Increase in exports does not cause any increase in demands of goods and services.

Any society requires basic commodities like food, clothing and shelter. Air-Conditioner, furniture, and fan among the given options are examples of luxurious goods and cycle is necessity.

Goods are divided as free goods and economic goods. Free goods are those goods which are free of cost and economic goods are available for a particular price. Among the given options, sunshine, rainfall and air are examples of free goods and a bottle of water is an example of economic good.

Among the given options, the incorrect option is the statement which says that the ‘wants are limited’. In fact, wants are unlimited but resources to satisfy all human wants are not sufficient. Hence, we can say that the wants are unlimited but resources are limited.

Basic needs are those needs which are necessary for survival of a human being. Food clothing and shelter fall under this category. Among the given options, fan, education and cycle are essentials or comforts required. Gold jewelry falls under luxury goods. 

Chemist will keep the medicines and other things which are to be stored below the room temperature and thus the refrigerator in a chemist shop is a producer's good as it helps to satisfy human wants indirectly.

Human wants are unlimited. This means that they are never ending and can never be fully satisfied. Since wants keep on adding, all of them cannot be satisfied due to limited resources. As soon as one want gets satisfied, another one emerges. 

In economics, factor market refers to the the market where factors of production ,namely land,labour,capital entrepreneurship -are brought and sold.

Inferior goods refer to those goods which possess an inverse relation between income of a consumer and demand of that particular good,that is, when there is a rise in income of the consumer,the demand of that particular good falls.For example,coarse grains..

In economics goods market refers to a market where the buying and selling of goods can be done.

Human wants are unlimited since it is assumed more is always better and humans do not find himself in a situation of negative marginal returns. This is known as monotonic preference.

When any goods change in proportion between two different periods of time, then it is measured with the help of Quantity Index Numbers. In other words, we can say the study of measuring any proportionate change of goods in two different periods of time is called quantity index numbers.

A market is defined as a place (however it need not be a physical place, as now-days various transactions are carried out over the internet, even this is referred to as a 'market') where buyers and sellers meet to buy and sell respectively (ie exchange goods) at a predetermined equilibrium price. The market will clear at the price point where what people want to buy and what people are willing to sell is equal. 

An income effect is positive in case of normal goods. There is direct relationship between income and quantity demanded. Income effect is negative in case of inferior goods (including Giffen goods) where we find inverse relationship between income and quantity demanded.

Any Giffen good is an inferior good but all inferior goods cannot be Giffen goods. For Giffen goods, negative income effect is superior to substitution effect.

Human wants are unlimited and the resources to meet them are limited and have different uses. This gives rise to all the economic problems. 

An intangible good is a good that does not have a physical nature, as opposed to a physical good (an object). Buying a car is one of the example of tangible good.

Goods are tangible things which imply they can be touched and seen. The intangible things satisfying human wants are termed as services. Goods also help in the satisfaction of human wants or needs.

Status Symbol Commodity is associated with the name of Thorstein Veblen. These are the luxury goods as the demand of such goods increases with increase in its price. This is a contradiction of the law of demand. Since Veblen identified the concept, hence they are also called Veblen goods.

Scarce goods which are limited in supply are known as economic goods as economics deals with the optimum utilization of scarce resources to its alternative uses.

The goods and services that are necessary for a living are called needs. Needs are the essential things that you need for survival, to live properly. Thus, it is important to satisfy these needs as if we don’t satisfy needs, we will not be able to live long. For example, when we are hungry, a need arises for food.

Goods or services those are not necessary for living are called wants. Goods and services that are necessary for living are called needs. Needs are the things which are necessary for survival however wants are additions to needs. For example: if one is hungry, he needs food. This is need. However if he wants to eat Dosa because he is hungry, this is called want.

Export-Import Bank of India (EXIM Bank) is a specialized financial institution, owned by Government of India, set up in 1982, for financing, facilitating and promoting foreign trade of India.

Basic goods industry produces goods which are used by other industries as raw materials. For example: minerals, as minerals are used as raw material for other industries.

Economic goods refer to those goods which can be transferred from one place to another and can be exchanged for one another. For example, cloth is an economic good which can be transferred from one place to another; it can also be exchanged for another different good. ( Say pen)

Economic wants refer to the wants that are related to the satisfaction of own need by the way of consumption or profit earning. We fulfill these kind of wants through exchange mechanism, i.e., exchange of goods for profit.

