Personen - MADOC

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Anzahl der Einträge: 21.

2022

Laitenberger, Ulrich ; Viete, Steffen ; Slivko, Olga ; Kummer, Michael E. ; Borchert, Kathrin ; Hirth, Matthias (2022) Unemployment and online labor : evidence from microtasking.

ZEW Discussion Papers Mannheim 18-023 [Arbeitspapier]

2021

Chen, Xiaomeng ; Forman, Chris ; Kummer, Michael E. (2021) Chat more and contribute better: An empirical study of a knowledge-sharing community.

ZEW Discussion Papers Mannheim 21-061 [Arbeitspapier]

Kummer, Michael E. ; Laitenberger, Ulrich ; Rich, Cyrus E. ; Hughes, Danny R. ; Ayer, Turgay (2021) Healthy reviews! Online physician ratings reduce healthcare interruptions.

ZEW Discussion Papers Mannheim 21-075 [Arbeitspapier]

2019

Hinnosaar, Marit ; Hinnosaar, Toomas ; Kummer, Michael E. ; Slivko, Olga (2019) Externalities in knowledge production: evidence from a randomized field experiment.

ZEW Discussion Papers Mannheim 19-007 [Arbeitspapier]

Vorschau

Kesler, Reinhold ; Kummer, Michael E. ; Schulte, Patrick (2019) Competition and privacy in online markets: Evidence from the mobile app industry.

ZEW Discussion Papers Mannheim 19-064 [Arbeitspapier]

Vorschau

2018

Borchert, Kathrin ; Hirth, Matthias ; Kummer, Michael E. ; Laitenberger, Ulrich ; Slivko, Olga ; Viete, Steffen (2018) Unemployment and online labor.

ZEW Discussion Papers Mannheim 18-023 [Arbeitspapier]

Vorschau

2017

Kesler, Reinhold ; Kummer, Michael E. ; Schulte, Patrick (2017) Mobile applications and access to private data : the supply side of the Android ecosystem.

ZEW Discussion Papers Mannheim 17-075 [Arbeitspapier]

Vorschau

2016

Kummer, Michael E. ; Schulte, Patrick (2016) When private information settles the bill : money and privacy in Google's market for smartphone applications.

ZEW Discussion Papers Mannheim 16-031 [Arbeitspapier]

Vorschau

Breunig, Christoph ; Kummer, Michael E. ; Ohnemus, Jörg ; Viete, Steffen (2016) IT outsourcing and firm productivity : eliminating bias from selective missingness in the dependent variable.

ZEW Discussion Papers Mannheim 16-092 [Arbeitspapier]

Vorschau

2015

Kummer, Michael E. ; Slivko, Olga ; Zhang, Xiaoquan (Michael) (2015) Economic downturn and volunteering: do economic crises affect content generation on Wikipedia?

ZEW Discussion Papers Mannheim 15-078 [Arbeitspapier]

Vorschau

Hinnosaar, Marit ; Hinnosaar, Toomas ; Kummer, Michael E. ; Slivko, Olga (2015) Does Wikipedia matter? : the effect of Wikipedia on tourist choices.

ZEW Discussion Papers Mannheim 15-089 [Arbeitspapier]

Vorschau

2014

Kummer, Michael E. (2014) ICT, search behavior and market outcomes.

Mannheim [Dissertation]

Vorschau

Kummer, Michael E. ; Schulte, Patrick (2014) Money and privacy : Android market evidence.

ZEW Discussion Papers Mannheim 14-131 [Arbeitspapier]

Vorschau

Kummer, Michael E. (2014) Spillovers in networks of user generated content : pseudo-experimental evidence on Wikipedia.

ZEW Discussion Papers Mannheim 14-132 [Arbeitspapier]

Vorschau

Hackl, Franz ; Kummer, Michael E. ; Winter-Ebmer, Rudolf (2014) 99 cent: Price points in e-commerce. Information Economics and Policy : IEP Amsterdam [u.a.] 26 12-27 [Zeitschriftenartikel]

Hackl, Franz ; Kummer, Michael E. ; Winter-Ebmer, Rudolf ; Zulehner, Christine (2014) Market structure and market performance in E-commerce. European Economic Review : EER Amsterdam 68 199-218 [Zeitschriftenartikel]

2013

Kummer, Michael E. (2013) Spillovers in networks of user generated content : evidence from 23 natural experiments on Wikipedia.

ZEW Discussion Papers Mannheim 13-098 [Arbeitspapier]

Vorschau

Hackl, Franz ; Kummer, Michael E. ; Winter-Ebmer, Rudolf ; Zulehner, Christine (2013) Entry, exit, and pricing strategies at online price-comparison sites : do price markups fall by themselves, or is competition crucial?

ZEW policy brief Mannheim 2013-02 [Arbeitspapier]

Vorschau

2012

Kummer, Michael E. ; Saam, Marianne ; Halatchliyski, Iassen ; Giorgidze, George (2012) Centrality and content creation in networks: the case of German Wikipedia.

ZEW Discussion Papers Mannheim 12-053 [Arbeitspapier]