Inhalt des Dokuments
- © TDS
Welcome to the research
group Trust in Digital Services at TU Berlin. The research group is
headed by Prof. Dr. Timm Teubner. It was founded in April 2018 and is
part of the Einstein Center Digital Future.
Crowdfunding: Guest talk by Robert Kunz
- © Robert Kunz
After his studies of Entrepreneurship and
Innovation at the University of Potsdam, our guest speaker Robert Kunz
worked for several years for the Berlin-based crowdfunding platform,
Companisto . Most recently, as Head of Investment, he was
responsible for the selection of capital-seeking start-ups. In his
talk he tells our students of the Platform Economics course about the
functioning and obstacles of crowdfunding.
- © TDS
After successful editions in Utrecht, Paris,
Southampton, Lund, and Mannheim, the 6th International Workshop on the
Sharing Economy (IWSE ) was held in Utrecht once again. Over 110
participants from 23 countries joined this year’s conference to
exchange their research and insights on the sharing economy. Prof.
Teubner shared his thoughts on “Platforms, Trust, and what may
come” as a keynote address within the university’s venerable
EyeEm: Guest talk by Gen Sadakane
- © Gen
Despite, or maybe thanks
to, his successful career in renowned marketing agencies, Gen Sadakane
co-founded the photo platform EyeEm  eight years ago together with
three of his friends, which matches companies with top-class amateur
photographers; in his function as Creative Director he tells our
students about the history and evolution of the platform business
Research Exchange at WU Wien
- © TDS
Vienna is always worth a visit! We followed Prof.
Ben Greiner's  invitation for a research visit in early June,
exchanging thoughts about the use of user profile photos and avatars
in electronic commerce and online platforms.
WI 2020 in
- © TDS
WI2020 offers a forum for the exchange
between science and practice and contributes to the development of
solutions for the age of digitization. We are happy to announce that,
jointly with Prof. Dr. Manuel Trenz and Dr. Marc T. P. Adam, we will
chair a track on Platforms and the Sharing Economy within
- © TDS
The sharing economy faces an image problem: When
values such as cooperation and sustainability are claimed by
profit-oriented platforms, consumers get confused and lose faith in
the platforms' integrity. With our work on the phenomenon of
sharewashing , we were the first to have documented this effect
empirically. For further information, feel free to listen into (our
co-author) Christof's interview with Deutschlandfunk
Expert Commission appointed
April 5th, 2019
Dr. Franziska Giffey (federal minister for family affairs) has
appointed the expert commission for the Third Equality Report. The
commission will deal with questions of how digitization may help to
promote equal opportunities across demographic features. More
Science with a view
April 4th, 2019
The hard work eventually paid off for the winning groups of this
semester's Data Science Toolbox  lecture. Supporting the course's
case study along the semester, Accenture was kind enough to invite our
students to SOLAR bar to meet and talk casually over classy
We are happy to announce that our catchword paper on
Reputation Transfer has appeared in Business &
Information Systems Engineering (BISE). Today, users manage
reputation on an increasing number of platforms which introduces at
least two challenges. First, the platforms operate as silos, creating
friction and inefficiency. Second, due to the existence of network
effects, there exists a natural tendency for few platforms to grow
large, acquire overwhelming market power, and hence to impede
competition. Notwithstanding challenges relating to data ownership,
reputation transfer may be an important factor to meet both
the Sharing Economy
We are happy to announce that our paper on Privacy in the
Sharing Economy has appeared in the Journal of the Association
for Information Systems.
We explore how marketing personal
resources online is inherently associated with the disclosure of
personal and sometimes intimate information. This raises unprecedented
questions of privacy. Yet, there is so far little research on the role
of privacy considerations in the sharing economy. We investigate how
privacy concerns and economic prospects shape a potential provider's
intentions to share via different communication channels and relate
privacy concerns back to the provider's perceptions of the
For the interim evaluation of our cross-university Einstein
Center Digital Future (ECDF), a renowned board of international
scientists followed Einstein Foundation's invitation to Berlin. Since
its opening in April 2017, until today, 27 reseachers from various
disciplines are working on timely questions of digitization, including
the fields of IT security, intelligent water supply, medical data
processing, or digitalization processes within the work place and
education. The expert panel was particularly impressed by the tangible
interdisciplinary cooperation among ECDF's members. The center is
based on a public-private partnership model, backed by more than 30
industry partners and organizations and hosts reseachers from all of
Berlin's major universities (TU, HU, FU, UdK, Charité, HTW,
the Team, Maik Hesse!