Economic wants refer to the wants that result in monetary gain for the people who are demanding it. Therefore, to have some monetary gain there is need for consumption of some materialistic thing carrying some value for which money can be exchanged for.

Human wants are unlimited, so there is always a tendency that human wants get re-emerge even after the satisfaction is achieved on the consumption of the commodity as the wants keep on increasing after a passage of time and consumer also start demanding more variety of that commodity in order to achieve higher utility. 

Economics aims at the satisfaction of unlimited want by the way of efficient and effective methods to put the limited resources extracted from earth into an ideal way so that even if the means available for satisfaction of wants is limited we can still satisfy them to the maximum level.

Human wants refers to the demands of humans in order to satisfy themselves.

Maslow need hierarchy states that human wants are unlimited. As one want is met, it gives rise to other wants that are there in the hierarchy. Therefore, human wants are never ending because the world is very dynamic and humans try to adjust themselves into it. 

An economy will require an optimal proportion of consumer and capital goods in order to be sustainable in the long run. If too much focus is put into producing consumer goods, the future consumption and growth will be limited as capital goods are required in the production of consumer goods. If too much focus is put into producing capital goods, the current consumption will be limited.

An economy will require an optimal proportion of consumer and capital goods in order to be sustainable in the long run. If too much focus is put into producing consumer goods, the future consumption and growth will be limited as capital goods are required in the production of consumer goods. If too much focus is put into producing capital goods, the current consumption will be limited.

The problem of “whom to produce” relates to the distribution of available resources in the economy.

It also includes the contribution of the people in the total output and income of the economy.  

Due to the basic economic problem of scarcity, it is essential to choose which of the unlimited human wants and needs will be fulfilled by using the limited resources. This choice is usually made collectively by each economy, the laws of demand govern what people want and then the laws of supply aim to match it at an equilibrium seeking to make a profit. Thus the "what to produce?" takes into account what goods will be produced and how much of the good will be produced. 

Veblen goods are those good which holds some status in the society. It is believed that if price of such goods rises then the quantity demanded also increases.  

Voluntary savings are funds that individuals or organizations may willingly deposit or Withdraw. For your clients, the condition of an intended savings product means that: They can save money in a safe place to meet emergency and consumption. Required savings are those that individuals and institution are forced to make as per government rules. 

Thus, the correct option is A.

The price of inferior goods are very cheap and usually associated with low levels of income. So when the consumer's income rises they try to consume normal good and when there income decreases they consume inferior goods. 

The supply of a good refers to the amount of the good offered for sale at a particular price per unit(period) of time.

Non durable goods cannot be consumed more than once like bread, milk etc.

In case of inferior goods, as income increases demand decreases $(Ey < 0)$.

The slope of the curve i.e. marginal opportunity cost which states that for production of every successive unit of butter we need to sacrifice more and more of guns because resource are use specific. 

Excise duties are type of taxes which are charged against the production og goods when they are sold in the market. 

BOT =  export - Import i.e. $20 - 30 = 10$ crore deficit.

A substitute good is a good that can be used in place of another. It is a good with a positive cross elasticity of demand.

This means a good's demand is increased when the price of another good is increased; both in the same direction.

For example, if apples and oranges are substitutes for a consumer, then if the price of apples increases, the consumer will buy less of apples and more of oranges. Thus, when price of apples increases, the demand for oranges will rise. 

Juice and cold drinks can be taken in place of each other. Therefore,they are substitute goods as substitute goods are those goods where demand of one good rises when the price of another good gets increased.

Human wants are unlimited and resources are limited which leads to problem of choice. Thus the statement, 'there are limited wants' - is incorrect.

An inferior good is a good whose demand decreases when consumer income rises. 

A normal good's demand increases when the income rises, thus its income effect is positive.

Hence, the income effect for inferior good is negative.

For example as a consumer's income increases, his/her demand of the cheap cars will decrease, while demand for costly cars will increase. Here the cheap car is an inferior good for that consumer.

John Maynard Keynes, was a British economist. His ideas fundamentally changed the theory and practice of macroeconomics and the economic policies of governments. He built on and greatly refined earlier work on the causes of business cycles, and is widely considered to be one of the most influential economists of the 20th century and the founder of modern macroeconomics.

