Concept
Procyclical and countercyclical variables are variables that fluctuate in a way that is positively or negatively correlated with business cycle fluctuations in gross domestic product (GDP). The scope of the concept may differ between the context of macroeconomic theory and that of economic policy–making. The concept is often encountered in the context of a government's approach to spending and taxation. A 'procyclical fiscal policy' can be summarised simply as governments choosing to increase government spending and reduce taxes during an economic expansion, but reduce spending and increase taxes during a recession. A 'countercyclical' fiscal policy takes the opposite approach: reducing spending and raising taxes during a boom period, and increasing spending and cutting taxes during a recession. In business cycle theory and finance, any economic quantity that is positively correlated with the overall state of the economy is said to be procyclical. That is, any quantity that tends to increase in expansion and tend to decrease in a recession is classified as procyclical. Gross Domestic Product (GDP) is an example of a procyclical economic indicator. Many stock prices are also procyclical because they tend to increase when the economy is growing quickly. Conversely, any economic quantity that is negatively correlated with the overall state of the economy is said to be countercyclical. That is, quantities that tend to increase when the overall economy is slowing down are classified as 'countercyclical'. Unemployment is an example of a countercyclical variable. Similarly, business failures and stock market prices tend to be countercyclical. In finance, an asset that tends to do well while the economy as a whole is doing poorly is referred to as countercyclical, and could be for example a business or a financial instrument whose value is derived from sales of an inferior good. Procyclical has a different meaning in the context of economic policy. In this context, it refers to any aspect of economic policy that could magnify economic or financial fluctuations.