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203:
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298:. Pareto noted that approximately 80% of Italy's land was owned by 20% of the population. Juran applied the observation that 80% of an issue is caused by 20% of the causes to quality issues. Later during his career, Juran preferred to describe this as "the vital few and the useful many" to highlight that the contribution of the remaining 80% should not be discarded entirely.
146:
906:
All of the terms are independent of each other by definition. Interdependent factors appear as multiplication terms. The Pareto principle states that the effect of the dominant term is very much greater than the second-largest effect term, which in turn is very much greater than the third, and so on.
391:
The term 80/20 is only a shorthand for the general principle at work. In individual cases, the distribution could be nearer to 90/10 or 70/30. There is also no need for the two numbers to add up to the number 100, as they are measures of different things. The Pareto principle is an illustration of a
902:
The remarkable success of statistically based searches for root causes is based upon a combination of an empirical principle and mathematical logic. The empirical principle is usually known as the Pareto principle. With regard to variation causality, this principle states that there is a non-random
865:
professionals use the Pareto principle to underline the importance of hazard prioritization. Assuming 20% of the hazards account for 80% of the injuries, and by categorizing hazards, safety professionals can target those 20% of the hazards that cause 80% of the injuries or accidents. Alternatively,
849:
noted that by fixing the top 20% of the most-reported bugs, 80% of the related errors and crashes in a given system would be eliminated. Lowell Arthur expressed that "20% of the code has 80% of the errors. Find them, fix them!" It was also discovered that, in general, 80% of a piece of software can
632:
Pareto analysis is a creative way of looking at causes of problems because it helps stimulate thinking and organize thoughts. However, it can be limited by its exclusion of possibly important problems which may be small initially, but will grow with time. It should be combined with other analytical
910:
The mathematical logic is known as the square-root-of-the-sum-of-the-squares axiom. This states that the variation caused by the steepest slope must be squared, and then the result added to the square of the variation caused by the second-steepest slope, and so on. The total observed variation is
648:
or Fish-bone
Analysis can be used to identify the root causes of the problems. While it is common to refer to pareto as "80/20" rule, under the assumption that, in all situations, 20% of causes determine 80% of problems, this ratio is merely a convenient rule of thumb and is not, nor should it be
628:
Pareto analysis is a formal technique useful where many possible courses of action are competing for attention. In essence, the problem-solver estimates the benefit delivered by each action, then selects a number of the most effective actions that deliver a total benefit reasonably close to the
951:
said 20% of patients incurred 80% of healthcare expenses due to chronic conditions. A 2021 analysis showed unequal distribution of healthcare costs, with older patients and those with poorer health incurring more costs. The 80/20 rule has been proposed as a rule of thumb for the infection
914:
The combination of the Pareto principle and the square-root-of-the-sum-of-the-squares axiom means that the strongest term in the general equation totally dominates the observed variation of effect. Thus, the strongest term will dominate the data collected for hypothesis testing.
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911:
then the square root of the total sum of the variation caused by individual slopes squared. This derives from the probability density function for multiple variables or the multivariate distribution (we are treating each term as an independent variable).
898:
and procurement for the purpose of optimizing stock of goods, as well as costs of keeping and replenishing that stock. In engineering control theory, such as for electromechanical energy converters, the 80/20 principle applies to optimization efforts.
938:
approach, based on individual behavior rules defined for each agent in the economy. Wealth distribution and Pareto's 80/20 principle emerged in their results, which suggests the principle is a collective consequence of these individual rules.
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Aside from ensuring efficient accident prevention practices, the Pareto principle also ensures hazards are addressed in an economical order, because the technique ensures the utilized resources are best used to prevent the most accidents.
610:
1420:
Yakovenko, Victor M.; Silva, A. Christian (2005), Chatterjee, Arnab; Yarlagadda, Sudhakar; Chakrabarti, Bikas K. (eds.), "Two-class
Structure of Income Distribution in the USA: Exponential Bulk and Power-law Tail",
719:. Pareto noticed that approximately 80% of Italy's land was owned by 20% of the population. He then carried out surveys on a variety of other countries and found to his surprise that a similar distribution applied.
