Saturday, May 16, 2015

What is Public Expenditure ? Meaning, Definition

What is Public Expenditure ? Meaning, Definition

Public expenditure refers to Government expenditure i.e. Government spending. It is incurred by Central, State and Local governments of a country.

Public expenditure can be defined as, "The expenditure incurred by public authorities like central, state and local governments to satisfy the collective social wants of the people is known as public expenditure."
Throughout the 19th Century, most governments followed laissez faire economic policies & their functions were only restricted to defending aggression & maintaining law & order. The size of pubic expenditure was very small.
But now the expenditure of governments all over has significantly increased. In the early 20th Century, John Maynard Keynes advocated the role of public expenditure in determination of level of income and its distribution.
In developing countries, public expenditure policy not only accelerates economic growth & promotes employment opportunities but also plays a useful role in reducing poverty and inequalities in income distribution.

Classification of Public Expenditure

Classification of Public expenditure refers to the systematic arrangement of different items on which the government incurs expenditure.
Different economists have looked at public expenditure from different point of view. The following classification is a based on these different views.

1. Functional Classification

Some economists classify public expenditure on the basis of functions for which they are incurred. The government performs various functions like defence, social welfare, agriculture, infrastructure and industrial development. The expenditure incurred on such functions fall under this classification. These functions are further divided into subsidiary functions. This kind of classification provides a clear idea about how the public funds are spent.

2. Revenue and Capital Expenditure

Revenue expenditure are current or consumption expenditures incurred on civil administration, defence forces, public health and education, maintenance of government machinery. This type of expenditure is of recurring type which is incurred year after year.
On the other hand, capital expenditures are incurred on building durable assets, like highways, multipurpose dams, irrigation projects, buying machinery and equipment. They are non recurring type of expenditures in the form of capital investments. Such expenditures are expected to improve the productive capacity of the economy.

3. Transfer and Non-Transfer Expenditure

A.C. Pigou, the British economist has classified public expenditure as :-
1.     Transfer expenditure
2.     Non-transfer expenditure
Transfer Expenditure :-
Transfer expenditure relates to the expenditure against which there is no corresponding return.
Such expenditure includes public expenditure on :-
1.     National Old Age Pension Schemes,
2.     Interest payments,
3.     Subsidies,
4.     Unemployment allowances,
5.     Welfare benefits to weaker sections, etc.
By incurring such expenditure, the government does not get anything in return, but it adds to the welfare of the people, especially belong to the weaker sections of the society. Such expenditure basically results in redistribution of money incomes within the society.
Non-Transfer Expenditure :-
The non-transfer expenditure relates to expenditure which results in creation of income or output.
The non-transfer expenditure includes development as well as non-development expenditure that results in creation of output directly or indirectly.
1.     Economic infrastructure such as power, transport, irrigation, etc.
2.     Social infrastructure such as education, health and family welfare.
3.     Internal law and order and defence.
4.     Public administration, etc.
By incurring such expenditure, the government creates a healthy conditions or environment for economic activities. Due to economic growth, the government may be able to generate income in form of duties and taxes.

4.1 Productive and Unproductive Expenditure

This classification was made by Classical economists on the basis of creation of productive capacity.
Productive Expenditure :-
Expenditure on infrastructure development, public enterprises or development of agriculture increase productive capacity in the economy and bring income to the government. Thus they are classified as productive expenditure.
Unproductive Expenditure :-
Expenditures in the nature of consumption such as defence, interest payments, expenditure on law and order, public administration, do not create any productive asset which can bring income or returns to the government. Such expenses are classified as unproductive expenditures.

4.2 Development and Non-Development Expenditure

Modern economists have modified this classification into distinction between development and non-development expenditures.
Development Expenditure :-
All expenditures that promote economic growth and development are termed as development expenditure. These are the same as productive expenditure.
Non-Development Expenditure :-
Unproductive expenditures are termed as non development expenditures.

5. Grants and Purchase Price

This classification has been suggested by economist Hugh Dalton.
Grants :-
Grants are those payments made by a public authority for which their may not be any quid-pro-quo, i.e., there will be no receipt of goods or services. For example, old age pension, unemployment benefits, subsidies, social insurance, etc. Grants are transfer expenditures.
Purchase prices :-
Purchase prices are expenditures for which the government receives goods and services in return. For example, salaries and wages to government employees and purchase of consumption and capital goods.

6. Classification According to Benefits

Public expenditure can be classified on the basis of benefits they confer on different groups of people.
1.     Common benefits to all : Expenditures that confer common benefits on all the people. For example, expenditure on education, public health, transport, defence, law and order, general administration.
2.     Special benefits to all : Expenditures that confer special benefits on all. For example, administration of justice, social security measures, community welfare.
3.     Special benefits to some : Expenditures that confer direct special benefits on certain people and also add to general welfare. For example, old age pension, subsidies to weaker section, unemployment benefits.

