The United States of America known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U. S. is the third most populous country. The capital is Washington, D. C. and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico; the State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean; the U. S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The diverse geography and wildlife of the United States make it one of the world's 17 megadiverse countries.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century; the United States emerged from the thirteen British colonies established along the East Coast. Numerous disputes between Great Britain and the colonies following the French and Indian War led to the American Revolution, which began in 1775, the subsequent Declaration of Independence in 1776; the war ended in 1783 with the United States becoming the first country to gain independence from a European power. The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties; the United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, displacing Native American tribes, admitting new states until it spanned the continent by 1848. During the second half of the 19th century, the Civil War led to the abolition of slavery.
By the end of the century, the United States had extended into the Pacific Ocean, its economy, driven in large part by the Industrial Revolution, began to soar. The Spanish–American War and World War I confirmed the country's status as a global military power; the United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, a permanent member of the United Nations Security Council. Sweeping civil rights legislation, notably the Civil Rights Act of 1964, the Voting Rights Act of 1965 and the Fair Housing Act of 1968, outlawed discrimination based on race or color. During the Cold War, the United States and the Soviet Union competed in the Space Race, culminating with the 1969 U. S. Moon landing; the end of the Cold War and the collapse of the Soviet Union in 1991 left the United States as the world's sole superpower. The United States is the world's oldest surviving federation, it is a representative democracy.
The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, other international organizations. The United States is a developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for a quarter of global GDP; the U. S. economy is post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U. S. holds 31% of the total wealth in the world, the largest share of global wealth concentrated in a single country. Despite wide income and wealth disparities, the United States continues to rank high in measures of socioeconomic performance, including average wage, human development, per capita GDP, worker productivity.
The United States is the foremost military power in the world, making up a third of global military spending, is a leading political and scientific force internationally. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere America in honor of the Italian explorer and cartographer Amerigo Vespucci; the first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq. to George Washington's aide-de-camp and Muster-Master General of the Continental Army, Lt. Col. Joseph Reed. Moylan expressed his wish to go "with full and ample powers from the United States of America to Spain" to seek assistance in the revolutionary war effort; the first known publication of the phrase "United States of America" was in an anonymous essay in The Virginia Gazette newspaper in Williamsburg, Virginia, on April 6, 1776. The second draft of the Articles of Confederation, prepared by John Dickinson and completed by June 17, 1776, at the latest, declared "The name of this Confederation shall be the'United States of America'".
The final version of the Articles sent to the states for ratification in late 1777 contains the sentence "The Stile of this Confederacy shall be'The United States of America'". In June 1776, Thomas Jefferson wrote the phrase "UNITED STATES OF AMERICA" in all capitalized letters in the headline of his "original Rough draught" of the Declaration of Independence; this draft of the document did not surface unti
A census is the procedure of systematically acquiring and recording information about the members of a given population. The term is used in connection with national population and housing censuses; the United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory and defined periodicity", recommends that population censuses be taken at least every 10 years. United Nations recommendations cover census topics to be collected, official definitions and other useful information to co-ordinate international practice; the word is of Latin origin: during the Roman Republic, the census was a list that kept track of all adult males fit for military service. The modern census is essential to international comparisons of any kind of statistics, censuses collect data on many attributes of a population, not just how many people there are. Censuses began as the only method of collecting national demographic data, are now part of a larger system of different surveys.
Although population estimates remain an important function of a census, including the geographic distribution of the population, statistics can be produced about combinations of attributes e.g. education by age and sex in different regions. Current administrative data systems allow for other approaches to enumeration with the same level of detail but raise concerns about privacy and the possibility of biasing estimates. A census can be contrasted with sampling in which information is obtained only from a subset of a population. Modern census data are used for research, business marketing, planning, as a baseline for designing sample surveys by providing a sampling frame such as an address register. Census counts are necessary to adjust samples to be representative of a population by weighting them as is common in opinion polling. Stratification requires knowledge of the relative sizes of different population strata which can be derived from census enumerations. In some countries, the census provides the official counts used to apportion the number of elected representatives to regions.
