Pekka Hakkarainen

965 total citations
82 papers, 681 citations indexed

About

Pekka Hakkarainen is a scholar working on Epidemiology, Pharmacology and Education. According to data from OpenAlex, Pekka Hakkarainen has authored 82 papers receiving a total of 681 indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Epidemiology, 20 papers in Pharmacology and 17 papers in Education. Recurrent topics in Pekka Hakkarainen's work include Substance Abuse Treatment and Outcomes (25 papers), Cannabis and Cannabinoid Research (20 papers) and HIV, Drug Use, Sexual Risk (19 papers). Pekka Hakkarainen is often cited by papers focused on Substance Abuse Treatment and Outcomes (25 papers), Cannabis and Cannabinoid Research (20 papers) and HIV, Drug Use, Sexual Risk (19 papers). Pekka Hakkarainen collaborates with scholars based in Finland, Australia and United Kingdom. Pekka Hakkarainen's co-authors include Vibeke Asmussen Frank, Tom Decorte, Simon Lenton, Tuukka Tammi, Christoffer Tigerstedt, Karoliina Karjalainen, Gary Potter, Monica J. Barratt, Bernd Werse and Aili Malm and has published in prestigious journals such as Social Science & Medicine, Drug and Alcohol Dependence and Addictive Behaviors.

In The Last Decade

Pekka Hakkarainen

73 papers receiving 615 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Pekka Hakkarainen Finland 15 370 243 159 158 153 82 681
Vibeke Asmussen Frank Denmark 18 353 1.0× 213 0.9× 287 1.8× 314 2.0× 174 1.1× 72 825
Paul J. Turnbull United Kingdom 18 450 1.2× 104 0.4× 207 1.3× 383 2.4× 150 1.0× 46 815
Stephen J. Sifaneck United States 16 447 1.2× 277 1.1× 158 1.0× 215 1.4× 100 0.7× 24 759
Annemieke Benschop Netherlands 13 287 0.8× 223 0.9× 123 0.8× 74 0.5× 156 1.0× 41 565
Miriam W. Boeri United States 14 369 1.0× 121 0.5× 147 0.9× 121 0.8× 119 0.8× 45 604
Hilary James Liberty United States 13 246 0.7× 47 0.2× 140 0.9× 160 1.0× 160 1.0× 21 547
Caroline Salom Australia 17 348 0.9× 71 0.3× 138 0.9× 55 0.3× 227 1.5× 71 757
Vivian Chiu Australia 12 197 0.5× 258 1.1× 118 0.7× 76 0.5× 96 0.6× 31 494
Iva Pejnović Franelić Croatia 8 200 0.5× 92 0.4× 159 1.0× 52 0.3× 134 0.9× 16 506
Katinka van de Ven Australia 17 159 0.4× 77 0.3× 87 0.5× 295 1.9× 205 1.3× 38 695

Countries citing papers authored by Pekka Hakkarainen

Since Specialization
Citations

This map shows the geographic impact of Pekka Hakkarainen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Pekka Hakkarainen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Pekka Hakkarainen more than expected).

Fields of papers citing papers by Pekka Hakkarainen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Pekka Hakkarainen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Pekka Hakkarainen. The network helps show where Pekka Hakkarainen may publish in the future.

