Questions what is the main features of the socialist economy?

What is national economy?

Key words: country, income, market.
The national economy of a country is, in fact, based on small and medium industries. These are the fundamentals, the foundations of all national economies. There is already a change we can see in the ecosystem in Oman. Nowadays a lot of young Omanis want to establish their own businesses. Natural systems, like national economies, operate in an environment where there are limits to the growth they can achieve. In the early 1970s, Forrester and other systems experts used this concept to model industrial and world issues. ... The per capita income per person in the DRC in 2006 was only US$128 per year, which makes it one of the poorest in the world. There are a few countries which have a relatively high GDP per capita for developing countries. 
A variety of measures of national income and output are used in economics to estimate total economic activity in a country or region, including gross domestic product (GDP), gross national product (GNP), net national income (NNI), and adjusted national income.
A market economy allows the laws of supply and demand to control the production of goods and services.

94. 
    Forms of market. Give examples and explain.
    

Key words: system, product, supply and demand.
Supply-and-demand  is one of the most basic and fundamental concepts of economics and of a market economy. The relationship between supply and demand results in many decisions such as the price of an item and how many will be produced in order to allocate resources in the most cost-effective and efficient way.
Supply refers to the amount of goods that are available. Demand refers to how many people want those goods.

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  When supply of a product goes up, the price of a product goes down and demand for the product can rise because it costs loss.
  
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  At some point, too much of a demand for the product will cause the supply to diminish. As a result, prices will rise. The product will then become too expensive, demand will go down at that price and the price will fall.
  
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  Supply and demand should reach an equilibrium. The amount of goods being supplied is the same as the amount demanded and resources are allocated efficiently.