Adverse selection

Adverse selection - selective trading based on possession of hidden information. Article “Adverse selection” in English Wikipedia has 52.9 points for quality (as of July 1, 2026). The article contains 46 references and 18 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 2.78 points.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

Since the creation of article “Adverse selection”, its content was written by 137 registered users of English Wikipedia and edited by 521 registered Wikipedia users in all languages.

The article is cited 271 times in English Wikipedia and cited 672 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #14790 in March 2005
• Global: #18869 in November 2004

The highest popularity rank from 2008:

• Local (English): #30554 in December 2014
• Global: #39804 in December 2014

There are 22 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Adverse selection		52.9001
2	Japanese (ja) 逆選抜		31.9072
3	Korean (ko) 역선택		20.9769
4	German (de) Adverse Selektion		20.5635
5	Persian (fa) کژگزینی		18.6577
6	Chinese (zh) 逆向选择		15.7102
7	Polish (pl) Negatywna selekcja		10.6038
8	Swedish (sv) Snedvridet urval		10.5927
9	Danish (da) Ugunstig udvælgelse		10.1323
10	Spanish (es) Selección adversa		10.1078

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Adverse selection" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Adverse selection		2 516 494
2	German (de) Adverse Selektion		674 713
3	French (fr) Sélection adverse		354 774
4	Japanese (ja) 逆選抜		346 639
5	Spanish (es) Selección adversa		276 258
6	Chinese (zh) 逆向选择		208 118
7	Italian (it) Selezione avversa		202 109
8	Polish (pl) Negatywna selekcja		102 840
9	Portuguese (pt) Seleção adversa		77 677
10	Russian (ru) Неблагоприятный отбор		69 508

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Adverse selection" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Adverse selection		2 608
2	Japanese (ja) 逆選抜		421
3	Chinese (zh) 逆向选择		391
4	French (fr) Sélection adverse		364
5	German (de) Adverse Selektion		350
6	Korean (ko) 역선택		120
7	Spanish (es) Selección adversa		119
8	Russian (ru) Неблагоприятный отбор		113
9	Italian (it) Selezione avversa		94
10	Polish (pl) Negatywna selekcja		79

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Adverse selection" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Adverse selection		137
2	German (de) Adverse Selektion		84
3	French (fr) Sélection adverse		38
4	Italian (it) Selezione avversa		34
5	Japanese (ja) 逆選抜		28
6	Dutch (nl) Adverse selectie		28
7	Russian (ru) Неблагоприятный отбор		23
8	Chinese (zh) 逆向选择		17
9	Vietnamese (vi) Lựa chọn trái ý		16
10	Spanish (es) Selección adversa		15

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Adverse selection" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) الاختيار السالب		0
2	Catalan (ca) Selecció adversa		0
3	Danish (da) Ugunstig udvælgelse		0
4	German (de) Adverse Selektion		0
5	English (en) Adverse selection		0
6	Spanish (es) Selección adversa		0
7	Persian (fa) کژگزینی		0
8	Finnish (fi) Haitallinen valikoituminen		0
9	French (fr) Sélection adverse		0
10	Indonesian (id) Seleksi yang merugikan		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Adverse selection" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Adverse selection		271
2	Japanese (ja) 逆選抜		140
3	German (de) Adverse Selektion		51
4	Portuguese (pt) Seleção adversa		29
5	French (fr) Sélection adverse		28
6	Chinese (zh) 逆向选择		28
7	Spanish (es) Selección adversa		20
8	Italian (it) Selezione avversa		14
9	Persian (fa) کژگزینی		13
10	Korean (ko) 역선택		11

More...

#	Language	Value
ar	Arabic الاختيار السالب
ca	Catalan Selecció adversa
da	Danish Ugunstig udvælgelse
de	German Adverse Selektion
en	English Adverse selection
es	Spanish Selección adversa
fa	Persian کژگزینی
fi	Finnish Haitallinen valikoituminen
fr	French Sélection adverse
id	Indonesian Seleksi yang merugikan
it	Italian Selezione avversa
ja	Japanese 逆選抜
ko	Korean 역선택
nl	Dutch Adverse selectie
pl	Polish Negatywna selekcja
pt	Portuguese Seleção adversa
ru	Russian Неблагоприятный отбор
sv	Swedish Snedvridet urval
tr	Turkish Ters seçim
uz	Uzbek Noqulay tanlov
vi	Vietnamese Lựa chọn trái ý
zh	Chinese 逆向选择

Best Rank

English: #30554 12.2014

Global: #39804 12.2014

Best Rank

English: #14790 03.2005

Global: #18869 11.2004

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information