404:
phenomena. This fact explains the frequent breakdowns of sophisticated financial instruments, which are modeled on the assumption that a
Gaussian relationship is appropriate to something like stock price movements.
368:
The demonstration of the Pareto principle is explained by a large proportion of process variation being associated with a small proportion of process variables. This is a special case of the wider phenomenon of
1087:
644:
This technique helps to identify the top portion of causes that need to be addressed to resolve the majority of problems. Once the predominant causes are identified, then tools like the
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if hazards are addressed in random order, a safety professional is more likely to fix one of the 80% of hazards that account only for some fraction of the remaining 20% of injuries.
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be written in 20% of the total allocated time. Conversely, the hardest 20% of the code takes 80% of the time. This factor is usually a part of
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The application of the Pareto analysis in risk management allows management to focus on those risks that have the most impact on the project.
1942:
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Report, which showed that the richest 20% of the world's population receives 82.7% of the world's income. However, among nations, the
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suggest that the Pareto
Principle can be applied to the role of the 20% most talented individuals in generating the majority of
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and earthquakes. Because it is self-similar over a wide range of magnitudes, it produces outcomes completely different from
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274:) for a particular set of parameters. Many natural phenomena are distributed according to power law statistics. It is an
1851:
Klass, O. S.; Biham, O.; Levy, M.; Malcai, O.; Soloman, S. (2006), "The Forbes 400 and the Pareto wealth distribution",
1611:
Juran, Joseph M., Frank M. Gryna, and
Richard S. Bingham. Quality control handbook. Vol. 3. New York: McGraw-Hill, 1974.
1536:
Pressman, Roger S. (2010). Software
Engineering: A Practitioner's Approach (7th ed.). Boston, Mass: McGraw-Hill, 2010.
1978:
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2003:
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1996:
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698:-axis. The vertical dotted line separates the important causes (on the left) and trivial causes (on the right)
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956:. However, the degree of infectiousness has been found to be distributed continuously in the population. In
792:
and AC Silva analyzed income data from the US Internal
Revenue Service from 1983 to 2001 and found that the
333:
206:
The Pareto principle may apply to fundraising, i.e. 20% of the donors contributing towards 80% of the total.
105:
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developed the concept in the context of quality control and improvement after reading the works of
Italian
248:
1958:
451:
2065:
230:
226:) states that for many outcomes, roughly 80% of consequences come from 20% of causes (the "vital few").
62:
1620:
Shainin, Richard D. “Strategies for
Technical Problem Solving.” 1992, Quality Engineering, 5:3, 433-448
662:
Arrange the rows in decreasing order of importance of the causes (i.e., the most important cause first)
1973:
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In 1941, Joseph M. Juran, a
Romanian-born American engineer, came across the work of Italian polymath
2045:
1783:
1723:
1128:
953:
935:
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The principle also holds within the tails of the distribution. The physicist Victor Yakovenko of the
694:-axis to intersect the curve. Then draw a vertical dotted line from the point of intersection to the
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There is no explanation for this phenomenon; that is why we refer to it as an empirical principle.
903:
distribution of the slopes of the numerous (theoretically infinite) terms in the general equation.
793:
638:
401:
370:
279:
271:
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reported that 80% of revenue came from 20% of videotapes (although rarely rented classics such as
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1118:
1051:
Box, George E.P.; Meyer, R. Daniel (1986). "An Analysis for Unreplicated Fractional Factorials".
