In economics, inflation is a general increase in the prices of goods and services in an economy. This is usually measured using the 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. As prices faced by households do not all increase at the same rate, the consumer price index (CPI) is often used for this purpose.
Purchasing power parity (PPP) is a measure of the price of specific goods in different countries and is used to compare the absolute purchasing power of the countries' currencies. PPP is effectively the ratio of the price of a market basket at one location divided by the price of the basket of goods at a different location. The PPP inflation and exchange rate may differ from the market exchange rate because of tariffs, and other transaction costs.
A consumer price index (CPI) is a price index, the price of a weighted average market basket of consumer goods and services purchased by households. Changes in measured CPI track changes in prices over time. The CPI is calculated by using a representative basket of goods and services. The basket is updated periodically to reflect changes in consumer spending habits. The prices of the goods and services in the basket are collected monthly from a sample of retail and service establishments. The prices are then adjusted for changes in quality or features. Changes in the CPI can be used to track inflation over time and to compare inflation rates between different countries. The CPI is not a perfect measure of inflation or the cost of living, but it is a useful tool for tracking these economic indicators.
A progressive tax is a tax in which the tax rate increases as the taxable amount increases. The term progressive refers to the way the tax rate progresses from low to high, with the result that a taxpayer's average tax rate is less than the person's marginal tax rate. The term can be applied to individual taxes or to a tax system as a whole. Progressive taxes are imposed in an attempt to reduce the tax incidence of people with a lower ability to pay, as such taxes shift the incidence increasingly to those with a higher ability-to-pay. The opposite of a progressive tax is a regressive tax, such as a sales tax, where the poor pay a larger proportion of their income compared to the rich.
Indexation is a technique to adjust income payments by means of a price index, in order to maintain the purchasing power of the public after inflation, while deindexation is the unwinding of indexation. It is often used to make sure regular payments, such as pension payments keep pace with inflation, so that they have the same value in real terms over time.
The affordability of housing in the UK reflects the ability to rent or buy property. There are various ways to determine or estimate housing affordability. One commonly used metric is the median housing affordability ratio; this compares the median price paid for residential property to the median gross annual earnings for full-time workers. According to official government statistics, housing affordability worsened between 2020 and 2021, and since 1997 housing affordability has worsened overall, especially in London. The most affordable local authorities in 2021 were in the North West, Wales, Yorkshire and The Humber, West Midlands and North East.
In the United Kingdom, the Retail Prices Index or Retail Price Index (RPI) is a measure of inflation published monthly by the Office for National Statistics. It measures the change in the cost of a representative sample of retail goods and services.
In statistics, economics, and finance, an index is a statistical measure of change in a representative group of individual data points. These data may be derived from any number of sources, including company performance, prices, productivity, and employment. Economic indices track economic health from different perspectives. Examples include the consumer price index, which measures changes in retail prices paid by consumers, and the cost-of-living index (COLI), which measures the relative cost of living over time.
Per diem or daily allowance is a specific amount of money that an organization gives an individual, typically an employee, per day to cover living expenses when travelling on the employer's business.
Affordable housing is housing which is deemed affordable to those with a household income at or below the median as rated by the national government or a local government by a recognized housing affordability index. Most of the literature on affordable housing refers to mortgages and a number of forms that exist along a continuum – from emergency homeless shelters, to transitional housing, to non-market rental, to formal and informal rental, indigenous housing, and ending with affordable home ownership.
A novated lease is a motor vehicle lease which has been novated, that is, the obligations in the contract have been transferred from one party to another.
United States military pay is money paid to members of the United States Armed Forces. The amount of pay varies according to the member's rank, time in the military, location duty assignment, and by some special skills the member may have.
The United States Consumer Price Index (CPI) is a family of various consumer price indices published monthly by the United States Bureau of Labor Statistics (BLS). The most commonly used indices are the CPI-U and the CPI-W, though many alternative versions exist for different uses. For example, the CPI-U is the most popularly cited measure of consumer inflation in the United States, while the CPI-W is used to index Social Security benefit payments.
Median household disposable income in the UK was £29,400 in the financial year ending (FYE) 2019, up 1.4% (£400) compared with growth over recent years; median income grew by an average of 0.7% per year between FYE 2017 and FYE 2019, compared with 2.8% between FYE 2013 and FYE 2017.
The middle-class squeeze refers to negative trends in the standard of living and other conditions of the middle class of the population. Increases in wages fail to keep up with inflation for middle-income earners, leading to a relative decline in real wages, while at the same time, the phenomenon fails to have a similar effect on the top wage earners. People belonging to the middle class find that inflation in consumer goods and the housing market prevent them from maintaining a middle-class lifestyle, undermining aspirations of upward mobility.
Cost of Living Allowance (COLA) is an entitlement given to military servicemen and women United States military living in high-cost areas or stationed overseas. It is intended to compensate service members for the high cost of living at certain duty stations. COLA is also given to other US government employees living abroad, dependent upon agency.
According to the law, the term adjustment may appear in varied contexts, as a synonym for terms with unrelated definitions:
The United States Chained Consumer Price Index (C-CPI-U), also known as chain-weighted CPI or chain-linked CPI is a time series measure of price levels of consumer goods and services created by the Bureau of Labor Statistics as an alternative to the US Consumer Price Index. It is based on the idea that when prices of different goods change at different rates, consumers will adjust their purchasing patterns by purchasing more of products whose relative prices have declined and fewer of those whose relative price has increased. This reduces the cost of living reported, but has no change on the cost of living; it is simply a way of accounting for a microeconomic "substitution effect." The "fixed weight" CPI also takes such substitutions into account, but does so through a periodic adjustment of the "basket of goods" that it represents, rather than through a continuous adjustment in that basket. Application of the chained CPI to federal benefits has been controversially proposed to reduce the federal deficit.
Since late 2021, the prices for many essential goods in the United Kingdom began increasing faster than household incomes, resulting in a fall in real incomes. The phenomenon has been termed a cost-of-living crisis. This is caused in part by a rise in inflation in both the UK and the world in general, as well as the economic impact of issues such as the COVID-19 pandemic, Russia's invasion of Ukraine and Brexit. While all in the UK are affected by rising prices, it most substantially affects low-income persons. The British government has responded in various ways such as grants, tax rebates, and subsidies to electricity and gas suppliers.
