole.

A model is a simplified view of reality that is used by economists as a means of explaining economic relationships.

Wants is anything you would like, irrespective of whether you have the resources to purchase it.

Choice is the selection of appropriate alternatives.

Scarcity is a situation where there are insufficient resources to meet all wants.

Opportunity Cost is the cost of the next best alternative forgone.

The basic economic problem

Economic problem is how to allocate scarce resources among alternative uses.

The resources available in an economy are known as factors of production. An economy produces a lot of goods and services. Goods are products that can be seen or touched, such as cars, food and washing machines. Services are products that cannot be seen or touched, such as banking, beauty therapy or insurance.

There are four main types of factors of production:

Land: natural resources in an economy.

Labour: the quantity and quality of human resources.

Capital: man-made aids to production.

Entrepreneurship: the willingness of an entrepreneur (someone who bears the risks of the business and who organises production) to take risks and organise production.

The worlds poorest countries tend to have few and/or poor quality factor endowment, which is the stock of factors of production.

Specialisation and exchange

A specialisation is a situation where individuals workers, firms, regions of economies concentrate on a particular task or upon producing some goods and services and not others. Trade, which involves the exchange of goods and services normally using money, enables specialisation to take place.

These are the benefits of specialisation:

- An increase in output of goods and services when compared to circumstances where each country provides itself with everything it needs.

- A widening of goods that are available in an economy. For example, the Caribbean specialises in growing bananas; these are traded with the UK and, in return, the money from their sale can be used to buy, say, pharmaceuticals from the UK.

- Exchange between developed (economy with high level of income per head) and developing (economy with relatively low level of income per head) countries.

Specialisation is not without risk. For example:

- If a country has finite resources such as oil, when these run out, the economy is likely to suffer unless the revenues earned from expots have have been wisely invested for the future.

- De-industrialisation – the loss of manufacturing capacity and jobs.

- Bad weather, as experienced in parts of the Caribbean, has wiped out a whole year’s crops.

- The taste or needs of consumers may change.

Subsidy: a payment by a governing body to encourage the production or consumption of a product.

Division of labour

Productivity: output, or production of a good or service, per worker.

Division of labour is the specialisation of labour where the production process is broken down into separate tasks.

An example of the division of labour is the manufacturing of motor vehicles. Here you have separate workers and specialists on separate parts like the engine, body panels and electrical components.

Production Possibility Curve

To show how resources are allocated we can use the production possibility curve (PPC) model. The production possibility curve shows the maximum quantities of different combinations of output of two products, given current resources and the state technology.

The figure below is a production possibility curve.






At point A 750 cars and 1000 televisions are produced. Both A and B indicate an efficient allocation of resources. Point C however, is an inefficient allocation of resources, since the economy is producing less than it could from the resources available. Point D is not a possible outcome, because the economy doesn’t have enough resources to produce this amount of cars and televisions.

The PPC is also used to show opportunity cost. For example, if the economy is operating at point A, the opportunity cost of producing 500 more televisions is 250 cars.

The PPC further indicates that there is a trade-off involved. Trade-off is the calculation involved in deciding on whether to give up one good for another.

If, for example there is an advance in production for television it will be more sets produced for a given number of cars. This is shown in the PPC below.





The PPC changes curve in this way because there has only been a change in the production of televisions, but no change in conditions affecting the car production.

The whole production possibility curve can shift entirely, either to the left or to the right, when the production capacity changes.

There are two main reason why such shifts may occurs:

-More resources or economic growth. Economic growth occurs where the productive potential of an economy changes. Productive potential is the maximum output that an economy is capable of producing.

-Advances in technology continue over time, affecting the position of the PPC of an economy.

PPC can also be used to make difficult choices such as how to allocate scarce resources. In the PPC below (A/D) we see that the production of consumer goods is approaching its maximum leaving only a small amount of resource for capital goods. We see that a small reduction in production of consumer goods, lead to a quite big increase in production of capital (B/D), which means that the economic potential will rise.




Economic systems and the role of the market

The choices that are made and how they are made is determined by the economic system of a particular country. There are three different types of economic system.

These are the market economy, the command or centrally planed economy and the mixed economy.

In the market economy, resources are allocated by the forces of demand and supply through the price mechanism.

Demand is the quantity of a product that a consumer are able and willing to purchase at various prices over a period of time.

Supply is the quantity of a product that producers are willing and able to provide at different market prices over a period of time.