In many cases, a chosen random sample can provide more accurate information than attempts to get a population census. A census is construed as the opposite of a sample as its intent is to count everyone in a population rather than a fraction. However, population censuses rely on a sampling frame to count the population; this is the only way to be sure that everyone has been included as otherwise those not responding would not be followed up on and individuals could be missed. The fundamental premise of a census is that the population is not known and a new estimate is to be made by the analysis of primary data; the use of a sampling frame is counterintuitive as it suggests that the population size is known. However, a census is used to collect attribute data on the individuals in the nation; this process of sampling marks the difference between historical census, a house to house process or the product of an imperial decree, the modern statistical project. The sampling frame used by census is always an address register.
Thus it is not known how many people there are in each household. Depending on the mode of enumeration, a form is sent to the householder, an enumerator calls, or administrative records for the dwelling are accessed; as a preliminary to the dispatch of forms, census workers will check any address problems on the ground. While it may seem straightforward to use the postal service file for this purpose, this can be out of date and some dwellings may contain a number of independent households. A particular problem is what are termed'communal establishments' which category includes student residences, religious orders, homes for the elderly, people in prisons etc; as these are not enumerated by a single householder, they are treated differently and visited by special teams of census workers to ensure they are classified appropriately. Individuals are counted within households and information is collected about the household structure and the housing. For this reason international documents refer to censuses of housing.
The census response is made by a household, indicating details of individuals resident there. An important aspect of census enumerations is determining which individuals can be counted from which cannot be counted. Broadly, three definitions can be used: de facto residence; this is important to consider individuals who have temporary addresses. Every person should be identified uniquely as resident in one place but where they happen to be on Census Day, their de facto residence, may not be the best place to count them. Where an individual uses services may be more useful and this is at their usual, or de jure, residence. An individual may be represented at a permanent address a family home for students or long term migrants, it is necessary to have a precise definition of residence to decide whether visitors to a country should be included in the population count. This is becoming more important as students travel abroad for education for a period of several years. Other groups causing problems of enumeration are new born babies, people away on holiday, people moving home around census day, people without a fixed address.
People having second homes because of working in another part of the country or retaining a holiday cottage are dif
Population density is a measurement of population per unit area or unit volume. It is applied to living organisms, most of the time to humans, it is a key geographical term. In simple terms population density refers to the number of people living in an area per kilometer square. Population density is population divided by total land water volume, as appropriate. Low densities may lead to further reduced fertility; this is called the Allee effect after the scientist. Examples of the causes in low population densities include: Increased problems with locating sexual mates Increased inbreeding For humans, population density is the number of people per unit of area quoted per square kilometer or square mile; this may be calculated for a county, country, another territory or the entire world. The world's population is around 7,500,000,000 and Earth's total area is 510,000,000 square kilometers. Therefore, the worldwide human population density is around 7,500,000,000 ÷ 510,000,000 = 14.7 per km2. If only the Earth's land area of 150,000,000 km2 is taken into account human population density is 50 per km2.
This includes all continental and island land area, including Antarctica. If Antarctica is excluded population density rises to over 55 people per km2. However, over half of the Earth's land mass consists of areas inhospitable to human habitation, such as deserts and high mountains, population tends to cluster around seaports and fresh-water sources. Thus, this number by itself does not give any helpful measurement of human population density. Several of the most densely populated territories in the world are city-states and dependencies; these territories have a small area and a high urbanization level, with an economically specialized city population drawing on rural resources outside the area, illustrating the difference between high population density and overpopulation The potential to maintain the agricultural aspects of deserts is limited as there is not enough precipitation to support a sustainable land. The population in these areas are low. Therefore, cities in the Middle East, such as Dubai, have been increasing in population and infrastructure growth at a fast pace.
Cities with high population densities are, by some, considered to be overpopulated, though this will depend on factors like quality of housing and infrastructure and access to resources. Most of the most densely populated cities are in Southeast Asia, though Cairo and Lagos in Africa fall into this category. City population and area are, however dependent on the definition of "urban area" used: densities are invariably higher for the central city area than when suburban settlements and the intervening rural areas are included, as in the areas of agglomeration or metropolitan area, the latter sometimes including neighboring cities. For instance, Milwaukee has a greater population density when just the inner city is measured, the surrounding suburbs excluded. In comparison, based on a world population of seven billion, the world's inhabitants, as a loose crowd taking up ten square feet per person, would occupy a space a little larger than Delaware's land area; the Gaza Strip has a population density of 5,046 pop/km.
