چکیده:
In macroeconomics, economic analyses are divided temporally into three periods: short-term, medium-term, and long-term. In the short term, the assumption of constant parameters and static analyses, especially comparative statics, is considered. In the long term, the discussion of growth and the movement of variables over a long period is examined. The discussion regarding economic and business cycle fluctuations is mainly from a medium-term temporal perspective. In most countries in the world, whether developed or developing, economic cycles exist that differ from each other in terms of duration and intensity. The nature and reasons for the emergence of economic and business cycles is one of the important topics in macroeconomics, where different opinions exist among economists. In this article, twelve theories, each providing a type of explanation for economic cycles in countries around the world, are analyzed and examined.
خلاصه ماشینی:
In other words, is it possible to explain the characteristics of business cycles within the framework of the classical economic system, meaning whether at any moment in time, actors show an optimal reaction to their perceptions regarding prices and markets clear (are transparent).
In this theory, the level of expected prices and wages are adjusted with a time lag; therefore, continuous increase or decrease in the money supply causes the creation of economic cycles (fluctuations in the level of real output).
To explain further, the real business cycle model answers the question of how the rational optimization of individuals leads to economic changes over time.
An important point is to raise the question of why real business cycle theorists reject the New Classical economics explanation regarding the cause of short-term fluctuations in the level of production, while from other aspects, these two groups are very similar to each other.
Critics of the real business cycle theory, many of whom examine economic cycles from a Keynesian perspective, consider it to be the result of changes in nominal aggregate demand as well as changes occurring in supply-side variables.