Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that MCA maintains its standards for the high quality of its published papers. Thanks to the cooperation of our reviewers, in 2020, the median time to first decision was 18 days and the median time to publication was 41 days. The editors would like to express their sincere gratitude to the following reviewers for their precious time and dedication, regardless of whether the papers were finally published:
| Afsar, Hasan Murat | Li, Zhaochao |
| Agahei Pour, Pouya | Liao, Qifeng |
| Albornoz, Victor | Linders, Daniël |
| Allende, Gemayqzel Bouza | Liu, Haiyan |
| Alshareef, Ahmed | Liu, Wenjun |
| Alves De Sousa, Ricardo J. | Loja, Amélia |
| Andrade, César | Lolas, Georgios |
| Anzt, Hartwig | Loy, Nadia |
| Arle, Jens | Lyons, Eric |
| Arndt, Daniel | Macias-Diaz, Jorge E. |
| Atukeren, Erdal | Makinde, Oluwole D. |
| Avram, Anca | Malinzi, Joseph |
| Azamathulla, Hazi M. | Mao, Qibo |
| Azar, Ahmad Taher | Martins, Ricardo |
| Baležentis, Tomas | Mashtakov, Aleksei Pavlovich |
| Barnard, Rick | Melgar Dominguez, Ozy Daniel |
| Barrio, Roberto | Metzler, Dirk |
| Baspinar, Emre | Mewomo, Oluwatosin T. |
| Begzjav, Tuguldur Kh | Michaels, Jay |
| Bellinger, Colin | Mihailescu, Marius Iulian |
| Bernardes, Gilberto | Mihet-Popa, Lucian |
| Bertotti, Maria Letizia | Miklosevic, Kresimir |
| Bhetwal, Bhupal P. | Mneimneh, Saad |
| Bissoli, Dayan C. | Moghaddam, Hesam S. |
| Bitsouni, Vasiliki | Monteiro, Rodrigo Nunes |
| Boon, Marko | Mordeson, John N. |
| Briozzo, Adriana C. | Moreles, Miguel |
| Brito, Alisson | Morovati, Vahid |
| Budday, Silvia | Mosavi, Amir |
| Butler, Steve | Muntean, Sebastian |
| Butusov, Denis | Nakamura, Gilberto Medeiros |
| Cao, Zhixing | Nallim, Liz G. |
| Caraffini, Fabio | Nebro, Antonio |
| Castelli-Dezza, Francesco | Nguyen, Moon |
| Chandar, Dominic | Novoa, Pavel |
| Chen, Lejun | Olejnik, Paweł |
| Chen, Yanping | Ouakad, Hassen |
| Cheng, Mingmian | Ouamara, Daoud |
| Chovanec, Peter | Padulano, Roberta |
| Chu, Shu-Chuan | Palomar, Marta |
| Citti, Giovanna | Pazanin, Igor |
| Corcoran, Padraig | Peitz, Sebastian |
| Correia, José A.F.O. | Perpiñan, Gilberto |
| Costanzo, Carmelina | Petrescu, Catalin |
| Cremonesi, Massimiliano | Pilyugin, Sergei S. |
| Dąbrowska, Jolanta | Pintea, Camelia-M. |
| De La Sen, Manuel | Pitea, Ariana |
| Delestre, Olivier | Pogány, Tibor |
| Dell’Accio, Francesco | Pop, Nicolae |
| Di Noia, Luigi Pio | Preis, Robert |
| Ding, Yiliang | Przanowski, Maciej |
| Djenouri, Youcef | Ptak, Mariusz |
| Do, Quang Hung | Rabinovici, Raul |
| Dochin, Kostadin | Radac, Mircea-Bogdan |
| Dokos, Socrates | Ramos, Pedro |
| Dolgopolik, Maksim | Ramzanpour, Mohammadreza |
| Domanski, Pawel D. | Rassõlkin, Anton |
| Dong, Qiaoli | Riel, Bryan |
| Dong, Xiaoliang | Ripoll, Jordi |
| Dreesen, Philippe | Rivadeneira, Pablo S. |
| Du, Jingtao | Rivas-Perez, Raul |
| Dudin, Alexander | Rivera, Gilberto |
