Macroeconomics is a branch of economics that deals with the economy as a whole, rather than individual markets or industries. It studies the behavior and performance of the economy at the national or global level, and focuses on the following key areas:

1. Gross Domestic Product (GDP): The total value of all goods and services produced in an economy over a certain period of time.

2. Inflation: The sustained increase in the overall price level of goods and services in an economy.

3. Unemployment: The number of people who are without work and actively seeking employment.

4. Interest rates: The cost of borrowing money, which can influence investment, spending, and economic growth.

5. Money and banking: The role of money and financial institutions in the economy, and how they affect economic performance.

6. International trade: The exchange of goods and services between countries, and how it affects the global economy.

Macroeconomics also examines the impact of government policies, such as fiscal and monetary policy, on the economy. The goal of macroeconomic analysis is to understand and explain the factors that determine economic growth, inflation, and other key indicators of economic performance, and to develop policies that can promote stability and prosperity.

Macroeconomic tendencies in the private sector and the government are interrelated and can have a significant impact on each other. Some key relationships include:

1. Government spending and taxation: The government can influence the economy through its spending and taxation policies. For example, government spending can stimulate economic growth, while taxes can affect consumer behavior and the behavior of businesses.

2. Monetary policy: The central bank can influence the economy through monetary policy, such as adjusting interest rates or controlling the money supply. These actions can impact the private sector by affecting borrowing costs, investment, and consumer spending.

3. Business cycles: The ups and downs of the business cycle can affect the private sector by changing the demand for goods and services, and by altering the availability of credit and investment.

4. Inflation: High inflation can reduce the purchasing power of consumers and businesses, and can increase the cost of borrowing. The government can use monetary policy to control inflation and promote price stability.

5. Unemployment: High unemployment can reduce consumer spending, and can increase government spending on social programs. The government can use fiscal policy to stimulate job growth and reduce unemployment.

6. Investment: The private sector can drive economic growth through investment in new capital, such as factories, equipment, and technology.

7. Consumer spending: Consumer spending is a major driver of economic growth and can be influenced by factors such as income, interest rates, and confidence.

8. International trade: The exchange of goods and services between countries can affect the global economy and the competitiveness of individual businesses and industries.

Overall, macroeconomic tendencies in the private sector and government can be influenced by a wide range of factors, and can have a profound impact on the overall performance of the economy. Understanding these tendencies and the relationships between the private sector and government is a key goal of macroeconomics.