A consumer price index (CPI) measures changes in the price level of consumer goods and services purchased by households. The CPI in the United States is defined by the Bureau of Labor Statistics as "a measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services."

The CPI is a statistical estimate constructed using the prices of a sample of representative items whose prices are collected periodically. Sub-indexes and sub-sub-indexes are computed for different categories and sub-categories of goods and services, being combined to produce the overall index with weights reflecting their shares in the total of the consumer expenditures covered by the index. It is one of several price indices calculated by most national statistical agencies. The annual percentage change in a CPI is used as a measure of inflation. A CPI can be used to index (i.e., adjust for the effect of inflation) the real value of wages, salaries, pensions, for regulating prices and for deflating monetary magnitudes to show changes in real values. In most countries, the CPI is, along with the population census and the USA National Income and Product Accounts, one of the most closely watched national economic statistics.

Robert Bernard Reich ( /ˈraɪʃ/; born June 24, 1946) is an American political economist, professor, author, and political commentator. He served in the administrations of Presidents Gerald Ford and Jimmy Carter and was Secretary of Labor under President Bill Clinton from 1993 to 1997.

Reich is currently Chancellor's Professor of Public Policy at the Goldman School of Public Policy at the University of California, Berkeley. He was formerly a professor at Harvard University's John F. Kennedy School of Government and professor of social and economic policy at the Heller School for Social Policy and Management of Brandeis University. He has also been a contributing editor of The New Republic, The American Prospect (also chairman and founding editor), Harvard Business Review, The Atlantic, The New York Times, and The Wall Street Journal.

Reich is a political commentator on programs including Hardball with Chris Matthews, This Week with George Stephanopoulos, CNBC's Kudlow & Company, and APM's Marketplace. In 2008, Time Magazine named him one of the Ten Best Cabinet Members of the century, and The Wall Street Journal in 2008 placed him sixth on its list of the "Most Influential Business Thinkers". He was appointed a member of President-elect Barack Obama's economic transition advisory board.

Simone Ehivet Gbagbo (born 20 June 1949) is an Ivorian politician. She is the President of the Parliamentary Group of the Ivorian Popular Front (FPI) and is a Vice-President of the FPI. As the wife of Laurent Gbagbo, the President of Côte d'Ivoire from 2000 to 2011, she was also first lady prior to their arrest by pro-Ouattara forces.

Born in 1949 in the Moossou neighborhood of Grand-Bassam, Côte d'Ivoire, her parents are Jean Ehivet, a local police officer, and Marie Djaha. Simone Gbagbo trained as an historian and earned a third cycle doctorate in oral literature. She worked in applied linguistics, as a Marxist labor union leader, and is an Evangelical Christian in a church with close ties to the United States. She is the mother of five daughters, the last two with her current husband Laurent Gbagbo. She has been nicknamed in the Ivorian press the Hillary Clinton des tropiques.

Ehivet Gbagbo participated in the teachers strike movement of 1982, and helped found, with her future husband, the clandestine political group which became the FPI. An active trades union militant in the 1970s, she was imprisoned a number of times during the struggle for multiparty elections.

Laurent Gbagbo (Gagnoa Bété: Gbagbo [ɡ͡baɡ͡bo]; French pronunciation: [loʁɑ̃ kudu baɡbo]; born 31 May 1945) was the fourth President of Côte d'Ivoire of ethnic Bété from 2000 until his arrest in April 2011. A historian by profession, he is also an amateur chemist and physicist.

Gbagbo was imprisoned in the early 1970s and again in the early 1990s, and he lived in exile in France during much of the 1980s as a result of his union activism. Gbagbo founded the Ivorian Popular Front (FPI) in 1982 and ran unsuccessfully for President against Félix Houphouët-Boigny at the start of multi-party politics in 1990. He also won a seat in the National Assembly of Côte d'Ivoire in 1990.

Gbagbo claimed victory after Robert Guéï, head of a military junta, barred other leading politicians from running against Gbagbo in the October 2000 presidential election. Gbagbo supporters took to the streets, toppling Guéï. Gbagbo was then installed as President.

Following the 2010 presidential election, Gbagbo challenged the vote count, alleged fraud, and refused to stand down. He called for the annulment of results from nine of the country's regions. Alassane Ouattara was declared the winner and was recognized as such by election observers, the international community, the African Union (AU), and the Economic Community of West African States. However, the Constitutional Council, which according to Article 94 of the Ivorian Constitution both determines disputes in and proclaims the results of Presidential elections, declared that Gbagbo had won. After a short period of civil conflict, Gbagbo was arrested by the Republican Army of Ivory Coast. In November 2011, he was extradited to the International Criminal Court, becoming the first head of state to be taken into the court's custody.