1021:
701:
Explicitly review the chart to ensure that causes for at least 80% of the problems are captured
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31:
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was owned by 20% of the population. The Pareto principle is only tangentially related to the
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2019:
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976: – Hypothesis that more people will lurk in a virtual community than will participate
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244:
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1983:
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923:
380:, which is one of the parameters characterizing a Pareto distribution, is chosen as
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879:
442:
374:
1864:
1831:
Bookstein, Abraham (1990), "Informetric distributions, part I: Unified overview",
1381:. FAO, United Nations – Economic and Social Development Department. Archived from
1337:
1631:
804:
237:
1911:"The size distribution of cities: an examination of the Pareto law and primacy"
605:{\displaystyle A:B=\left({\frac {1+H}{2}}\right):\left({\frac {1-H}{2}}\right)}
202:
17:
2072:
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1910:
1772:"Superspreading and the effect of individual variation on disease emergence"
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A Pareto analysis in a diagram showing which cause should be addressed first
397:
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241:
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Add a cumulative percentage column to the table, then plot the information
1984:
Simply Psychology: Pareto Principle (The 80-20 Rule): Examples & More
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1845:
10.1002/(SICI)1097-4571(199007)41:5<368::AID-ASI8>3.0.CO;2-C
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with super-spreading, the majority of individuals infect relatively few
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of the richest 1–3% of the population also follows Pareto's principle.
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Living the 80/20 Way: Work Less, Worry Less, Succeed More, Enjoy More
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shows that wealth distributions vary substantially around this norm.
247:, who wrote in 1906 about the 80/20 connection while teaching at the
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340:. Statements consisting only of original research should be removed.
112:. Statements consisting only of original research should be removed.
1988:
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1963:
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5 ≈ 1.16, then one has 80% of effects coming from 20% of causes.
1691:. Peterson Center on Healthcare and the Kaiser Family Foundation
1992:
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Growing Artificial Societies: Social Science from the Bottom-Up
1523:
Microsoft's CEO: 80–20 Rule Applies To Bugs, Not Just Features
305:
139:
77:
36:
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Reed, W. J. (2001), "The Pareto, Zipf and other power laws",
1202:
Manuale di economia politica ("Manual of political economy")
1770:
Lloyd-Smith, JO; Schreiber, SJ; Kopp, PE; Getz, WM (2005).
1275:
How Nature Works: the science of self-organized criticality
1225:"Pareto Principle (80/20 Rule) & Pareto Analysis Guide"
1662:"Myrl Weinberg: In health-care reform, the 20-80 solution"
1171:"The 80/20 Rule of Sales: How to Find Your Best Customers"
890:
techniques. The Pareto principle serves as a baseline for
722:
A chart that demonstrated the effect appeared in the 1992
255:, Pareto showed that approximately 80% of the land in the
1423:
Econophysics of Wealth Distributions: Econophys-Kolkata I
655:
Steps to identify the important causes using 80/20 rule:
266:
Mathematically, the 80/20 rule is roughly described by a
1685:"How do health expenditures vary across the population?"
1425:, New Economic Windows, Springer Milan, pp. 15–23,
1376:"Poverty, Growth, and Inequality over the Next 50 Years"
1833:
Journal of the American Society for Information Science
396:" relationship, which also occurs in phenomena such as
329:
160:
101:
1765:
1763:
27:
Statistical principle about ratio of effects to causes
1935:
The handbook of logistics and distribution management
1017:"Joseph Juran, 103, Pioneer in Quality Control, Dies"
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must be stocked to appear to have a good selection).
534:
454:
445:(H) can be computed. In this case both are the same:
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1104:"Power laws, Pareto Distributions, and Zipf's law"
604:
517:
1959:Pareto Principle: Rule of causes and consequences
988: – Humorous aphorism in computer programming
1507:Genetic Algorithms and Engineering Optimization
1500:
1498:
659:Form a frequency of occurrences as a percentage
1560:. Toronto, ON: Ryerson University. p. 86.
1082:. F. Rouge (Lausanne) & F. Pichon (Paris).
