1)What are some features of macroeconomics?

2)What are the three most important concepts in macroeconomics?

3)What is the difference between real calculation and nominal calculation in macroeconomics?

1)It aims to study of the economy as a whole and considers aggregate factors of the economy like aggregate demand, national income, aggregate supply, general price level, aggregate supply, unemployment .and national productivity.

It helps to formulate income analysis by studying the factors responsible for national income of the economy. It creates policies that help to achieve economic growth and efficiency and generate better opportunity to every individual of the society

Macroeconomics deals with study of general equilibrium which says that the behavior of economy is dependent on other factors of the economy like for example a general analysis as to how the changes in policies by the central bank will change the investments and savings of the economy. It tends to have an overall view of the economy by studying the aggregates and their relationships among them.

2)The three most important concepts in macroeconomics are:

1. Unemployment. It refers to a situation when individuals who are able and willing to work cannot find work. In economics, the unemployment rate is the percentage of individuals who do not have jobs. The unemployment rate is the key indicator of the economy's health because it shows that the aggregate labor market is not in equilibrium.
2. Inflation. It refers to a persistent rise in the general price level. An excessive rate of inflation can have a number of adverse effects on the economy. Inflation occurs when the economy grows quickly. Macroeconomics dictate some measure which governments can take to reduce inflation.
3. Gross Domestic Product (GDP). The GDP is the total monetary value of final goods and services produced within the geographical boundaries of a country. Economic growth leads to an increase in the goods and services available in a country. By measuring the GDP, economists can follow the market's swings and changes at any given time.

3)Macroeconomics involves the study of how the limited resources are utilized by a whole economy in production of goods and services for consumption. Economies can be those of state or even the world. The overall decisions concerning the economic factors affecting the whole economy are made. The economic factors affecting the state include the total national earning, the rate of employment, inflation and deflation rates and the total worth of the goods and services produced in the state among others.

The following are the differences between real and nominal calculations in macroeconomics:

1. Real calculations are based on the value of the goods and services while nominal calculations are based on the monetary value.

2. Real calculations are adjusted to accommodate the effect by the factors of inflation while nominal calculations are not adjusted.

3. The real value remain unchanged while the nominal value depends on the current price of the asset at the time of calculation.