Although arithmetic density is the most common way of measuring population density, several other methods have been developed to provide a more accurate measure of population density over a specific area. Arithmetic density: The total number of people / area of land Physiological density: The total population / area of arable land Agricultural density: The total rural population / area of arable land Residential density: The number of people living in an urban area / area of residential land Urban density: The number of people inhabiting an urban area / total area of urban land Ecological optimum: The density of population that can be supported by the natural resources Demography Human geography Idealized population Optimum population Population genetics Population health Population momentum Population pyramid Rural transport problem Small population size Distance sampling List of population concern organizations List of countries by population density List of cities by population density List of city districts by population density List of English districts by population density List of European cities proper by population density List of United States cities by population density List of islands by population density List of U.
S. states by population density List of Australian suburbs by population density Selected Current and Historic City, Ward & Neighborhood Density Duncan Smith / UCL Centre for Advanced Spatial Analysis. "World Population Density". Exploratory map shows data from the Global Human Settlement Layer produced by the European Commission JRC and the CIESIN Columbia University
The Dallas Mavericks are an American professional basketball team based in Dallas, Texas. The Mavericks compete in the National Basketball Association as a member club of the league's Western Conference Southwest Division; the team plays its home games at the American Airlines Center, which it shares with the National Hockey League's Dallas Stars. As of the 2017 season, the Mavericks have sold out 704 consecutive games since December 15, 2001, the longest running sellout streak in North American major league sports. Since their inaugural 1980–81 season, the Mavericks have won three division titles, two conference championships, one NBA championship. In 1978, Californian businessman Garn Eckardt met Dallas lawyer Doug Adkins, mentioned he was trying to raise capital to move an NBA team to the city. Asking for a possible partner, Adkins recommended him one of his clients, Home Interiors and Gifts owner Don Carter. Negotiations with Eckardt fell through, but Carter remained interested in the enterprise as a gift to his wife Linda, who played basketball while at Duncanville High School.
At the same time, Buffalo Braves president and general manager Norm Sonju developed an interest in bringing the NBA to Dallas as he studied possible new locations for the ailing franchise. While the Braves went to California as the San Diego Clippers, Sonju returned to Texas, was introduced to Carter by mayor Robert Folsom, one of the owners and team president of the last professional basketball team in the city, the Dallas Chaparrals of the American Basketball Association, which moved to San Antonio in 1973 to become the San Antonio Spurs. Sonju and Carter tried purchasing both the Milwaukee Bucks and the Kansas City Kings, but disagreement on relocation stalled the negotiations, leading them to instead aim for an expansion team; the league was reluctant to expand to Dallas, given Texas had both the Spurs and Houston Rockets, the 1978–79 NBA season was proving unprofitable and unpopular. Still, during the 1979 NBA All-Star Game weekend, NBA commissioner Larry O'Brien announced the league would add two new teams in the 1980–81 season, with teams in Dallas and Minneapolis.
Once the Minnesota team backed out, only Dallas remained, through negotiations with general counselor and future commissioner David Stern, the expansion fee was settled on the $12.5 million. Carter would provide half the amount. At the 1980 NBA All-Star Game, league owners voted to admit the new team, with the team's name coming from the 1957–1962 TV western Maverick. James Garner, who played the namesake character, was a member of the ownership group; the University of Texas at Arlington, who uses the Mavericks nickname, had objections about a shared name, but did not attempt any legal action. They joined the Midwest Division of the Western Conference, where they would stay until the league went to six divisions for the 2004–05 season. Dick Motta, who had guided the Washington Bullets to the NBA Championship in 1977–78, was hired as the team's first head coach, he had a well-earned reputation of being a stern disciplinarian, but was a great teacher of the game. Kiki Vandeweghe of UCLA was drafted by the Mavs with the 11th pick of the 1980 NBA draft, but Vandeweghe refused to play for the expansion Mavericks and staged a holdout that lasted a month into the team's inaugural season.
