Isabell M. Welpe

Technische Universität München (TUM) - School of Management

Full Professor/Chair of Strategy and Organisation

Leopoldstrasse 139

Munich, 80804

Germany

http://www.strategie.wi.tum.de

SCHOLARLY PAPERS

21

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CITATIONS
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Top 33,156

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6

Scholarly Papers (21)

Tweets and Trades: The Information Content of Stock Microblogs

Number of pages: 89 Posted: 06 Nov 2010 Last Revised: 10 Aug 2014
Timm O. Sprenger and Isabell M. Welpe
Technische Universität München (TUM) - School of Management and Technische Universität München (TUM) - School of Management
Downloads 3,028 (2,499)
Citation 3

Abstract:

Twitter, Microblogging, Stock Market, Investor Sentiment, Text Classification, Computational Linguistics

Tweets and Trades: The Information Content of Stock Microblogs

European Financial Management, Vol. 20, Issue 5, pp. 926-957, 2014
Number of pages: 32 Posted: 31 Oct 2014
Technische Universität München (TUM) - School of Management, Technische Universität München - TUM School of Management, Frankfurt School of Finance & Management and Technische Universität München (TUM) - School of Management
Downloads 0
Citation 3
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Abstract:

Twitter, microblogging, stock market, investor sentiment, text classification, computational linguistics

2.

News or Noise? The Stock Market Reaction to Different Types of Company-Specific News Events

Number of pages: 66 Posted: 05 Jan 2011 Last Revised: 20 Jan 2011
Timm O. Sprenger and Isabell M. Welpe
Technische Universität München (TUM) - School of Management and Technische Universität München (TUM) - School of Management
Downloads 1,138 (10,258)

Abstract:

Twitter, Microblogging, Text Classification, Stock Market, News, Event Study, News Sentiment

3.

Employer Brand Building for Start-Ups: Which Job Attributes Do Employees Value Most?

Zeitschrift für Betriebswirtschaft/Journal of Business Economics, Vol. 81, pp. 111-136,
Number of pages: 28 Posted: 13 Jan 2011 Last Revised: 22 Mar 2012
Andranik Tumasjan, Maria Strobel and Isabell M. Welpe
Technische Universität München - TUM School of Management, Technische Universität München - TUM School of Management and Technische Universität München (TUM) - School of Management
Downloads 855 (15,952)

Abstract:

entrepreneurial marketing, employer branding, start-ups, personnel marketing, job attributes

4.

Performance Differentiation: Cutting Losses and Maximizing Profits of Private Equity and Venture Capital Investments

Financial Markets and Portfolio Management, Vol. 21, No. 1, pp. 45-67, 2007
Number of pages: 38 Posted: 05 Jan 2007
Rainer Lauterbach, Isabell M. Welpe and Jan Fertig
University of Pennsylvania, Technische Universität München (TUM) - School of Management and Goethe University Frankfurt
Downloads 492 (42,778)
Citation 2

Abstract:

Private Equity, Venture Capital, Staging, Risk, Return, Performance, Profit, Losses

5.

Do Business Ethics Pay Off? The Influence of Ethical Leadership on Organizational Attractiveness

Journal of Psychology/Zeitschrift für Psychologie, Vol. 218, No. 4, pp. 213-224,
Number of pages: 41 Posted: 13 May 2011 Last Revised: 21 Mar 2012
Maria Strobel, Andranik Tumasjan and Isabell M. Welpe
Technische Universität München - TUM School of Management, Technische Universität München - TUM School of Management and Technische Universität München (TUM) - School of Management
Downloads 375 (47,740)

Abstract:

Ethical Leadership, Organizational Attractiveness, Organizational Attraction, Employer Brand, Recruitment

6.

Tweets and Peers: Defining Industry Groups and Strategic Peers based on Investor Perceptions of Stocks on Twitter

Algorithmic Finance (2011), 1:1, 57-76
Number of pages: 21 Posted: 27 Feb 2011
Timm O. Sprenger and Isabell M. Welpe
Technische Universität München (TUM) - School of Management and Technische Universität München (TUM) - School of Management
Downloads 354 (55,415)

Abstract:

Twitter, Microblogging, Stock Market, Industry Classification, Social Network Analysis

7.

Experimental Entrepreneurship: A Research Prospectus

Number of pages: 8 Posted: 16 Jun 2008 Last Revised: 28 Jul 2008
Norris F. Krueger Jr. and Isabell M. Welpe
Entrepreneurship Northwest and Technische Universität München (TUM) - School of Management
Downloads 352 (58,341)

Abstract:

neuro-entrepreneurship, experimental entrepreneurship

8.

Election Forecasts with Twitter - How 140 Characters Reflect the Political Landscape

Social Science Computer Review, Vol. 29, pp. 402-418
Number of pages: 37 Posted: 10 May 2011 Last Revised: 19 Aug 2014
Technische Universität München - TUM School of Management, Technische Universität München (TUM) - School of Management, Frankfurt School of Finance & Management and Technische Universität München (TUM) - School of Management
Downloads 346 (54,899)
Citation 1

Abstract:

Twitter, microblogging, information market, prediction markets, election forecasts, politics, elections, sentiment analysis

9.

Construal Level Theory - Eine Theorie für die Grenzenlose Unternehmung? (Construal Level Theory - A Theory for the Boundaryless Organization?)