| Duran, Ugur | Rizvi, Mustafa |
| Ebtehaj, Isa | Roberts, Justo José |
| Eleuch, Hichem | Salloum, Salman |
| Elishakoff, Isaac | Salman, Azzam S. |
| Ellahi, Rehmat | Salva, Natalia Nieves |
| Elnaqeeb, Thanaa | Schiecke, Karin |
| Engler, Hans | Shin, Dong Yun |
| Esteva, Maria | Silva, Luiz Eduardo Virgilio Da |
| Evsukoff, Alexandre G. | Singh, Parnav |
| Farrokhifar, Meisam | Smetanová, Dana |
| Feng, Jian | Stel, Henrique |
| Feng, Libo | Stoklasa, Jan |
| Ferrara, Massimiliano | Sun, HongGuang |
| Firat, Murat | Sun, Jianqiao |
| Fontanella, Chiara Giulia | Sun, Peng |
| Fu, Zhuojia | Sysoev, Oleg |
| Fujiwara, Naoya | Szcześniak, Paweł |
| Gandzha, Segey | Tchemisova, Tatiana |
| García, Vicente | Tian, Jianjun (Paul) |
| García-Gil, Diego | Tiels, Koen |
| Gavrilas, Mihai | Tikadar, Amitav |
| Ghisi, Daniele | Tlelo-Cuautle, Esteban |
| Ghosh, Subir | Toma, Milan |
| Gołdyn, Ryszard | Tornatore, Luca |
| Golub, Mikhail V. | Treesatayapun, Chidentree |
| Gomes, Álvaro | Troja, Erald |
| Gonzalez, Xavier | Tse, Daniel W. K. |
| Gonzalez-Parra, Gilberto | Tuegeh, Maickel |
| Gottman, John | Turinici, Mihai |
| Goyal, Ashish | Turkyilmazoglu, Mustafa |
| Guardone, Alberto | Van Roon, Arie M. |
| Guisande, Cástor | Varsakelis, Christos |
| Guo, Peng | Vázquez Polo, Francisco José |
| Hadad, Yossi | Venkatraman, Sitalakshmi |
| Haffner, Oto | Verma, Rajkumar |
| Haga, Taiki | Villa, Andrea |
| Hajij, Mustafa | Villanueva, Rafael Jacinto |
| Hammami, Farouk | Vitkova, Lidia Andreevna |
| Han, Yuyan | Wang, Chao |
| Helske, Jouni | Wang, Endong |
| Horák, Jakub | Wang, Handing |
| Hou, Zhichao | Wang, Jing |
| Huang, Xuzhen | Wang, Lihua |
| Ivanov, Ovidiu | Wang, Shijin |
| Jawab, Fouad | Wang, Tsung-Hsien |
| Jelovica, Jasmin | Wei, Yanqiao |
| Jia, Yuane | Wen, Conghua |
| Jiang, Haochuan | Wilhelm, Johannes |
| Jiang, Yuanying | Wolf, Marek |
| Jin, Heng | Wolkenhauer, Olaf |
| Jing, Rui | Wu, Zezhou |
| Johnson, Paul | Wulff, Dirk U. |
| Jones, Hazael | Xiong, Furui |
| Jung, SungKi | Xu, Jun |
| Kabir, Golam | Xu, Zhenli |
| Kadapa, Chennakesava | Yamagishi, Masao |
| Kadeethum, Teeratorn | Yang, Lei |
| Kalantzis, Vassilis | Yee, Kwanjung |
| Kannan, P. K. | Young, Derek |
| Kashaninejad, Navid | Young, Philippe |
| Khan, Abdul Samad | Yousefian, Farzad |
| Khan, Waseem A. | Yu, Yuncai |
| Khemchandani, Sunil L. | Zappalà, Giuseppe |
| Khosroshahi, Siamak Farajzadeh | Zeng, Fanhai |
| Kijewska, Kinga | Zeng, Shouzhen |
| Kik, Tomasz | Zgurovsky, Michael Z. |
| Kilby, Philip | Zhang, Jiazhong |
| Kim, Geonwoo | Zhang, Rui |
| Kimiaei, Morteza | Zhang, Yufei |
| Kovács, Róbert | Zhao, Wei |
| Kozyakin, Victor | Zhao, Yanwei |
| Kronbichler, Martin | Zheng, Hui |
| Lacerda, Márcio Júnior | Zhou, Shenglong |
| Lagrée, Pierre-Yves | Zhu, Weiqiang |
| Lawnik, Marcin | Zhuang, Chijie |
| Leccadito, Arturo | Ziemba, Paweł |
| Lee, Jeong-Hun | Żur, Krzysztof Kamil |
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