Vandeweghe was traded to the Denver Nuggets, along with a first-round pick, in 1981, in exchange for two future first-round picks that materialized into Rolando Blackman in 1981 and Sam Perkins in 1984. In the Mavericks' debut game, taking place in the brand-new Reunion Arena, the Mavericks defeated the Spurs, 103–92, but the Mavs started the season with a 6–40 record on their way to finishing 15–67. However, the Mavericks did make a player acquisition that, while it seemed minor at the time, turned out to play a important role in the early years of their franchise. Journeyman 6 ft 3 in guard Brad Davis, who played for the Anchorage Northern Knights of the Continental Basketball Association, was tracked down and signed by the Mavs in December. At the time, there was no reason to expect that Davis would be any better than the expansion-level talent the Mavs had, but he started the Mavs' final 26 games, led the team in assists, his career soared. He spent the next twelve years with the Mavericks, his number 15 jersey was retired.
The Mavericks marked the first NBA team to have a profitable debut season, with an average of 7,789 spectators. The 1981 NBA Draft brought three players; the Mavs selected 6'6" forward Mark Aguirre with the first pick, 6'6" guard Rolando Blackman 9th, 6'7" forward Jay Vincent 24th. By the end of his seven-year Mavs career, Aguirre would average 24.6 points per game. Blackman contributed 19.2 points over his 11-year career in Dallas. But it was Jay Vincent who made the biggest difference for the Mavs in their second season, leading the team in scoring with 21.4 points per game and earning NBA All-Rookie Team honors. The Mavericks improved to 28–54, getting out of the Midwest Division cellar as they finished above the Utah Jazz. In 1982–83, the Mavericks were serious contenders for the first time. At the All-Star break, they had won 12 of their last 15 games, they could not sustain that momentum and finished seven games behind the Denver Nuggets for the sixth and final playoff spot in the Western Conference.
But the Mavs' 38–44 re
Major League Baseball
Major League Baseball is a professional baseball organization, the oldest of the four major professional sports leagues in the United States and Canada. A total of 30 teams play with 15 teams in each league; the NL and AL were formed as separate legal entities in 1901 respectively. After cooperating but remaining separate entities beginning in 1903, the leagues merged into a single organization led by the Commissioner of Baseball in 2000; the organization oversees Minor League Baseball, which comprises 256 teams affiliated with the Major League clubs. With the World Baseball Softball Confederation, MLB manages the international World Baseball Classic tournament. Baseball's first all-professional team was founded in Cincinnati in 1869; the first few decades of professional baseball were characterized by rivalries between leagues and by players who jumped from one team or league to another. The period before 1920 in baseball was known as the dead-ball era. Baseball survived a conspiracy to fix the 1919 World Series, which came to be known as the Black Sox Scandal.
The sport rose in popularity in the 1920s, survived potential downturns during the Great Depression and World War II. Shortly after the war, Jackie Robinson broke baseball's color barrier; the 1950s and 1960s were a time of expansion for the AL and NL new stadiums and artificial turf surfaces began to change the game in the 1970s and 1980s. Home runs dominated the game during the 1990s, media reports began to discuss the use of anabolic steroids among Major League players in the mid-2000s. In 2006, an investigation produced the Mitchell Report, which implicated many players in the use of performance-enhancing substances, including at least one player from each team. Today, MLB is composed of 1 in Canada. Teams play 162 games each season and five teams in each league advance to a four-round postseason tournament that culminates in the World Series, a best-of-seven championship series between the two league champions that dates to 1903. Baseball broadcasts are aired on television and the Internet throughout North America and in several other countries throughout the world.
MLB has the highest season attendance of any sports league in the world with more than 73 million spectators in 2015. MLB is governed by the Major League Baseball Constitution; this document has undergone several incarnations since its creation in 1876. Under the direction of the Commissioner of Baseball, MLB hires and maintains the sport's umpiring crews, negotiates marketing and television contracts. MLB maintains a unique, controlling relationship over the sport, including most aspects of Minor League Baseball; this is due in large part to the 1922 U. S. Supreme Court ruling in Federal Baseball Club v. National League, which held that baseball is not interstate commerce and therefore not subject to federal antitrust law; this ruling has been weakened only in subsequent years. The weakened ruling granted more stability to the owners of teams and has resulted in values increasing at double-digit rates. There were several challenges to MLB's primacy in the sport between the 1870s and the Federal League in 1916.
