Author Page for Michael E. Kummer

Market Structure and Market Performance in E-Commerce

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Market Structure and Market Performance in E-Commerce

ZEW - Centre for European Economic Research Discussion Paper No. 11-084

Number of pages: 36 Posted: 02 Feb 2012

Franz Hackl, Michael E. Kummer, Rudolf Winter-Ebmer and Christine Zulehner

Johannes Kepler University Linz - Department of Economics, Georgia Institute of Technology, Johannes Kepler University Linz - Department of Economics and University of Vienna - Faculty of Business, Economics, and Statistics

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Market Structure and Market Performance in E-Commerce

CEPR Discussion Paper No. DP9001

Number of pages: 44 Posted: 28 Sep 2012

Franz Hackl, Michael E. Kummer, Rudolf Winter-Ebmer and Christine Zulehner

Johannes Kepler University Linz - Department of Economics, Georgia Institute of Technology, Johannes Kepler University Linz - Department of Economics and University of Vienna - Faculty of Business, Economics, and Statistics

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2.

99 Cent: Price Points in E-Commerce

ZEW - Centre for European Economic Research Discussion Paper No. 10-022

Number of pages: 28 Posted: 10 May 2010

Franz Hackl, Michael E. Kummer and Rudolf Winter-Ebmer

Johannes Kepler University Linz - Department of Economics, Georgia Institute of Technology and Johannes Kepler University Linz - Department of Economics

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3.

Market Entry in E-Commerce

NET Institute Working Paper No. 08-23

Number of pages: 34 Posted: 28 Oct 2008

Maximilian Kasy and Michael E. Kummer

University of California, Berkeley and Georgia Institute of Technology

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4.

Spillovers in Networks of User Generated Content – Evidence from 23 Natural Experiments on Wikipedia

ZEW - Centre for European Economic Research Discussion Paper No. 13-098

Number of pages: 66 Posted: 19 Nov 2013

Michael E. Kummer

Georgia Institute of Technology

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5.

Money and Privacy – Android Market Evidence

ZEW - Centre for European Economic Research Discussion Paper No. 14-131

Number of pages: 34 Posted: 19 Feb 2015

Michael E. Kummer and Patrick Schulte

Georgia Institute of Technology and Deutsche Bundesbank

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6.

Spillovers in Networks of User Generated Content: Pseudo-Experimental Evidence on Wikipedia

ZEW - Centre for European Economic Research Discussion Paper No. 14-132

Number of pages: 70 Posted: 19 Feb 2015

Michael E. Kummer

Georgia Institute of Technology

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Centrality and Content Creation in Networks – The Case of German Wikipedia

ZEW - Centre for European Economic Research Discussion Paper No. 12-053

Number of pages: 31 Posted: 20 Sep 2012

Michael E. Kummer, Marianne Saam, Iassen Halatchliyski and George Giorgidze

Georgia Institute of Technology, Centre for European Economic Research (ZEW) - Information and Communication Technologies Research Group, affiliation not provided to SSRN and affiliation not provided to SSRN

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8.

Unemployment and Online Labor

ZEW - Centre for European Economic Research Discussion Paper No. 18-023

Number of pages: 47 Posted: 15 May 2018

Kathrin Borchert, Matthias Hirth, Michael E. Kummer, Ulrich Laitenberger, Olga Slivko and Steffen Viete

Institut für Informatik, University of Würzburg, Georgia Institute of Technology, Telecom ParisTech, Centre for European Economic Research (ZEW) - Information and Communication Technologies Research Group and ZEW

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9.

Mobile Applications and Access to Private Data: The Supply Side of the Android Ecosystem

ZEW - Centre for European Economic Research Discussion Paper No. 17-075

Number of pages: 49 Posted: 23 Jan 2018

Reinhold Kesler, Michael E. Kummer and Patrick Schulte

Centre for European Economic Research (ZEW), Georgia Institute of Technology and Deutsche Bundesbank

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10.

Wikipedia Matters

Number of pages: 26 Posted: 03 Oct 2017

Marit Hinnosaar, Toomas Hinnosaar, Michael E. Kummer and Olga Slivko

University of Torino - Collegio Carlo Alberto, Collegio Carlo Alberto, Georgia Institute of Technology and Centre for European Economic Research (ZEW) - Information and Communication Technologies Research Group

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11.

IT Outsourcing and Firm Productivity: Eliminating Bias from Selective Missingness in the Dependent Variable

ZEW - Centre for European Economic Research Discussion Paper No. 16-092

Number of pages: 28 Posted: 11 Jan 2017

Christoph Breunig, Michael E. Kummer, Jörg Ohnemus and Steffen Viete

Humboldt University of Berlin, Georgia Institute of Technology, Centre for European Economic Research (ZEW) and ZEW

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12.

Does Wikipedia Matter? The Effect of Wikipedia on Tourist Choices

ZEW - Centre for European Economic Research Discussion Paper No. 15-089

Number of pages: 28 Posted: 19 Apr 2016 Last Revised: 02 Oct 2017

Marit Hinnosaar, Toomas Hinnosaar, Michael E. Kummer and Olga Slivko

University of Torino - Collegio Carlo Alberto, Collegio Carlo Alberto, Georgia Institute of Technology and Centre for European Economic Research (ZEW) - Information and Communication Technologies Research Group

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When Private Information Settles the Bill: Money and Privacy in Google's Market for Smartphone Applications

ZEW - Centre for European Economic Research Discussion Paper No. 16-031

Number of pages: 46 Posted: 16 Apr 2016

Michael E. Kummer and Patrick Schulte

Georgia Institute of Technology and Deutsche Bundesbank

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Economic Downturn and Volunteering: Do Economic Crises Affect Content Generation on Wikipedia?

ZEW - Centre for European Economic Research Discussion Paper No. 15-078

Number of pages: 38 Posted: 04 Jan 2016

Michael E. Kummer, Olga Slivko and Xiaoquan (Michael) Zhang

Georgia Institute of Technology, Centre for European Economic Research (ZEW) - Information and Communication Technologies Research Group and Chinese University of Hong Kong

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Michael E. Kummer

Georgia Institute of Technology

Centre for European Economic Research (ZEW), Mannheim

Researcher

University of Mannheim - Center for Doctoral Studies in Economics and Management (CDSEM)

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Scholarly Papers (14)

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Market Structure and Market Performance in E-Commerce

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