Sociology Plus
Business Cycle Definition
A business cycle refers to recurring fluctuations in economic activity, characterised by phases of expansion, contraction, and decline. This pattern typically involves an initial period of above-average growth known as the expansionist phase, followed by a recession marked by lower than average growth, and subsequently a depression involving negative growth.
Modern View and Duration
Contemporary economists generally estimate that these cycles occur over a relatively short timeframe, often assuming a duration of approximately five years. However, there is no universal consensus regarding the precise causes driving these fluctuations, with some theorists arguing that the variations themselves may be random rather than uniformly structured.
Historical Cycles
Beyond the short-term view, longer-term economic cycles have been identified by various scholars. For instance, the Russian-born American development economist Simon Kuznets identified a longer cycle, often termed the ‘Kuznets cycle’, which is estimated to span between fifteen and twenty years.
Long Waves
A distinct concept involves so-called Kondratieff cycles, named after the Russian economist who developed the theory in the 1920s. These represent ‘long wave’ cycles of boom and recession that typically average about half a century. These long waves are theorised to be fuelled by major technological and industrial advancements, such as the introduction of steam power.