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Armin Mertens

Dr. Armin Mertens

Head of Big Data Analytics Research Unit

Tel: +49 221 4981-747
  • Since 2019 at the IW
  • PhD in Political Economy and Computational Social Science at the Cologne Graduate School in Management, Economics and Social Sciences, University of Cologne
  • Studies in political science, economic geography and economics at the University of Cologne, University of Düsseldorf and University of Prague
  • Main research interests: Natural Language Processing (NLP), Machine Learning, Statistics/Econometrics, Data Visualization.

Research groups

Big Data Analytics

IW Publications

Büchel, Jan / Mertens, Armin, 2023, Wofür Unternehmen ChatGPT einsetzen, IW-Kurzbericht, Nr. 31, Köln
Zur Studie

External Publications

Eger, Thomas/ Mertens, Armin/ Scheufen, Marc, 2021, Publication Cultures and the Citation Impact of Open Access, in: Managerial and Decision Economics, early view
Zur Studie

Regulating the audit market in the European Union: who dominates, who loses?
Journal of European Public Policy, Volume 26, Issue 12, 2019, pp. 1818-1835.

(in cooperation with Christine Trampusch, Florian Fastenrath and Rebecca Wangemann)
The political economy of local government financialization and the role of policy diffusion
Regulation & Governance, 2019, online first: https://onlinelibrary.wiley.com/doi/abs/10.1111/rego.12285

(in cooperation with Franziska Pradel, Ayjeren Rozyjumayeva and Jens Wäckerle)
As the tweet, so the reply? Gender bias in digital communication with politicians
Proceedings oft he 11th ACM Conference on Web Science (WebSci’19), June 30-July 3, 2019, Boston, MA, USA, pp. 193-201.

(in cooperation with Georg Wilke, Clemens Schneider, Jennifer Drach, Philipp Hillebrand and Sven Neumann)
Modellprojekt E-Carflex Business – Begleitforschung
Schlussbericht, Wuppertal Institut für Klima, Umwelt, Energie, 2017.

More from Dr. Armin Mertens

Read study
How companies use ChatGPT
IW-Kurzbericht No. 32 13. May 2023

How companies use ChatGPT

Jan Büchel / Armin Mertens

ChatGPT is currently very popular. The AI can answer questions in seconds, summarize entire texts or create programming code. On the one hand, there are many advantages for the economy and society, on the other hand, experts warn of dangers and call for regulation. It is therefore interesting to see whether and for what purposes companies are already using ChatGPT.


Read study
External Publication
Publication cultures and the citation impact of open access
External Publication 1. September 2021

Publication cultures and the citation impact of open access

Thomas Eger / Armin Mertens / Marc Scheufen

With the advent of electronic publishing and the Internet, the traditional business model of academic publishing, based on subscription fees paid by the readers/libraries (closed access [CA] journals), has to some extent been replaced and to some extent complemented by different types of open access (OA).


Read study
Open Data and Data Sharing
IW-Policy Paper No. 21 13. October 2020

An Economic Analysis: Open Data and Data Sharing

Alevtina Krotova / Armin Mertens / Marc Scheufen

Data is an important business resource. It forms the basis for various digital technologies such as artificial intelligence or smart services. However, access to data is unequally distributed in the market. Hence, some business ideas fail due to a lack of data sources.


Read study
Online Petitions as an Indicator of Current Polarization Tendencies
IW-Report No. 47 14. September 2020

Online Petitions as an Indicator of Current Polarization Tendencies

Armin Mertens / Ruth Maria Schüler

The COVID-19 measures of the federal and state governments have at times massively affected public life in Germany. The ban on contact has temporarily restricted the freedom to pursue a profession, the freedom of trade, compulsory education and religious freedom.


Read study
The Corona Innovation Race in Science
IW-Report No. 17 5. May 2020

The Corona Innovation Race in Science

Jasmina Kirchhoff / Armin Mertens / Marc Scheufen

This report is an analysis of the scientific publications on the fight against the corona pandemic and its significance for Germany as a pharmaceutical location.


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