In the 20th century, the economy changed and international trade developed. It enables us to improve our living standards. Therefore, it is necessary to understand why the country opened a borders and what the influence is. To do that, you need to understand what trade brings when you define a comparative advantage. After that, it is important to understand the impact of technical change on trade. It is therefore important that what trade is beneficial for everyone, whether it will lead to dangerous competition, why such behavior is done like protection, and what the result is is.
The only reliable way to provide a growing standard of living is to grow the economy and not to grow it. In the case of the US, this is at least 3% per year. The Republican candidate mentioned this, but the season of the presidential election almost ignored economic growth so far. But this is a matter of **. Indeed, this is the only problem except delaying population growth (this will reduce immigration). I have studied neoclassical economics and still believe it. However, as technology has been injected into our economy and society, I've seen it for 50 years. Neoclassical economics influences the government. It accepts that market mechanisms may fail and technology caused two market failures that we did not deal seriously.
If the production capacity increases, the economy can gradually produce more products, which increases living standards. The increase in economic production capacity is called economic growth. There are many factors that affect economic growth. Economic growth issues are being debated on many growth models including Harrod-Domar model, Neoclassical growth model of Solow and Swan, Growth model of Cambridge Kaldor and Joan Robinson. This part of the economic problem is being studied in economic development.
The measure of economic growth is the gross domestic product (GDP), the dollar value of the total output of US goods and services. A rapidly growing economy may have an annual GDP growth rate of 4%; a stagnant economy may grow at less than 1% per year. In the case of economic stagnation, the unemployment rate is high, productivity is low, and employment is difficult to find. The economic downturn is defined as the second consecutive quarterly negative GDP. In the 1970s, the US experienced a strange combination of the high unemployment rate and the high inflation rate. This is called stagflation.