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Related Concept Videos

Inequalities01:28

Inequalities

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Inequalities express mathematical relationships where two values are not equal and are compared using symbols such as <, >, ≤, or ≥. These expressions define a range of possible solutions rather than a single value. Interval notation provides a concise way to express these solution sets, especially when the variable spans a continuous range. An open interval, written as (a, b), excludes the endpoints, while a closed interval [a, b] includes them. There are also half-open...
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The measures of central tendency calculated from a data set may not reveal much about its intrinsic distribution. If a plot is made of the data set’s values, the mean and the median may not only differ, but also the plot may have more values on one side of the central tendencies. Such a data set is said to be skewed towards that side.
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Linear and nonlinear inequalities are fundamental for analyzing variable relationships and identifying ranges satisfying specific conditions. A linear inequality involves variables raised only to the first power, resulting in a straight-line graph. This line partitions the coordinate plane into two distinct regions: one that satisfies the inequality and one that does not. Each region represents a set of solutions where the linear relationship holds true under the specified constraint.Nonlinear...
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Application of Nonlinear Inequalities01:29

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A nonlinear inequality describes a comparison involving an expression that curves or behaves more complexly than a straight line. These inequalities often appear in forms that include squares, products, or variables in the denominator.To solve such an inequality, one starts by rewriting it so that zero appears on one side. For example, the inequality:  can be factored as: This form makes it easier to identify the values that cause the expression to equal zero. In this case, the...
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Solving Inequalities Graphically01:24

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Solving inequalities graphically involves using a visual approach to determine where a mathematical expression meets a specific condition, such as being greater than or less than another value. By examining the position of a graph relative to the x-axis or another graph, it becomes possible to identify the range of x-values that satisfy the inequality. This method provides an intuitive understanding of solution intervals by showing where the inequality holds true.Graphical solutions to...
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Close Relationships and Culture01:29

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Culture shapes how people approach attraction, choose partners, and build long-term relationships. While some preferences in mate selection appear consistent across cultures, such as men valuing physical attractiveness and women emphasizing financial resources, cultural contexts influence how these preferences are expressed and prioritized. Marriage extends beyond romantic ideals in many societies and is deeply embedded in social, economic, and religious frameworks.The Role of Culture in Mate...
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Determining Gender-Based Differences in Retinal and Choroidal Thickness in Underweight Individuals via Swept-Source Optical Coherence Tomography
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Income inequality in the developing world.

Martin Ravallion1

  • 1Department of Economics, Georgetown University, Washington, DC 20057, and National Bureau of Economic Research, Cambridge, MA 02138, USA.

Science (New York, N.Y.)
|May 24, 2014
PubMed
Summary
This summary is machine-generated.

Income inequality within developing nations is rising slowly, despite overall global reductions. High inequality hinders poverty reduction and economic growth, even with rising incomes.

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Area of Science:

  • Development Economics
  • Global Economic Trends
  • Socioeconomic Indicators

Background:

  • Global income inequality has decreased over the past 30 years, primarily due to reduced inequality between countries.
  • However, a nuanced view reveals a slow but steady rise in income inequality within developing countries.
  • This trend has remained relatively stable since the year 2000.

Purpose of the Study:

  • To analyze trends in income inequality within developing countries.
  • To examine the relationship between economic growth, income inequality, and poverty reduction.
  • To assess the impact of high inequality on future development prospects.

Main Methods:

  • Analysis of new data on income inequality over a 30-year period.
  • Comparative study of inequality trends between and within developing countries.
  • Statistical examination of the correlation between income growth, poverty incidence, and inequality levels.

Main Results:

  • While global inequality has fallen, average income inequality within developing countries has been gradually increasing.
  • Economic growth has generally reduced absolute poverty, but its effectiveness is diminished in more unequal nations.
  • Rising income gaps between the rich and poor are evident in growing economies.

Conclusions:

  • Despite a decrease in global income inequality, the internal inequality within developing countries warrants concern.
  • High levels of income inequality can impede economic growth and slow down progress in poverty reduction.
  • Addressing internal income inequality is crucial for sustainable development and poverty alleviation in developing nations.