The chief executive of MLB is the commissioner Rob Manfred. The chief operating officer is Tony Petitti. There are five other executives: president, chief communications officer, chief legal officer, chief financial officer, chief baseball officer; the multimedia branch of MLB, based in Manhattan, is MLB Advanced Media. This branch oversees each of the 30 teams' websites, its charter states that MLB Advanced Media holds editorial independence from the league, but it is under the same ownership group and revenue-sharing plan. MLB Productions is a structured wing of the league, focusing on video and traditional broadcast media. MLB owns 67 percent of MLB Network, with the other 33 percent split between several cable operators and satellite provider DirecTV, it operates out of studios in Secaucus, New Jersey, has editorial independence from the league. In 1920, the weak National Commission, created to manage relationships between the two leagues, was replaced with the much more powerful Commissioner of Baseball, who had the power to make decisions for all of professional baseball unilaterally.
From 1901 to 1960, the American and National Leagues fielded eight teams apiece. In the 1960s, MLB expansion added eight teams, including the first non-U. S. Team. Two teams were added in the 1970s. From 1969 through 1993, each league consisted of an West Division. A third division, the Central Division, was formed in each league in 1994; until 1996, the two leagues met on the field only during the All-Star Game. Regular-season interleague play was introduced in 1997. In March 1995 two new franchises, the Arizona Diamondbacks and Tampa Bay Devil Rays, were awarded by MLB, to begin play in 1998; this addition brought the total number of franchises to 30. In early 1997, MLB decided to assign one new team to each league: Tampa Bay joined the AL and Arizona joined the NL; the original plan was to have an odd number of teams in each league, but in order for every team to be able to play daily, this would have required interleague play to be scheduled throughout the entire season. However, it
The Chicago Cubs are an American professional baseball team based in Chicago, Illinois. The Cubs compete in Major League Baseball as a member club of the National League Central division; the team plays its home games at Wrigley Field, located on the city's North Side. The Cubs are one of two major league teams in Chicago; the Cubs, first known as the White Stockings, were a founding member of the NL in 1876, becoming the Chicago Cubs in 1903. The Cubs have appeared in a total of eleven World Series; the 1906 Cubs won 116 games, finishing 116–36 and posting a modern-era record winning percentage of.763, before losing the World Series to the Chicago White Sox by four games to two. The Cubs won back-to-back World Series championships in 1907 and 1908, becoming the first major league team to play in three consecutive World Series, the first to win it twice. Most the Cubs won the 2016 National League Championship Series and 2016 World Series, which ended a 71-year National League pennant drought and a 108-year World Series championship drought, both of which are record droughts in Major League Baseball.
The 108-year drought was the longest such occurrence in all major North American sports. Since the start of divisional play in 1969, the Cubs have appeared in the postseason nine times through the 2017 season; the Cubs are known as "the North Siders", a reference to the location of Wrigley Field within the city of Chicago, in contrast to the White Sox, whose home field is located on the South Side. The Cubs have multiple rivalries. There is a divisional rivalry with the St. Louis Cardinals, a newer rivalry with the Milwaukee Brewers and an interleague rivalry with the Chicago White Sox; the Cubs began playing in 1870 as the Chicago White Stockings, joining the National League in 1876 as a charter member. Owner William Hulbert signed multiple star players, such as pitcher Albert Spalding and infielders Ross Barnes, Deacon White, Adrian "Cap" Anson, to join the team prior to the N. L.'s first season. The White Stockings played their home games at West Side Grounds and established themselves as one of the new league's top teams.
Spalding won forty-seven games and Barnes led the league in hitting at.429 as Chicago won the first National League pennant, which at the time was the game's top prize. After back-to-back pennants in 1880 and 1881, Hulbert died, Spalding, who had retired to start Spalding sporting goods, assumed ownership of the club; the White Stockings, with Anson acting as player-manager, captured their third consecutive pennant in 1882, Anson established himself as the game's first true superstar. In 1885 and'86, after winning N. L. pennants, the White Stockings met the champions of the short-lived American Association in that era's version of a World Series. Both seasons resulted in matchups with the St. Louis Brown Stockings, with the clubs tying in 1885 and with St. Louis winning in 1886; this was the genesis of what would become one of the greatest rivalries in sports. In all, the Anson-led Chicago Base Ball Club won six National League pennants between 1876 and 1886; as a result, Chicago's club nickname transitioned, by 1890 they had become known as the Chicago Colts, or sometimes "Anson's Colts", referring to Cap's influence within the club.