994: – "Ninety percent of everything is crap"
690:Draw a horizontal dotted line at 80% from the
165:sources that evaluate within a broader context
2004:
1979:Wealth Condensation in Pareto Macro-Economies
1933:Rushton, A.; Oxley, J.; Croucher, P. (2000),
30:For the optimal allocation of resources, see
8:
1712:"Epidemiology: Dimensions of superspreading"
1572:"Introduction to Risk-based Decision-Making"
715:Pareto's observation was in connection with
1710:Galvani, Alison P.; May, Robert M. (2005).
1359:United Nations Development Program (1992),
1080:Cours d'Économie Politique (in two volumes)
421:" notation (for example, 0.8:0.2) and with
71:Learn how and when to remove these messages
2011:
1997:
1989:
1197:Pareto, Vilfredo; Page, Alfred N. (1971),
949:Agency for Healthcare Research and Quality
878:The Pareto principle is the basis for the
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356:Learn how and when to remove this message
190:Learn how and when to remove this message
128:Learn how and when to remove this message
1630:Epstein, Joshua; Axtell, Robert (1996),
1401:Human Development Report 1992, Chapter 3
732:
649:considered, an immutable law of nature.
1875:, London: Nicholas Brealey Publishing,
1097:
1095:
1004:
841:the Pareto principle can be applied to
1192:
1190:
1689:Peterson-Kaiser Health System Tracker
1010:
1008:
801:Talent: How to Identify Entrepreneurs
679:Plot (#2) a bar graph with causes on
155:focuses too much on specific examples
7:
1969:ParetoRule.cf : The Pareto Rule
1937:(2nd ed.), London: Kogan Page,
1600:Rushton, Oxley & Croucher (2000)
1046:
1044:
790:University of Maryland, College Park
282:that "80% of sales come from 20% of
1459:, No 13, avril-may-juin 2023, p. 71
1363:, New York: Oxford University Press
918:In the systems science discipline,
518:{\displaystyle H=G=|2A-1|=|1-2B|\,}
2167:Tails of probability distributions
1909:Rosen, K. T.; Resnick, M. (1980),
724:United Nations Development Program
25:
1520:Rooney, Paula (October 3, 2002),
1472:"A Tight Squeeze at Video Stores"
894:and XYZ-analysis, widely used in
668:Plot (#1) a curve with causes on
635:failure mode and effects analysis
409:Gini coefficient and Hoover index
52:This article has multiple issues.
1964:ParetoRule.cf : Pareto Rule
1683:Sawyer, Bradley; Claxton, Gary.
1660:Weinberg, Myrl (July 27, 2009).
1491:from the original on 2015-05-25.
1469:Kleinfield, N. R. (1988-05-01).
1318:Project Risk and Risk Management
854:estimating for software coding.
734:Distribution of world GDP, 1989
310:
144:
82:
41:
2152:Statistical charts and diagrams
2036:The Rise and Fall of the Elites
1015:Bunkley, Nick (March 3, 2008).
882:, one of the key tools used in
874:Engineering and quality control
672:- and cumulative percentage on
402:Normal or Gaussian distribution
60:or discuss these issues on the
1374:Hillebrand, Evan (June 2009).
1258:The Plymouth Student Scientist
1169:Marshall, Perry (2013-10-09).
1078:Pareto, Vilfredo (1896–1897).
1065:10.1080/00401706.1986.10488093
863:Occupational health and safety
858:Occupational health and safety
510:
493:
485:
468:
270:distribution (also known as a
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1974:About.com: Pareto's Principle
1903:10.1016/S0165-1765(01)00524-9
1865:10.1016/j.econlet.2005.08.020
1361:1992 Human Development Report
1927:10.1016/0094-1190(80)90043-1
1557:Safety Evaluation Techniques
224:principle of factor sparsity
1581:. United States Coast Guard
1505:Gen, M.; Cheng, R. (2002),
1306:, pp. 229–252, 274–285
683:- and percent frequency on
336:the claims made and adding
108:the claims made and adding
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1915:Journal of Urban Economics
1554:Woodcock, Kathryn (2010).
