Key Points

The economic problem is the problem of choice, which arises because human wants are unlimited but the resources to satisfy them are scarce and have alternative uses.

Scarcity refers to the fundamental situation where the resources available to a society are limited compared to the collective wants and needs of its people.

This problem involves deciding which goods and services to produce and in what quantities, given the scarce resources. For example, a society must choose between producing consumer goods or capital goods.

This problem concerns the choice of technique for production. A society must decide whether to use more labor-intensive or more capital-intensive (machine-based) methods.

This problem deals with the distribution of the produced goods and services among the individuals in the economy. It addresses how the national product is shared among the population.

The Production Possibility Frontier is a curve that shows all possible combinations of two goods that can be produced with a given amount of resources and technology, assuming full and efficient utilization.

Any point on the PPF represents full and efficient use of resources. A point inside the curve indicates underutilization or inefficient use of resources.

Opportunity cost is the value of the next-best alternative that must be forgone to pursue a certain action. On a PPF, it is the amount of one good that is sacrificed to produce an additional unit of another good.

In a centrally planned economy, the government or a central authority makes all major decisions regarding production, exchange, and consumption of goods and services.

A market economy is one in which all economic activities are organized through the market, where prices and free interaction of individuals guide decisions on production and consumption.

A mixed economy combines elements of both centrally planned and market economies. Important decisions are taken by the government, but economic activities are largely conducted through the market.

Positive economics studies how an economic system actually functions, focusing on facts, data, and cause-and-effect relationships. It deals with 'what is' and avoids value judgments.

Normative economics deals with what 'ought to be' or what is desirable. It involves value judgments and opinions about how the economy should work and which policies are best.

Microeconomics is the branch of economics that studies the behavior of individual economic units, such as households, firms, and markets for specific goods and services.

Macroeconomics is the branch of economics that studies the economy as a whole. It focuses on aggregate variables like total output, national income, employment, and the overall price level.