7. Hugh Dalton's Classification of Public Expenditure

Hugh Dalton has classified public expenditure as follows :-
1.     Expenditures on political executives : i.e. maintenance of ceremonial heads of state, like the president.
2.     Administrative expenditure : to maintain the general administration of the country, like government departments and offices.
3.     Security expenditure : to maintain armed forces and the police forces.
4.     Expenditure on administration of justice : include maintenance of courts, judges, public prosecutors.
5.     Developmental expenditures : to promote growth and development of the economy, like expenditure on infrastructure, irrigation, etc.
6.     Social expenditures : on public health, community welfare, social security, etc.
7.     Pubic debt charges : include payment of interest and repayment of principle amount.
courses of action in terms of the merits of protection




Public expenditure

Public expenditure effects
e effect of public expenditure on production can be examined with reference to its effects on ability & willingness to work, save & invest and on diversion of resources.
1.     Ability to work, save and invest : Socially desirable public expenditure increases community's productive capacity. Expenditure on education, health, communication, increases people's productivity at work and therefore their incomes. With rise in income savings also increase and this in turn has a beneficial effect on investment and capital formation.
2.     Willingness to work, save and invest : Public expenditure, sometimes, brings adverse effects on people's willingness to work and save. Government expenditure on social security facilities may bring such unfavourable effects. For e.g. Government spends a considerable portion of its income towards provision of social security benefits such as unemployment allowances old age pension, insurance benefits, sickness benefit, medical benefit, etc. Such benefits reduce the desire to work. In other words they act as disincentive to work.
3.     Effect on allocation of resources among different industries & trade : Many a times the government expenditure proves to be an effective instrument to encourage investment on a particular industry. For e.g. If government decides to promote exports, it provides benefits like subsidies, tax benefits to attract investment towards such industry. Similarly government can also promote a particular region by providing various incentives for those who make investment in that region.

2. Effects on Distribution

The primary aim of the government is to maximise social benefit through public expenditure. The objective of maximum social welfare can be achieved only when the inequality of income is removed or minimised. Government expenditure is very useful to fulfill this goal. Government collects excess income of the rich through income tax and sales tax on luxuries. The funds thus mobilised are directed towards welfare programmes to promote the standard of poor and weaker section. Thus public expenditure helps to achieve the objective of equal distribution of income.

Expenditure on social security & subsidies to poor are aimed at increasing their real income & purchasing power. Public expenditure on education, communication, health has a positive impact on productivity of the weaker section of society, thereby increasing their income earning capacity.


3. Effects on Consumption

Public expenditure enables redistribution of income in favour of poor. It improves the capacity of the poor to consume. Thus public expenditure promotes consumption and thereby other economic activities. The government expenditure on welfare programmes like free education, health care and housing certainly improves the standard of the poor people. It also promotes their capacity to consume and save.

4. Effects on Economic Stability

Economic instability takes the form of depression, recession and inflation. Public expenditure is used as a mechanism to control instability. The modern economist Keynes advocated public expenditure as a better device to raise effective demand & to get out of depression. Public expenditure is also useful in controlling inflation & deflation. Expansion of Public expenditure during deflation & reduction of public expenditure during inflation control money supply & bring price stability.

5. Effects on Economic Growth

The goals of planning are effectively realised only through government expenditure. The government allocates funds for the growth of various sectors like agriculture, industry, transport, communications, education, energy, health, exports, imports, with a view to achieve impressive growth.

Government expenditure has been very helpful in maintaining balanced economic growth. Government takes keen interest to allocate more resources for development of backward regions. Such efforts reduces regional inequality and promotes balanced economic growth.

Conclusion

Modern economies have all experienced tremendous growth in public expenditure. So it is absolutely necessary for governments to formulate rational public expenditure policies in order to achieve the desired effects on income, distribution, employment and growth.


Friday, April 24, 2015

Electric Current (SS) gceo physics

The electric charges in motion is called electric current and it forms the basis of current electricity. Static electricity, or electrostatics, on the other hand involves charges at rest.
Electric current (I) is the rate of flow of charges.(Q)
  • SI unit: Ampere (A)
  • Can be measured by an ammeter (must be connected in SERIES to the circuit)
I=Qt
A current of one ampere is a flow of charge at the rate of one coulomb per second.
For electric current in a metal conductor (a solid), the charge carriers are electrons. For historical reasons, the direction of the conventional current is always treated as the opposite direction in which electron effectively moves.
  • Current in gases and liquid generally consists of a flow of positive ions in one direction together with a flow of negative ions in the opposite direction.

Electric current generates a magnetic field. The strength of the magnetic field depends on the magnitude of the electric current.
Current electricity consists of any movement of electric charge carriers, such as subatomic charged particles (e.g. electrons having negative charge, protons having positive charge), ions (atoms that have lost or gained one or more electrons), or holes (electron deficiencies that may be thought of as positive particles)
  • If the direction of the current (charge flow) is fixed, it is known as a direct current. If the motion of the electric charges is periodically reversed; it is called an alternating current.
  • Analogy to river:
In order to help you understand the concept of current better, you can think of a river. Current in an electric circuit is similar to water flowing through the river.

