Economics and it's different type

Start writ.....Economics is the study of how people allocate scarce resources for production, distribution, and consumption, both individually and collectively.Assuming humans have unlimited wants within a world of limited means, economists analyze how resources are allocated for production, distribution, and consumption.Microeconomics is the social science that studies the implications of incentives and decisions, specifically how those affect the utilization and distribution of resources. Microeconomics shows how and why different goods have different values, how individuals and businesses conduct and benefit from efficient production and exchange, and how individuals best coordinate and cooperate with one another
Microeconomics studies the decisions of individuals and firms to allocate resources of production, exchange, and consumption.
Microeconomics deals with prices and production in single markets and the interaction between different markets but leaves the study of economy-wide aggregates to macroeconomics.
Microeconomists formulate various types of models based on logic and observed human behavior and test the models against real-world observations.
Concepts covered under microeconomics
Dearth, choice, and opportunity cost: The manifesto on which the microeconomics notion is built reclines at the very heart of economic reasonability of how the decision-makers pick between scanty resources that have substitute uses. The customers demand goods and services and the producers offer these for sale, but none of the individuals can acquire everything they require from the economic system.

Price mechanism: A prime part of the study of microeconomics is committed to the investigation of how prices are determined in the marketplace. Manufacturers and customers initiate forces that we term them as supply and demand accordingly, and it is their interaction within the marketplace that devises the price mechanism.

Demand: Demand is initiated by the needs of the customers. The nature of demand incurs much to the basic worth that customers discern the goods or services to possess.
Macroeconomics is a branch of economics that depicts a substantial picture. It scrutinises itself with the economy at a massive scale and several issues of an economy are considered. The issues confronted by an economy and the headway that it makes are measured and apprehended as a part and parcel of macroeconomics. When one speaks of the issues that an economy confronts, inflation, unemployment, increasing tax burden, etc., are all contemplated. This makes it apparent that macroeconomics focuses on large numbers.
Concepts covered under macroeconomics
A capitalist nation

A capitalist country is distinguished by sub-urbanised and voluntary conclusions for economic planning instead of the consolidated political practices. There are a few aspects of a capitalist financial structure (Economy) mentioned that would provide a better intuition into the concept. The attributes of a capitalist nation are as follows:

Liberty of customers to pick between goods and services.
The privilege of individuals to set up a business to supply goods and services.
There is a finite interference of the government.
Market forces regulate the distribution of goods.
Investment expenditure

As the name says it all, it is the money consumed towards charges to create investments. In other words, it is the money that the family circle (households) and enterprises spend on capital goods. It plays a decisive role in macroeconomic pursuit for business cycles and economic enhancement in the long run.

In short, the investment expenditure is proficient of creating additional income and fosters employment in a nation.

The following are the types of investments:

Autonomous investment
Financial investment
Real investment
Gross investment
Net investment
Revenue: Revenue is the total income of an entity through sale of goods and proffering its services to the customers. Revenue can be operating or non-operating. The significance of revenue and its acknowledgements is better comprehended if we are well aware of the aspects that are contemplated while deciding the GDP.
Micro Economics talks about the actions of an individual unit, i.e. an individual, firm, household, market, industry, etc. On the other hand, the Macro Economics studies the economy as a whole, i.e. it assesses not a single unit but the combination of all i.e. firms, households, nation, industries, market, etc.