943:Health and social outcomes
253:Cours d'économie politique
29:
2105:Italian school of elitism
1141:10.1080/00107510500052444
741:
738:
1457:Paris Vous Aime Magazine
1277:, Springer, p. 89,
982: – Health statistic
302:Mathematical explanation
2137:Problem solving methods
1431:10.1007/88-470-0389-x_2
739:Quintile of population
2162:Statistical principles
1666:The Providence Journal
1322:Retrieved May 16, 2010
1251:"The Pareto Principle"
936:decentralized modeling
928:agent-based simulation
845:efforts. For example,
629:maximal possible one.
625:
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249:University of Lausanne
207:
2066:Circulation of elites
954:superspreading events
884:total quality control
717:population and wealth
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607:
520:
251:. In his first work,
231:management consultant
205:
2132:Eponyms in economics
2046:The Mind and Society
1111:Contemporary Physics
1102:Newman, MEJ (2005).
1029:on September 6, 2017
532:
452:
371:Pareto distributions
220:law of the vital few
161:improve this article
1796:10.1038/nature04153
1788:2005Natur.438..355L
1728:2005Natur.438..293G
1579:USCG Safety Program
1133:2005ConPh..46..323N
815:. According to the
794:income distribution
735:
639:fault tree analysis
431:inequality measures
280:business management
272:Pareto distribution
214:(also known as the
1477:The New York Times
1340:on 8 February 2012
1022:The New York Times
986:Ninety–ninety rule
962:secondary contacts
826:Gone with the Wind
821:video rental shops
733:
626:
602:
515:
321:possibly contains
208:
93:possibly contains
2114:
2113:
2080:Pareto efficiency
1944:978-0-7494-3365-9
1891:Economics Letters
1871:Koch, R. (2004),
1853:Economics Letters
1782:(7066): 355–359.
1722:(7066): 293–295.
1542:978-0-07-337597-7
1509:, New York: Wiley
1440:978-88-470-0389-7
1334:"Pareto Analysis"
1211:978-0-678-00881-2
920:Joshua M. Epstein
807:and entrepreneur
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261:Pareto efficiency
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1025:. Archived from
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1001:
970:
945:
876:
860:
835:
813:economic growth
713:
708:
618:
582:
576:
553:
547:
530:
529:
450:
449:
411:
387:
362:
351:
345:
342:
327:
315:
311:
304:
296:Vilfredo Pareto
292:
245:Vilfredo Pareto
234:Joseph M. Juran
196:
185:
184:
183:
178:
172:
169:
158:
149:
145:
134:
123:
117:
114:
99:
87:
83:
46:
42:
35:
28:
23:
22:
18:80/20 principle
15:
12:
11:
5:
2185:
2183:
2175:
2174:
2169:
2164:
2159:
2154:
2149:
2147:Rules of thumb
2144:
2139:
2134:
2129:
2119:
2118:
2112:
2111:
2109:
2108:
2100:
2098:
2094:
2093:
2091:
2090:
2083:
2076:
2069:
2061:
2059:
2055:
2054:
2052:
2051:
2041:
2030:
2028:
2024:
2023:
2018:
2016:
2015:
2008:
2001:
1993:
1987:
1986:
1981:
1976:
1971:
1966:
1961:
1954:
1953:External links
1951:
1950:
1949:
1943:
1930:
1921:(2): 165–186,
1906:
1886:
1881:
1868:
1859:(2): 290–295,
1848:
1839:(5): 368–375,
1826:
1823:
1820:
1819:
1759:
1702:
1675:
1672:on 2009-08-02.
1652:
1646:
1622:
1613:
1604:
1602:, pp. 107–108.
1592:
1563:
1546:
1529:
1512:
1494:
1461:
1453:Paris Aéroport
1445:
1439:
1412:
1391:
1388:on 2017-10-20.
1366:
1351:
1325:
1316:David Litten,
1309:
1303:The Black Swan
1289:
1283:
1262:
1241:
1216:
1210:
1200:Translation of
1186:
1161:
1117:(5): 323–351.