In a market economy, people and firms take decisions about how resources should be allocated. Price and the free operation of the price system (method of allocating resources by the free movement of prices) plays an important part in how resources are allocated.
In the command or centrally planed economy the government has a central role in all decisions that are made. The key features of a command economy are that the government is responsible for the allocation resources.

In a mixed economy resources are allocated through a mixture of the market and the direct public sector involvement. Decisions involve an interaction between firms, labour and the government, mainly through the market mechanism. A mixed economy is the typical economic system.

Deflation

reducing money supply in the market resulting in an increase in the purchasing power of money. Colloquially its a decline in the average level of prices, a situation where for the same amount of money you can buy more goods of goods and services. The opposite of inflation is deflation.

Effects of deflation:
1)reduction in profitability of production
2)increasing of the purchasing power of the working part of society
3)consumption and industrial orders are delayed(in anticipaton of lower prices)
In order to fight deflation Central Banks inject more cash into the economy, for instance , by directly buying assets such as bonds and shares or by increasing the amount of cash commercial banks have in their vaults-Those methods are known as QUANTITATIVE EASING

US Federal Reserve Chairman Ben Bernanke has opened the way to a new round of quantitative easing.

The message of today's speech is that chairman Bernanke thinks that US inflation is dangerously low, that unemployment is dangerously high, and that growth can and should be much faster than it is now.”

Central Banks and interest rates

almost every country with its own currency and government has a central bank.Central Banks main ''weapon'' are interest rates. by rising them they stop the danger of inflation getting out of hand and by cutting them if the economy slows down.

GDP

Gross Domestic Product is a measure of a country's overall economic output. It is the market value of all final goods and services made within the borders of a country in a year. It is often positively correlated with the standard of living,though its use as a stand-in for measuring the standard of living has come under increasing criticism and many countries are actively exploring alternative measures to GDP for that purpose

GDP can be determined in three ways, all of which should in principle give the same result. They are the product (or output) approach, the income approach, and the expenditure approach.
The Expediture Approach:

GDP = private consumption + gross investment + government spending + (exports − imports),GDP=C+INV+G+(EX-i)

Micro and Macro

Micro , deriving from Mikros, ancient greek for 'small' microeconomics is the term used for the study of how households and business make their decisions and interact with markets.
Macro, deriving from Makros, Ancient greek for 'large' is a study how economies as a whole function.

Money

there are 3 main purposes for money.1)its is used as a medium of exchange
2)Its a unit of account, helping us to judge the value of something
3)Its a store of value meaning that it will not lose its worth over time(quite arguably with paper money!!)
Types of money: Commodity money:have intrinsic value. like gold, rice,silver
Fiat Money:without intrinsic value. Government simply has decreed that coins and notes of negligible intrinsic value are legally worth a certain amount(dollar could have been exchange for gold till 1971 thus becoming pure fiat currency)

Marginal Revolution

The Margin revolution made a simple but a crucial point. We cannot assume that all things have inherent value, things have value only insofar as people want them.Let`s take a diamond for instance. Normaly Its worth much more than a glass of water, but for a man on the desert who has endured days of thirst. He would probably pay any amount of cash to drink.The amount of satiscaction one takes from every glass is called MARGINAL UTILITY.in this case Diminishing Utility.
The Idea of Marginal utility blossomed under economist, Alfred Marschall who propounded the idea that consumers make decisions based on marginal consideration. Previously attention had focused more on supply and demand, he emphasized that consumers`s desires should also be considered.

supply-side economics

most broadly, supply-side economics refers to the reform of the supply side of the economy-meaning the institutions and companies that produce the goods people consume. In this traditional sense, supply siders are those who would like these companies to be freer and more efficient, they support the privatization of utilities(such as water and energy companies), cuts in subsidies to struggling sectors( such as farming and mining) and the abolition of monopolies(such as telecommunications companies)
However, since the 1980'supply-side economics' has tended to refer more specifically to arguments in favor of cutting high tax rates, and idea most notably propounded by American economist Arthur Laffer in the late 70`s.
According to him the bigger the taxes are, the bigger are people`s incentives to avoid paying them or to work less. He sketched out a bell-shaped curve(The Laffer Curve) which showed that there was a point somewhere between zero and 100 per cent where a government could get maximum potential revenues.