Thursday, April 23, 2015

Propagation Of Sound Waves Gceo level

Tuning_fork_on_resonator
Tuning Fork
Vibration in the tuning fork produces disturbances in the surrounding air. When the prongs’ movement is outwards, the prongs push the surrounding air molecules away, creating a local compression.
This disturbance of air layers is then passed from molecule to molecule by collisions, causing the local compression to move outwardly.
tuning fork
When the prongs’ movement is inwards, a partial void, or rarefaction is created. Pressure differences causes the air molecules to rush back into the region again. This periodic to-and-fro movement of the prongs will create alternating regions of compressions and rarefactions. The sound waves span outwardly parallel to the direction of the wave propagation (longitudinal nature).
  • In air, compressions are regions where the pressure is higher than surrounding air and rarefactions are regions where pressure is lower than the surrounding air.

Notes:

  • The energy of the sound waves is propagated and carried by colliding particles of a material medium. Hence, a (material) medium is required in order to transmit these (energy) waves.
  • The speed of energy propagation is dependent on the proximity of these particles in a medium. Hence, given that the proximity of particles in the air, liquids or solids is different, the speed of sound differs in air, liquids and solids. Sound travels faster in denser media. It travels faster in liquids than in gases and fastest in solids.

Gceo level Physics Sound

Sound is a mechanical wave phenomenon and is normally associated with our sense of hearing. Sound is a property of vibrating objects.
  • Sound is produced by vibrating sources in a material medium. Medium can be any gas, liquid or solid.
  • The vibrating sources set the particles of a medium in vibration in such a way that sound travels outwards in the form of longitudinal waves.
  • Some of the energy of the vibrations are transmitted over a distance.
Examples of vibrating sources:
  • Musical instruments, like drums, guitar
  • Hitting a piece of iron with a hammer
  • Loudspeakers (Consists of a cone which vibrates under the effects of electricity and magnetism)
  • Explosion resulting from explosives.


Physics speed notes gceo level

Speed is the distance moved per unit time.
  • SI unit is metre per second (ms1)
  • Scalar quantity
  • Equation: Speed=dt, where d is distance travelled and t is time taken
  • Average speed can be calculated using totaldistancetravelledtotaltimetaken
  • Instantaneous speed is the speed at any instant
    1. Measured by a speedometer

A speedometer measures the instantaneous speed
A speedometer measures the instantaneous speed
Velocity (v) of an object is the rate of change of displacement with respect to time.
  • SI unit is metre per second (ms1)
  • Vector quantity
  • The magnitude of velocity is speed
  • v=st, where s is displacement and t is time taken

As velocity is a vector quantity, you have to specify its magnitude and direction to completely describe it.

Sunday, April 19, 2015

THE WORLD POPULATION AND THE TOP TEN COUNTRIES WITH THE HIGHEST POPULATION

THE WORLD POPULATION AND THE TOP TEN
COUNTRIES WITH THE HIGHEST POPULATION

The ten countries with the largest population in the world are
China, India, United States, Indonesia, Brazil, Pakistan,
Bangladesh, Nigeria, Russia and Japan.

TOP TEN COUNTRIES WITH THE HIGHEST POPULATION
#Country2000
Population
2010
Population
2014
Population
2050
Expected Pop.
1
China
1,268,853,362
1,330,141,295
1,355,692,576
1,303,723,332
2
India
1,004,124,224
1,173,108,018
1,236,344,631
1,656,553,632
3
United States
282,338,631
310,232,863
318,892,103
439,010,253
4
Indonesia
213,829,469
242,968,342
253,609,643
313,020,847
5
Brazil
176,319,621
201,103,330
202,656,788
260,692,493
6
Pakistan
146,404,914
184,404,791
196,174,380
276,428,758
7
Nigeria
123,178,818
152,217,341
177,155,754
264,262,405
8
Bangladesh
130,406,594
156,118,464
166,280,712
233,587,279
9
Russia
146,709,971
139,390,205
142,470,272
109,187,353
10
Japan
126,729,223
126,804,433
127,103,388
93,673,826
TOP TEN Countries
3,618,894,827
4,016,489,082
4,176,380,247
4,950,140,178
Rest of the World
2,466,012,769
2,829,120,878
3,005,478,372
4,306,202,522
TOTAL World Population
6,084,907,596
6,845,609,960
7,181,858,619
9,256,342,700
NOTES: (1) The Top 10 Most Populated Countries of the World Table was updated for August 12, 2014. (2) Detailed data for individual countries may be found clicking on each country name. (3) Demographic (population) estimates for years 2000, 2010, 2014 and 2050 are based mainly on mid-year data from the US Census Bureauwebsite, and verified with local census agencies, when available. (4) The China population data is for the mainland only. (5) Data from the Internet World Stats website may be cited, giving the due credit and establishing an active link back to Internet World Stats. (6) For definitions, navigation help and methodology, see the Site Surfing Guide. Copyright © 2001 - 2014, Miniwatts Marketing Group. All rights reserved worldwide.