Anson was the first player in history credited with collecting 3,000 career hits. After a disappointing record of 59–73 and a ninth-place finish in 1897, Anson was released by the Cubs as both a player and manager. Due to Anson's absence from the club after 22 years, local newspaper reporters started to refer to the Colts as the "Orphans". After the 1900 season, the American Base-Ball League formed as a rival professional league, incidentally the club's old White Stockings nickname would be adopted by a new American League neighbor to the south. In 1902, who by this time had revamped the roster to boast what would soon be one of the best teams of the early century, sold the club to Jim Hart; the franchise was nicknamed the Cubs by the Chicago Daily News in 1902, although not becoming the Chicago Cubs until the 1907 season. During this period, which has become known as baseball's dead-ball era, Cub infielders Joe Tinker, Johnny Evers, Frank Chance were made famous as a double-play combination by Franklin P. Adams' poem Baseball's Sad Lexicon.
The poem first appeared in the July 1910 edition of the New York Evening Mail. Mordecai "Three-Finger" Brown, Jack Taylor, Ed Reulbach, Jack Pfiester, Orval Overall were several key pitchers for the Cubs during this time period. With Chance acting as player-manager from 1905 to 1912, the Cubs won four pennants and two World Series titles over a five-year span. Although they fell to the "Hitless Wonders" White Sox in the 1906 World Series, the Cubs recorded a record 116 victories and the best winning percentage in Major League history. With the same roster, Chicago won back-to-back World Series championships in 1907 and 1908, becoming the first Major League club to play three times in the Fall Classic and the first to win it twice. However, the Cubs would not win another World Series until 2016; the next season, veteran catcher Johnny Kling left the team to become a professional pocket billiards player. Some historians think Kling's absence was significant enough to prevent the Cubs from winning a third straight title in 1909, as they finished 6 games out of first place.
When Kling returned the next year, the Cubs won the pennant again, but lost to the Philadelphia Athletics in the 1910 World Series. In 1914, adver
Per capita income
Per capita income or average income measures the average income earned per person in a given area in a specified year. It is calculated by dividing the area's total income by its total population. Per capita income is national income divided by population size. Per capita income is used to measure an area's average income and compare the wealth of different populations. Per capita income is used to measure a country's standard of living, it is expressed in terms of a used international currency such as the euro or United States dollar, is useful because it is known, is calculable from available gross domestic product and population estimates, produces a useful statistic for comparison of wealth between sovereign territories. This helps to ascertain a country's development status, it is one of the three measures for calculating the Human Development Index of a country. In the United States, it is defined by the U. S. Census Bureau as the following: "Per capita income is the mean money income received in the past 12 months computed for every man and child in a geographic area."
Critics claim that per capita income has several weaknesses in measuring prosperity: Comparisons of per capita income over time need to consider inflation. Without adjusting for inflation, figures tend to overstate the effects of economic growth. International comparisons can be distorted by cost of living differences not reflected in exchange rates. Where the objective is to compare living standards between countries, adjusting for differences in purchasing power parity will more reflect what people are able to buy with their money, it does not reflect income distribution. If a country's income distribution is skewed, a small wealthy class can increase per capita income while the majority of the population has no change in income. In this respect, median income is more useful when measuring of prosperity than per capita income, as it is less influenced by outliers. Non-monetary activity, such as barter or services provided within the family, is not counted; the importance of these services varies among economies.
Per capita income does not consider whether income is invested in factors to improve the area's development, such as health, education, or infrastructure. List of countries by average wage List of countries by GDP per capita—GDP at market or government official exchange rates per inhabitant List of countries by GDP per capita—GDP calculated at purchasing power parity exchange per inhabitant List of countries by GNI per capita List of countries by GNI per capita List of countries by income equality Total personal income