Wealth is defined as "anything which is useful, directly or indirectly, for satisfying human wants". Characteristics of wealth include:

• Externality is the quality of wealth which makes it valuable and able to be transferred.
  
• Appropriability: Wealth should be appropriate. It should be capable of being possessed or owned by the people.
  
• Transferability: Wealth should be transferred from one man to another. 

Wealth can be classified as personal wealth, social wealth or collective wealth, national wealth, and international wealth.

Personal Wealth (Individual Wealth): The wealth of a person consists of both material and non-material goods. Thus the wealth of the person includes such material things as land, houses, furniture, machinery and so on.

Social Wealth (Collective Wealth): Social wealth consists of all these goods that can be enjoyed by all members of a society. Social wealth includes public roads, public parks, public schools, government hospitals, public libraries, museums and so on.

National Wealth: National wealth includes individual wealth as well as the collective wealth of its members. That is, it includes besides individual wealth all kinds of public property, such as roads and canals, buildings and parks and water works.

Cosmopolitan Wealth: Cosmopolitan wealth is the wealth of the world. It belongs to no one nation in particular. A common example of cosmopolitan wealth is the ocean.

According to Marshall's definition, wealth is only a means to welfare. Marshall pointed out that for economics, wealth is not an end in itself but it is only a means to an end; the end being the promotion of human welfare. Thus, according to Marshall, wealth is only a secondary thing, it is man and his ordinary business of life which is the primary object of economic study. In fact, Marshall tried to make the study of economics an engine of social betterment.

AC Pigou defined economics as a "study of Economic welfare which is that part of social welfare that can be brought directly or indirectly into relation with the measuring rod of money". He gave more importance to the study of man than to wealth. Thus it focused more on human welfare and social science. 

Stock of man made goods (like machines) as well as natural resources(like land) ,resources like capital -is called national wealth All are referred as national assets.

In economics, stock is measured at one point of time and represent the amount of good exists at that point of time onlt and hence, wealth is a stock concept.

The increase in production of food grains indicates the increase in the welfare of the people. This is because it will directly benefit the people as they have a satisfactory level of food grains. The other options do not help the people of the economy as either these activities are illegal or they do not directly help in the production of food for the people to eat.

A government levy on the income, property, or wealth of people or companies. A direct tax is borne entirely by the entity that pays it, and cannot be passed on to another entity. The rest all are indirect taxes.

Wealth is defined as "anything which is useful, directly or indirectly, for satisfying human wants". Money is one kind of wealth. Wealth can be any asset, gold, vehicle etc.

Money has value in exchange but not value in use. Value in exchange is nothing but the goods and services which we may obtain in the market in exchange of a particular thing. Value in use is nothing but the satisfaction which one obtains from the use of a commodity for example water.

Wealth: it is defined as the stock of resources which can be used at present or in the future.

All the given options are the classifications of wealth:

• Private wealth: This includes all material and non material goods of an individual which can convert into money. 
  
• Public wealth: This includes all material and non material goods owned by a community together
  
• Negative Wealth: it is owned by an individual for a particular time period and then returned.
  
• National Wealth: it is the wealth owned by nation.
  

• Wealth: It is defined as the stock of resources which can be used at present or in the future.
  
• Income: It is the money obtained by flow of goods and services on regular basis.
  

Wealth-tax, that is, tax levied on personal capital was abolished from $1$ st April, $1993$.

According to Adam Smith who was a Scottish economist, economics is the science of wealth which means that economics aims at generating wealth both individually and for the nation as a whole. 

Alfred Marshall placed a greater emphasis on welfare rather than wealth, in his Principle of Economics" book published in 1890. Marshall defines economics as “a study of men as they live and move and think in the ordinary business of life.”

Economic does not contain any study material related to the theories and beliefs of war either from the past or in the future.

Adam Smith was a Scottish economist who published the book " The Nature and causes of wealth of Nations" where he explicitly focused on economics as a study of creation of wealth and henceforth its distribution. 

J B Say was a French economist who described economics as the science of wealth as he believed that economics is the study of creation of wealth.  

Exports and imports are the main elements of foreign trade.