In March, Maik Hesse joined the TDS research team as a Doctoral
Candidate. In his research he will focus on Trust and Reputation in
Digital Platform Ecosystems. Maik has received a diploma in
Mathematics and Business Administration from the University of Cologne
and graduate studies in the United States (California State
"Prior to joining the TDS team, I worked for 4 years as a
consultant for strategy& . I plan to leverage my experience in
digital strategy, transformation, and tech venture building in the
& Information Systems Engineering
March 1st, 2019
Dr. Teubner has joined the editorial board of Business &
Information Systems Engineering (BISE)  in the department
Economics of Information Systems. Being the German-language IS
community's flagship journal for 60 years, BISE has emerged as one of
today’s leading European journals in the field.
Presentation Day (Data Science Toolbox)
Things got serious for students of our Data Science Toolbox 
course on Thursday at ECDF . After weeks of preparation, nine
teams presented their results on the topic of data-driven
decision-making for a better future. The case studies included the
creation of a prototype, drawing on the Boston open data initiative
for supporting business and public leaders in the areas of financial
services, public services, and sustainability.
Accenture Strategy , three outstanding teams were awarded with
all-in invitations for a get-together at Solar Bar & Restaurant
, taking place in April.
"Digital Platforms in E-Commerce"
As part of the weekly lecture series Digital Future , Prof.
Teubner will give a talk on Digital Platforms in Electronic Commerce
(February 5th, 4-6 pm, Room A151).
The lecture series invites
students of all levels to get an understanding of various aspects
connected to the digital transformation. It thus contributes to a more
interdisciplinary education at TUB. There are no participation
Prof. Dr. Thomas Volling (Production and Operations Management)
and Prof. Dr. Timm Teubner (Trust in Digital Services) held their
inaugural lectures at TUB. The event was followed by a cocktail
reception at TU's iconic Geodätenstand.
Talk by Dr. Florian Teschner (HAVAS)
We were happy to host Dr. Florian Teschner as a guest
speaker for our course Data Science Toolbox . In his talk, Dr.
Teschner explored the intricacies of data-based online advertisement.
Since 2017, Dr. Teschner works as head of Data Business Inteligence
(DBi), Havas’ global digital
analytics and marketing technology consultancy.
A growing body of research from various domains has
investigated the platform Airbnb, a two-sided market for peer-based
accommodation sharing. We set out from the idea that it is due time to
take a step back and assess the current state of affairs.
happy to announce that our comprehensive review article  on Airbnb
has eventually appeared, aiming to conflate and synthesize research on
Airbnb. Moreover, a growing online repository  on Airbnb-related
research is now available.
Talk by Prof. Dr. Felix Biessmann (Data Science)
We were very excited to welcome Prof. Dr. Felix
Biessmann for a research talk in the Data Science
Toolbox  course. Prof. Biessmann holds a professorship for Data
Science at Beuth University of Applied Sciences and at the Einstein
Center Digital Future. Being a former PhD candidate at TUB, Prof.
Biessmann talked to our students about Machine Learning Systems in
Production: Data Quality and Interpretability.
the Team, Florence Klement!
Florence Klement joined the TDS research team as a Doctoral
Candidate with a focus on Trust in Crowdinvesting. Florence obtained a
dual master’s degree in Industrial Engineering and Management from
TU Berlin and Toulouse Business School.
"Having worked as Head of Investor Relations at the platform
service provider Companisto  in Berlin-Kreuzberg, I am very
excited to bringing in my expertise in Equity
Special Focus: Privacy
Personal data protection has surged to the center of the policy
debate, leading to the introduction of the EU General Data Protection
Regulation (GDPR). Several BCCP Fellows analyzed the issue of data
privacy from different angles. Have a look what Timm Teubner (TU
Berlin), Christoph M. Flath  (University of Würzburg), and other
scholars have to say about privacy in the sharing economy,
privacy-preserving data analysis, and the price of privacy here
Presentation at ICIS 2018
During this year's International Conference on Information Systems
(ICIS) in San Francisco, Christian Peukert presented one of our recent
research project on the effects of Foreign Live Bio Feedback on human
decision making, particularly when it comes to trust.