Co-authorship network of co-authors of Pekka Hakkarainen

This figure shows the co-authorship network connecting the top 25 collaborators of Pekka Hakkarainen. A scholar is included among the top collaborators of Pekka Hakkarainen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Pekka Hakkarainen. Pekka Hakkarainen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Konttinen, Hanna, et al.. (2025). Exploring the risk matrix of drug overdose deaths of young people: Drug use patterns, individual characteristics, circumstances, and environment. Drug and Alcohol Dependence. 274. 112757–112757. 1 indexed citations
2.
Werse, Bernd, Thomas Friis Søgaard, Chris Wilkins, et al.. (2024). Impact of the COVID-19 pandemic on cannabis cultivation and use in 18 countries. International Journal of Drug Policy. 144(Pt 3). 104652–104652.
3.
Sevigny, Eric L., Gary Potter, Chris Wilkins, et al.. (2023). Conflict and social control among cannabis growers. International Journal of Drug Policy. 144(Pt 3). 104292–104292.
4.
Sznitman, Sharon R., Gary Potter, Pekka Hakkarainen, et al.. (2023). Are cannabis use problems comparable across individuals using for recreational and medical purposes? An international cross-sectional study of individuals who use self-grown cannabis. International Journal of Drug Policy. 144(Pt 3). 104263–104263. 6 indexed citations
5.
Ünlü, Ali, Fatih Demiroz, Tuukka Tammi, & Pekka Hakkarainen. (2021). The Complexity of Drug Consumption Room Policy and Progress in Finland. Contemporary Drug Problems. 48(2). 151–167. 9 indexed citations
6.
Ünlü, Ali, Tuukka Tammi, & Pekka Hakkarainen. (2020). Drug decriminalization policy. Literature review: models, implementation and outcomes.. Työväentutkimus Vuosikirja. 11 indexed citations
7.
Raitasalo, Kirsimarja, et al.. (2020). Smoke in the air – Associations between experimentation with cannabis and the use of tobacco and nicotine products among 15–16-year-old school students. Addictive Behaviors. 114. 106714–106714. 4 indexed citations
8.
Törrönen, Jukka, et al.. (2019). Combining Alcohol with Benzodiazepines or Psychostimulants. Metaphoric Meanings and the Concept of Control in the Online Talk of Polydrug Use. Journal of Psychoactive Drugs. 51(5). 473–481. 4 indexed citations
9.
Hakkarainen, Pekka, Tom Decorte, Sharon R. Sznitman, et al.. (2019). Examining the blurred boundaries between medical and recreational cannabis - results from an international study of small-scale cannabis cultivators. Figshare. 5 indexed citations
10.
Hakkarainen, Pekka, et al.. (2018). Päihteiden sekakäytön sosiaaliset representaatiot Helsingin Sanomissa 1990-2016. Työväentutkimus Vuosikirja. 83(4). 387–398. 1 indexed citations
11.
Wilkins, Chris, Sharon R. Sznitman, Tom Decorte, Pekka Hakkarainen, & Simon Lenton. (2018). Characteristics of cannabis cultivation in New Zealand and Israel. Drugs and Alcohol Today. 18(2). 90–98. 8 indexed citations
12.
Hakkarainen, Pekka, Tom Decorte, Sharon R. Sznitman, et al.. (2017). Examining the blurred boundaries between medical and recreational cannabis – results from an international study of small-scale cannabis cultivators. Drugs Education Prevention and Policy. 26(3). 250–258. 18 indexed citations
13.
Karjalainen, Karoliina, et al.. (2017). Measuring Concurrent Polydrug Use in General Populations: A Critical Assessment. European Addiction Research. 23(3). 163–169. 19 indexed citations
14.
Hakkarainen, Pekka, et al.. (2015). School’s in! Predicting teen cannabis use by conventionality, cultural disposition and social context. Drugs Education Prevention and Policy. 22(4). 344–351. 4 indexed citations
15.
Potter, Gary, Monica J. Barratt, Aili Malm, et al.. (2014). Global patterns of domestic cannabis cultivation: Sample characteristics and patterns of growing across eleven countries. International Journal of Drug Policy. 26(3). 226–237. 49 indexed citations
16.
Winter, Torsten, et al.. (2012). Suomalaisten huumeiden käyttö ja huumeasenteet : Huumeaiheiset väestökyselyt Suomessa 1992-2010. STM:n Hallinnonalan avoin julkaisuarkisto (Julkari). 1 indexed citations
17.
Vuori, Erkki, et al.. (2010). Suomalainen huumekuolema 2007. 1 indexed citations
18.
Hakkarainen, Pekka, et al.. (2004). Amfetamiinien ja opiaattien ongelmakäytön yleisyys Suomessa 2002. STM:n Hallinnonalan avoin julkaisuarkisto (Julkari). 72. 553–561. 8 indexed citations
19.
Calafat, Amador, et al.. (2001). Risk and Control in the Recreational Drug Culture. STM:n Hallinnonalan avoin julkaisuarkisto (Julkari). 37 indexed citations
20.
Hakkarainen, Pekka. (1996). Use of Cannabis and Attitudes towards Cannabis in the Nordic Countries. 13(1_suppl). 51–58. 8 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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