In economics, the Gini coefficient (sometimes expressed as a Gini ratio or a normalized Gini index) is a measure of statistical dispersion intended to represent the income or wealth distribution of a nation's residents, and is the most commonly used measure of inequality. It was developed by the Italian statistician and sociologist Corrado Gini and published in his 1912 paper "Variability and Mutability" (). 

The Gini coefficient measures the inequality among values of a frequency distribution (for example, levels of income). A Gini coefficient of zero expresses perfect equality, where all values are the same (for example, where everyone has the same income). A Gini coefficient of 1 (or 100%) expresses maximal inequality among values (e.g., for a large number of people, where only one person has all the income or consumption, and all others have none, the Gini coefficient will be very nearly one). However, a value greater than one may occur if some persons represent negative contribution to the total (for example, having negative income or wealth). For larger groups, values close to or above 1 are very unlikely in practice. Given the normalization of both the cumulative population and the cumulative share of income used to calculate the Gini coefficient, the measure is not overly sensitive to the specifics of the income distribution, but rather only on how incomes vary relative to the other members of a population. The exception to this is in the redistribution of wealth resulting in a minimum income for all people. When the population is sorted, if their income distribution were to approximate a well-known function, then some representative values could be calculated. QUESTIONS:

Q1:
1. How might I measure a population's differences in income?
2. What is a method for figuring out differences in income amongst a population?
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Q2:
1. What is perfect equality under the Gini coefficient?
2. What does the Gini coefficient consider to be exact equality?
3. 
Q3:
1. Who invented the Gini coefficient?
2. Who came up with the Gini coefficient?
3. 
Q4:
1. Did Corrado Gini publish anything?
2. Did Corrado Gini make any of his work public?
3. 
Q5:
1. In what year did Corrado Gini publish his work?
2. What was the year of publication of Corrado Gini's work?
3. 
Q6:
1. What was Corrado Gini's work called?
2. What was the name of Corrado Gini's publication?
3. 
Q7:
1. What does the Gini coefficient generally measure?
2. What is the Gini coefficient primarily intended to measure?
3. 
Q8:
1. What does the Gini coefficient measure inequality in?
2. What is the context in which the Gini coeffficient measures inequality?
3. 
Q9:
1. Is the Gini coefficient used for anything besides income inequality?
2. Are there other uses for the Gini coefficient besides measuring income inequality?
3. 
Q10:
1. What is another name for the Gini coefficient?
2. What else is the Gini coefficient referred to as?
3. 
Q11:
1. What would the Gini coefficient be in a situation where one person has 100% of the wealth and others 0%?
2. If one person had all the money in a population, leaving the others with none, what would the Gini coefficient be measured at?
3. 