Peukert, C., Adam, M. T. P., Hawlitschek, F., Helmig, S., Lux, E.,
Teubner, T. (2018). Knowing me, knowing you: Biosignals and trust
in the surveillance economy. In ICIS 2018 Proceedings, pp.
1–9. online 
Research Talks during the Berlin Science Week
What creates trust in online platforms? What is the economic
value of online reputation? How can reputation be transferred from one
platform to another? These questions were raised by Prof. Dr. Teubner
at the Pairing Research Talks during the Berlin Science Week. The
interdisciplinary format brings together young scientists whose topics
have nothing in common at first glance. more 
Hidden peer-to-peer network
We are happy to announce that our paper  on the hidden
peer-to-peer network structures within accommodation sharing was
accepted at the Journal of Systems and Information
The paper provides first insights into the very
fabric of host-guest interactions on Airbnb from a macroscopic
perspective. We discuss how the platform's network topology may be
leveraged as a resource for trust-building and how platform operators
may use network analyses to gain deeper insights into their user
Platforms Design for Trust
As part of a recent book publication, Prof. Teubner co-authored
a chapter about trust design in the platform economy with Prof.
Greiner (WU Vienna) and Prof. Weinhardt (Karlsruhe Institute of
Technology). The publication is available in German.
Teubner, T., Weinhardt, C. (2018). Grundfragen der
Plattformökonomie – Wie man Vertrauen designt. In:
Plattformen—Geschäftsmodelle und Verträge; Blaurock, U.,
Schmidt-Kessel, M., Erler, K. (eds.), Nomos, pp. 59–76. online
shareBW Landeskongress in Karlsruhe
July 4th, 2018
Digitization represents one of the sharing economy's most
important drivers. About 200 participants discussed questions around
economic sustainability of sharing schemes with experts at the shareBW
Landeskongress, including keynote speeches, panels, and best practice
presentations. Prof. Teubner and Dr. Hawlitschek served as anchormen
for two of the scientific tracks at the congress.
Lecture by Max F. Kunz
July 2nd, 2018
In today’s Platform Economics  lecture, Max
Ferdinand Kunz (Co-founder of InStaff & Jobs GmbH)
held a talk on Job-Matching as a Platform: InStaff &
Jobs, introducing the topic of search engine optimization (SEO)
and search engine advertising (SEA).
June 28th, 2018
More than 50 papers and projects have been presented at the
5th International Workshop on the Sharing Economy (IWSE) in
Mannheim. Along with researchers from 15 countries, Prof. Teubner
talked about our group's recent work on the sharing- and platform
economy. More Information 
Presentation at ECIS 2018
June 23rd, 2018
During this year's European Conference on Information Systems
(ECIS) in Portsmouth (UK), Prof. Teubner presented his research paper
on the dynamics of star rating scores on Airbnb. ECIS 2018
("Beyond Digitization – Facets of Socio-Technical Change")
represents an excellent meeting place for scientists to discuss human
and technical aspects of Information Systems (IS).
Teubner, T., Glaser, F. (2018). Up or out – The
dynamics of star rating scores on Airbnb. In: ECIS 2018
Proceedings, pp. 1-13 online 
Economics of Peer-to-Peer Online Sharing
Which challenges and opportunities are linked to the collaborative
consumption in the sharing economy? This is the question that Prof.
Teubner addresses in his recent book chapter publication.
Teubner, T., Hawlitschek, F. (2018). The economics of
peer-to-peer online sharing. In The Rise of the Sharing
Economy: Exploring the Challenges and Opportunities of Collaborative
Consumption; Pia Albinsson, Yasanthi Perera (eds.). Praeger
Publishing, pp. 129–156. online
Digital Services @TU Berlin
April 1st, 2018
The Einstein Center Digital Future (ECDF) is growing and
diversifying: Just in time for the upcoming summer semester, new
professors have accepted their appointment to ECDF. Prof. Dr. Timm
Teubner heads the Trust in Digital Services group at Faculty
VII (Economics and Management) at TU Berlin. More information