1091:
1070:
1040:
1003:
1002:
1000:
997:
996:
995:
992:Sturgeon's law
989:
983:
977:
969:
966:
944:
941:
875:
872:
859:
856:
834:
831:
819:in 1988, many
817:New York Times
784:
783:
780:
776:
775:
772:
768:
767:
764:
760:
759:
756:
752:
751:
748:
744:
743:
740:
712:
709:
707:
704:
703:
702:
699:
688:
677:
666:
663:
660:
633:tools such as
617:
614:
613:
612:
600:
595:
591:
588:
585:
579:
575:
571:
566:
562:
559:
556:
550:
546:
543:
540:
537:
526:
525:
512:
508:
505:
502:
499:
495:
491:
487:
483:
480:
477:
474:
470:
466:
463:
460:
457:
410:
407:
385:
364:
363:
318:
316:
309:
303:
300:
291:
288:
198:
197:
180:
179:
152:
150:
143:
136:
135:
90:
88:
81:
76:
50:
49:
47:
40:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
2184:
2173:
2170:
2168:
2165:
2163:
2160:
2158:
2155:
2153:
2150:
2148:
2145:
2143:
2140:
2138:
2135:
2133:
2130:
2128:
2125:
2124:
2122:
2106:
2102:
2101:
2099:
2097:Miscellaneous
2095:
2088:
2084:
2081:
2077:
2074:
2070:
2067:
2063:
2062:
2060:
2056:
2048:
2047:
2042:
2038:
2037:
2032:
2031:
2029:
2025:
2021:
2014:
2009:
2007:
2002:
2000:
1995:
1994:
1991:
1985:
1982:
1980:
1977:
1975:
1972:
1970:
1967:
1965:
1962:
1960:
1957:
1956:
1952:
1946:
1940:
1936:
1931:
1928:
1924:
1920:
1916:
1912:
1907:
1904:
1900:
1896:
1892:
1887:
1884:
1882:1-85788-331-4
1878:
1874:
1869:
1866:
1862:
1858:
1854:
1849:
1846:
1842:
1838:
1834:
1829:
1828:
1824:
1815:
1811:
1806:
1801:
1797:
1793:
1789:
1785:
1781:
1777:
1773:
1766:
1764:
1760:
1755:
1751:
1746:
1741:
1737:
1733:
1729:
1725:
1721:
1717:
1713:
1706:
1703:
1690:
1686:
1679:
1676:
1671:
1667:
1663:
1656:
1653:
1649:
1647:0-262-55025-3
1643:
1639:
1635:
1634:
1626:
1623:
1617:
1614:
1608:
1605:
1601:
1596:
1593:
1580:
1573:
1567:
1564:
1559:
1558:
1550:
1547:
1543:
1539:
1533:
1530:
1525:
1524:
1516:
1513:
1508:
1501:
1499:
1495:
1490:
1486:
1482:
1478:
1473:
1465:
1462:
1458:
1454:
1449:
1446:
1442:
1436:
1432:
1428:
1424:
1416:
1413:
1403:
1402:
1395:
1392:
1384:
1377:
1370:
1367:
1362:
1355:
1352:
1339:
1335:
1329:
1326:
1323:
1319:
1313:
1310:
1305:
1304:
1299:
1298:Taleb, Nassim
1293:
1290:
1286:
1284:0-387-94791-4
1280:
1276:
1272:
1266:
1263:
1259:
1252:
1245:
1242:
1230:
1226:
1220:
1217:
1213:
1207:
1203:
1199:
1193:
1191:
1187:
1176:
1172:
1165:
1162:
1150:
1146:
1142:
1138:
1134:
1130:
1125:
1120:
1116:
1112:
1105:
1098:
1096:
1092:
1089:
1086:
1081:
1074:
1071:
1066:
1062:
1058:
1054:
1053:Technometrics
1047:
1045:
1041:
1028:
1024:
1023:
1018:
1011:
1009:
1005:
998:
993:
990:
987:
984:
981:
978:
975:
972:
971:
967:
965:
963:
959:
955:
950:
947:In 2009, the
942:
940:
937:
933:
930:model called
929:
925:
924:Robert Axtell
921:
916:
912:
908:
904:
900:
897:
893:
889:
885:
881:
873:
871:
867:
864:
857:
855:
853:
848:
844:
840:
832:
830:
828:
827:
822:
818:
814:
810:
806:
802:
797:
795:
791:
781:
778:
777:
773:
770:
769:
765:
762:
761:
757:
754:
753:
749:
746:
745:
737:
731:
729:
725:
720:
718:
710:
705:
700:
697:
693:
689:
686:
682:
678:
675:
671:
667:
664:
661:
658:
657:
656:
653:
650:
647:
642:
641:for example.