Individualism

Economic idea according to which people`s individual decisions and how that influences the market should be examined by economists. Carl Menger for instance, maintained that economy is still a social science and aims to classify people`s actions into logical framework and set of patterns.Mengers`s succesor, Noble Prize-winning Austrian Friedrich Hayek, observed, everyone is different and as such-although they may be treated in precisely the same way-the way they react to that treatment may differ greatly.so the only way to ensure they are equal  would be to treat them differently.
Austrian economists emphasize the importance of freeing up the indywidual to take her or his choices. This austrian laissez-faire influenced some of the biggest reform in 20th-century economics, for it was, at least partially, the ideas of the Austrian School that inspired both Ronald Reagan and Margaret Tchtcher to push forward their free-market reforms. They recognized that the focus should not be on top-down economics, but indywiduals wants and desires

Communism

Karl Marx in his (in)famous magnus opus''Das Kapital'' stated that societies are in the midst of a process of evolution from less sophisticated and less fair, economic systems toward much brighter destiny . Having started off in feudal state, through mercantilism and modern capitalism, humanity would naturally improve, finally finding the best political system. Marx, argued that this system was communism.
The main principle of communism was that all property and means of production(factories,tools,raw materials,ect) should be owned by everyone. Private property should be erased. The rich with more capital become richer at the expense of the average worker. This is only the first stage since communism state should own and control all of the companies and institutions ensuring that companies do not use and oppress their workers. Then the state will ''Withdraw'' from its role and this will be the final stage of human society. Barriers between nations will dissolve.
According to Marx masses would overthrown their corrupted and oppressing governments to institute a new,fairer order.

Monetarism

Monetarism is a school of economics that studies the impact of monetary policy in the state of national income. Within this department of economics there are a number of theoretical and ideological differences.
Monetarism as a contemporary school of economics was built around 1956. His birth is considered the publication of Milton Friedman called. quantity theory of money.
Friedman argued that the demand for money is strictly dependent on several economic variables and may be relatively easily calculated. Thus, if the state will increase the emission of money over the calculated value, it will cause an excess of fast money in the balance sheets of individual men, who shall use them for the additional consumption. Additional consumption will cause a temporary increase in living standards. In the long run, this temporary increase in the standard, however, will not have coverage in the supply of goods, which is only dependent on the production capacity, which by the mere fact that the issue of money does not change. Causes a temporary increase in consumption but in the long term steady growth needs, which implies a continuing focus on increased money supply. In this situation, the State or to continue to increase the money supply causing inflation, or cause public discontent cut off his income. This view stood in sharp contrast to the current time Keynesianism, who proclaimed that "the amount of money in the economy is of secondary importance" and that the resulting increase in emissions does not automatically cause an increase in consumption. 

Keynesianism

This is one of the two leading twentieth-century schools of macroeconomic, which was initiated by John Maynard Keynes. It was first presented in the publication of The General Theory of Employment, Interest and Money in 1939. The new theory quickly gained popularity among the economists who supported the intervention of the state.Its main opponents was Monetarism and Austrian school, including the first Noble Prize Winner in economics Fredrich von Hayek and Ludwig von Mises. 
According to the Keynes , governments should intervene in the market to prevent deep recessions. During a crisis, the drop in demand for goods could cause a serious slump causing the economy to contract and pushing up unemployment. It was the responsibility of the government to kick-start the economy by borrowing cash and spending it, hiring public-sector staff and organizing mass public infrastructure projects-for example building roads,highways,hospitals,schools. The interest-rates cuts should also be done in order to boost the economy.This ''injections' made by the state can raise total economic output by far more than the amount of public money actualy ''injected''
Keynesianism became out of fashion in the 70s only to became popular nowadays in the time of the global crisis.

Capitalism

Generally speaking,capitalism is the system where capital(the companies, equipment and structures used for producing goods and service) is owned not by the state but by private indyviduals.But most of the books dont even bother to define it.Its a mulit-dimensional system unlike the communism.Capitalism as a MONGREL.
It has been criticized many times for exploiting the employees and is prone to the formation of monopolies.
The capitalism have never existed in its purest, fully free economy form-often called Laissez-Faire, from the french for ''let them do''.In fact ,most leading nations are actually slightly less free market than they were free centuries ago.In 1929 shortly before The Wall Street Crash , US goverment spending accounted for less than one-tenth of the country`s economic output. Forty years later it accounted for around one-third. Today, it accounts for around 36 per cent, with the proportion fast to rise.Although it is not the same system as at the beggining, Capitalism still is considered as one of the best economics idea.Or The least worst way to run an economy.
It is linked with democracy.In fact it is inherently democratic. There is no Capitalism without democracy and its belived that China`s adaptation of free market values will lead it toward Democracy.
After the collapse of Communism in Europe, new countries adopted Capitalism as its main economic idea. Even for its critics it should be obvious by looking at the countries which had been under Communist influence for the last 50 years, that Capitalism had left western economies in a far better shape than the previous members of the Eastern Block.Amen

