Demand shock in the context of "Demand"

In economics, inflation is an increase in the average price of goods and services in terms of money. This increase is measured using a price index, typically a consumer price index (CPI). When the general price level rises, each unit of currency buys fewer goods and services; consequently, inflation corresponds to a reduction in the purchasing power of money. The opposite of CPI inflation is deflation, a decrease in the general price level of goods and services. The common measure of inflation is the inflation rate, the annualized percentage change in a general price index.

Changes in inflation are widely attributed to fluctuations in real demand for goods and services (also known as demand shocks, including changes in fiscal or monetary policy), changes in available supplies such as during energy crises (also known as supply shocks), or changes in inflation expectations, which may be self-fulfilling. Moderate inflation affects economies in both positive and negative ways. The negative effects would include an increase in the opportunity cost of holding money; uncertainty over future inflation, which may discourage investment and savings; and, if inflation were rapid enough, shortages of goods as consumers begin hoarding out of concern that prices will increase in the future. Positive effects include reducing unemployment due to nominal wage rigidity, allowing the central bank greater freedom in carrying out monetary policy, encouraging loans and investment instead of money hoarding, and avoiding the inefficiencies associated with deflation.

In economics, a recession is a business cycle contraction that occurs when there is a period of broad decline in economic activity. Recessions generally occur when there is a widespread drop in spending (an adverse demand shock). This may be triggered by various events, such as a financial crisis, an external trade shock, an adverse supply shock, the bursting of an economic bubble, or a large-scale anthropogenic or natural disaster (e.g. a pandemic). There is no official definition of a recession, according to the International Monetary Fund.

In the United States, a recession is defined as "a significant decline in economic activity spread across the market, lasting more than a few months, normally visible in real GDP, real income, employment, industrial production, and wholesale-retail sales." The European Union has adopted a similar definition. In the United Kingdom and Canada, a recession is defined as negative economic growth for two consecutive quarters.

Price gouging is a pejorative term for the practice of increasing the prices of goods, services, or commodities to a level much higher than is considered reasonable or fair by some. This commonly applies to price increases of basic necessities after natural disasters. Usually, this event occurs after a demand or supply shock. The term can also be used to refer to profits obtained by practices inconsistent with a competitive free market, or to windfall profits. In some jurisdictions of the United States during civil emergencies, price gouging is a specific crime. Price gouging is considered by some to be exploitative and unethical and by others to be a simple result of supply and demand.

Price gouging is similar to profiteering but can be distinguished by being short-term and localized and by being restricted to essentials such as food, clothing, shelter, medicine, and equipment needed to preserve life and property. In jurisdictions where there is no such crime, the term may still be used to pressure firms to refrain from such behavior. The term is used directly in laws and regulations in the United States and Canada, but legislation exists internationally with similar regulatory purpose under existing competition laws.

Market monetarism is a school of macroeconomics that advocates that central banks use a nominal GDP level target instead of inflation, unemployment, or other measures of economic activity, with the goal of mitigating demand shocks such as those experienced during the 2008 financial crisis and the 2021–2023 inflation surge. Market monetarists criticize the fallacy that low interest rates always correspond to easy money. Market monetarists are sceptical about fiscal stimulus, noting that it is usually offset by monetary policy.