640:
636:
630:
622:
615:
598:
593:
589:
586:
583:
577:
573:
569:
564:
560:
557:
554:
548:
544:
541:
538:
535:
528:
527:
506:
503:
500:
497:
489:
481:
478:
475:
472:
464:
461:
458:
455:
448:
447:
446:
444:
440:
436:
432:
428:
424:
420:
416:
408:
406:
403:
399:
395:
389:
383:
379:
376:
372:
360:
357:
349:
339:
335:
331:
325:
324:
319:This section
317:
308:
307:
301:
299:
297:
289:
287:
285:
281:
277:
273:
269:
264:
262:
258:
254:
250:
246:
243:
239:
235:
232:
227:
225:
221:
217:
213:
204:
194:
191:
176:
166:
162:
156:
153:This article
151:
142:
141:
132:
129:
121:
111:
107:
103:
97:
96:
91:This article
89:
80:
79:
74:
72:
65:
64:
59:
58:
53:
48:
39:
38:
33:
19:
2086:
2044:
2034:
1934:
1918:
1914:
1897:(1): 15–19,
1894:
1890:
1872:
1856:
1852:
1836:
1832:
1779:
1775:
1719:
1715:
1705:
1693:. Retrieved
1688:
1678:
1670:the original
1665:
1655:
1632:
1625:
1616:
1607:
1595:
1583:. Retrieved
1578:
1566:
1556:
1549:
1532:
1526:, ChannelWeb
1522:
1515:
1506:
1476:
1464:
1456:
1448:
1422:
1415:
1405:, retrieved
1400:
1394:
1383:the original
1369:
1360:
1354:
1342:. Retrieved
1338:the original
1328:
1321:
1312:
1302:
1292:
1274:
1265:
1257:
1244:
1233:. Retrieved
1231:. 2019-03-12
1228:
1219:
1201:
1198:
1178:. Retrieved
1175:Entrepreneur
1174:
1164:
1152:. Retrieved
1114:
1110:
1079:
1073:
1059:(1): 11–18.