Comparative Advantage

This economics idea says that everyone should focus on producing only one good he is best at,  in spite of the fact that he could be pretty good at producing both of them.Im means that is one country produces 50 000 bottles of wine a year and 10 000 jeans a year, it would be better for it to use all the labour and time only for producing wine. Its much more efficient and they can sell/exchange the production surplus in a free market

Division of Labour

Its an idea of dividing up the work and specializing in what each of us is good at.Its has been practised for millennia until it reached its culmination in 20th century in the shape of Henry Ford and his famous Model-T car
Division of Labour allows us to produce things faster and at the smaller cost.Each element is made separately by a specialist and then merged into an expected shape/object. Nowadays different elements can be made in different countries or even different continents and then be brought to the factory. Its is one of the most important and powerful pieces of economic logic.
There are also some cons of it. The first is that , it can be extremely difficult to find a job when you specialize in a craft that is no longer in use. Second, a factory can become entirely dependent on one person or a group of people.If someone doesn`t do its duty properly the whole factory stops producing.We can say that chain is as strong as its weakest link...Third, it can undermine the morale of an individual to be forced to specialize only in one specific job, i.e pressing the red button. Despite all of these threats, Division of Labour remains the fundament of modern economics and remains the key to the effectivness of production

Incentives

In economics and sociology, an incentive is any factor (financial or non-financial) that enables or motivates a particular course of action, or counts as a reason for preferring one choice to the alternatives. It is an expectation that encourages people to behave in a certain way.

Opportunity Cost=Time is Money

its the alternative use of your cash and time.it means for that every hour we spend at one job we could spend differently doing something else(i.e watching tv or sleeping). Basically opportunity cost applies to all aspects of our lives whenever we need to make a decision involving our time, money, labout etc.If a second choice turned out to be a better one that the one we have chosen-we call it forgone opportunity.It is a major issue in business since you need to know which decisions are more profitable.I.e the owner of the farm have 100.000€ to spend.He can either buy more advanced fertilizers in his hope for a better harvest next year. He could also put the money into a bank account where it could earn 5 per cent interest a year. Therefore the opportunity cost of the investment is 5000 €-the amount forgone by investing in the fertilizers.

The Malthusian Trap

Thomas Robert Malthus said is his 1798 ''Essay on the Principle of Population, that human population is raising geometrically(i.e by multiples-2,4,8,16...) while the food production grows arithmetically(i.e by addition-2,4,6,8...). According to him humanity was heading for an evitable crunch. Unless we will cut our birth rate, the human population will suffer one of the three checks imposed by nature to keep it at certain sustainable limits: famine, disease or war .
According to Malthus critics,  he was wrong. The population of the earth grew from 980 milion in 18th  century to 6,5 bilion in 21st century.It is projected to Baloon to more than 9 bilion by 2050. Yet the majority of people on the planet are better fed, more healthy and longer-lived than ever before. This is mainly because humans have tendency to improve technology all the time, giving us more advanced and efficient agriculture every year.At the same time rich societes(so called Western World) tend to have less children, with birth rate insufficient to prevent depopulation. On the other hand Neo-Malthusians say that we have only managed to delay the catastrophe for a couple of centuries. Even though Malthus concerns were focused on food problems, one could just as easily insert oil and energy sources as being the chief''means of man support'' We are at the eve of another crunch and if we are going to be saved by technological advance or population restraint remains to be seen

http://www.uswitch.com/news/money/uk-worst-place-to-live-in-europe-uswitch-quality-of-life-index-890419/

The law of supply and demand

Supply and demand is an economic model of prize determination in the market. It says that in the competitive market prize of the particular good will vary until it reaches prize EQUILIBRIUM, which is the point where quanity supplied by the producers equals the quantity demanded by the consumers.
It means that the product prize is an index showing us whether the supply or demand for this particular product is rising or falling.

Adam`s Smith invisible hand(of the market)

The invisible hand of the market is a metaphor used by Adam Smith in his book Inquiry into the Nature and Causes of the Wealth of Nations (1776).  Smith tried to describe the mechanism characteristic of capitalist economies, and in the sense that the actions of individuals, due to their selfish desire to satisfy their own needs, in fact also contribute to the realization of social needs. According to Smith the market mechanism is able to regulate the process of meeting social needs and therefore rejects the need for state intervention and protectionism, as conditions for the realization of public interest.