1056:
1052:
1031:. Retrieved
1027:the original
1020:
946:
917:
913:
909:
905:
901:
892:ABC-analysis
880:Pareto chart
877:
868:
861:
843:optimization
836:
824:
816:
809:Daniel Gross
803:, economist
800:
798:
787:
779:Poorest 20%
747:Richest 20%
721:
714:
706:Applications
695:
691:
684:
680:
673:
669:
654:
651:
643:
631:
627:
443:Hoover index
438:
426:
422:
418:
414:
412:
390:
381:
377:
375:Pareto index
367:
352:
343:
320:
293:
265:
252:
228:
223:
219:
215:
211:
209:
186:
170:
159:Please help
154:
124:
115:
92:
68:
61:
55:
54:Please help
51:
926:created an
805:Tyler Cowen
771:Fourth 20%
755:Second 20%
413:Using the "
238:sociologist
173:August 2022
118:August 2022
2121:Categories
2073:Ophelimity
1585:14 January
1407:2007-07-08
1344:12 January
1235:2021-02-27
1180:2018-01-05
1033:25 January
999:References
932:Sugarscape
763:Third 20%
728:Gini index
435:Gini index
398:bush fires
330:improve it
216:80/20 rule
163:by adding
102:improve it
57:improve it
1638:MIT Press
1485:0362-4331
1149:202719165
980:10/90 gap
958:epidemics
934:, from a
896:logistics
888:Six Sigma
847:Microsoft
833:Computing
711:Economics
587:−
501:−
479:−
433:like the
394:power law
373:. If the
334:verifying
268:power law
242:economist
229:In 1941,
106:verifying
63:talk page
2058:Concepts
1814:16292310
1754:16292292
1695:13 March
1489:Archived
1300:(2007),
1273:(1999),
1271:Bak, Per
1154:10 April
1088:Volume 2
1085:Volume 1
968:See also
616:Analysis
346:May 2020
222:and the
2142:Quality
1805:7094981
1784:Bibcode
1745:7095140
1724:Bibcode
1129:Bibcode
974:1% rule
758:11.75%
750:82.70%
742:Income
328:Please
290:History
284:clients
100:Please
2127:Adages
2049:(1916)
2039:(1900)
1941:
1879:
1812:
1802:
1776:Nature
1752:
1742:
1716:Nature
1644:
1540:
1483:
1437:
1281:
1208:
1147:
852:COCOMO
782:1.40%
774:1.85%
766:2.30%
218:, the
2027:Books
1575:(PDF)
1386:(PDF)
1379:(PDF)
1254:(PDF)
1229:Juran
1145:S2CID
1119:arXiv
1107:(PDF)
687:-axis
676:-axis
429:= 1,
384:= log
276:adage
1939:ISBN
1877:ISBN
1810:PMID
1750:PMID
1697:2019
1642:ISBN
1587:2012
1538:ISBN
1481:ISSN
1435:ISBN
1346:2012
1279:ISBN
1206:ISBN
1156:2011
1035:2018
922:and
886:and
637:and
441:the
437:(G)
240:and
210:The
1923:doi
1899:doi
1861:doi
1841:doi
1800:PMC
1792:doi
1780:438
1740:PMC
1732:doi
1720:438
1427:doi
1137:doi
1061:doi
837:In
799:In
439:and
332:by
286:."
278:of
104:by
2123::
1917:,
1913:,
1895:74
1893:,
1857:90
1855:,
1837:41
1835:,
1808:.
1798:.
1790:.
1778:.
1774:.
1762:^
1748:.
1738:.
1730:.
1718:.
1714:.
1687:.
1664:.
1636:,
1577:.
1497:^
1487:.
1479:.
1475:.
1455:,
1433:,
1320:,
1256:,
1227:.
1189:^
1173:.
1143:.
1135:.
1127:.
1115:46
1113:.
1109:.
1094:^
1057:28
1055:.
1043:^
1019:.
1007:^
964:.
425:+
263:.
66:.
2012:e
2005:t
1998:v
1948:.
1925::
1919:8
1901::
1863::
1843::
1816:.
1794::
1786::
1756:.
1734::
1726::
1699:.
1589:.
1544:.
1429::
1348:.
1238:.
1183:.
1158:.
1139::
1131::
1121::
1067:.
1063::
1037:.
696:x
692:y
685:y
681:x
674:y
670:x
599:)
594:2
590:H
584:1
578:(
574::
570:)
565:2
561:H
558:+
555:1
549:(
545:=
542:B
539::
536:A
511:|
507:B
504:2
498:1
494:|
490:=
486:|
482:1
476:A
473:2
469:|
465:=
462:G
459:=
456:H
427:B
423:A
419:B
417::
415:A
392:"
386:4
382:α
378:α
359:)
353:(
348:)
344:(
326:.
193:)
187:(
175:)
171:(
167:.
157:.
131:)
125:(
120:)
116:(
98:.
73:)
69:(
34:.
20:)
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