Zeitschrift für betriebswirtschaftliche Forschung (zfbf), Sonderheft, Vol. 62, pp. 84-105,
Number of pages: 31 Posted: 07 May 2011 Last Revised: 22 Mar 2012
Isabell M. Welpe, Andranik Tumasjan and Maria Strobel
Technische Universität München (TUM) - School of Management, Technische Universität München - TUM School of Management and Technische Universität München - TUM School of Management
Downloads 299 (63,823)

Abstract:

10.

Merkel, Steinmeier & Co. im Twitter-Äther: Was 140 Zeichen über die politische Stimmung im Netz verraten

Number of pages: 13 Posted: 22 Sep 2009 Last Revised: 09 Oct 2015
Isabell M. Welpe, Philipp G. Sandner and Andranik Tumasjan
Technische Universität München (TUM) - School of Management, Frankfurt School of Finance & Management and Technische Universität München - TUM School of Management
Downloads 219 (93,960)

Abstract:

Politik; Bundestagswahl 2009; Twitter; Internet; Quantitative Analyse

11.

I think It’s Good, but I’m Also Afraid: The Interplay of Opportunity Evaluation and Emotions as Antecedent of Entrepreneurial Exploitation

Indiana University-Bloomington: School of Public & Environmental Affairs Research Paper No. 2011-04-03
Number of pages: 58 Posted: 25 Apr 2011 Last Revised: 05 Aug 2011
Technische Universität München (TUM) - School of Management, University of Applied Management (UAM), University of St. Gallen, Eindhoven University of Technology (TUE) - Department of Industrial Engineering and Innovation Sciences and Indiana University - Institute for Development Strategies
Downloads 194 (109,160)

Abstract:

Entrepreneurial opportunity, affect, emotion, joy, anger, fear, opportunity exploitation, opportunity evaluation

12.

Conflict, Culture, and Performance in Virtual Teams - Results from a Study in an MMOG

Number of pages: 36 Posted: 11 Jan 2011
Ludwig Maximilians University of Munich - Faculty of Business Administration (Munich School of Management), Ludwig Maximilians University of Munich - Faculty of Business Administration (Munich School of Management), Technische Universität München (TUM) - School of Management and affiliation not provided to SSRN
Downloads 156 (140,306)

Abstract:

Virtual teams, conflict, culture, online games, massively multiplayer

13.

Talk, Trust, Succeed – The Impact of Communication in Virtual Groups on Trust in Leaders and on Performance

Number of pages: 46 Posted: 11 Jan 2011 Last Revised: 12 Jan 2011
Ludwig Maximilians University of Munich - Faculty of Business Administration (Munich School of Management), University of South Carolina - Darla Moore School of Business, affiliation not provided to SSRN, Technische Universität München (TUM) - School of Management and Ludwig Maximilians University of Munich - Faculty of Business Administration (Munich School of Management)
Downloads 112 (161,801)

Abstract:

Communication repertoire, communication breadth, trust, online games, massively multiplayer, virtual groups, virtual group work, leadership of virtual groups, media richness, performance

14.

Ethical Leadership Evaluations After Moral Transgression: Social Distance Makes the Difference

Journal of Business Ethics, Vol. 99, No. 4, pp. 609-622
Number of pages: 36 Posted: 18 May 2011 Last Revised: 21 Jul 2014
Andranik Tumasjan, Maria Strobel and Isabell M. Welpe
Technische Universität München - TUM School of Management, Technische Universität München - TUM School of Management and Technische Universität München (TUM) - School of Management
Downloads 111 (175,431)

Abstract:

15.

"If You Don't Know What Port You are Sailing to, No Wind is Favorable": Appointment Preferences of Management Professors

Schmalenbach Business Review, Vol. 60, January 2008
Number of pages: 29 Posted: 04 Mar 2008
Marina Fiedler and Isabell M. Welpe
University of Passau and Technische Universität München (TUM) - School of Management
Downloads 89 (208,531)

Abstract:

Academic Careers, Appointment Preferences, Bologna Process, Individual Influencing Factors, Organizational Change, Organizational Influencing Factors, Personnel Selection Decisions, Selection Criteria, University Reforms

Easy Now, Desirable Later: The Moderating Role of Temporal Distance in Opportunity Evaluation and Exploitation

Entrepreneurship Theory and Practice, Forthcoming
Number of pages: 53 Posted: 23 Mar 2012 Last Revised: 11 May 2012
Andranik Tumasjan, Isabell M. Welpe and Matthias Spörrle
Technische Universität München - TUM School of Management, Technische Universität München (TUM) - School of Management and University of Applied Management (UAM)
Downloads 63 (286,292)

Abstract:

opportunity evaluation, opportunity exploitation, temporal distance, time, construal level theory, psychological distance

Easy Now, Desirable Later: The Moderating Role of Temporal Distance in Opportunity Evaluation and Exploitation

Entrepreneurship Theory and Practice, Vol. 37, Issue 4, pp. 859-888, 2013
Number of pages: 30 Posted: 05 Jul 2013
Andranik Tumasjan, Isabell M. Welpe and Matthias Spörrle
Technische Universität München - TUM School of Management, Technische Universität München (TUM) - School of Management and University of Applied Management (UAM)
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Abstract:

17.

How to Motivate People to Put Their Money Where Their Mouth Is: What Makes Employees Participate in Electronic Prediction Markets?

Technological Forecasting and Social Change, Forthcoming
Number of pages: 39 Posted: 10 Jul 2011
Carolin Decker, Isabell M. Welpe and Bernd H. Ankenbrand
WHU - Otto Beisheim School of Management, Technische Universität München (TUM) - School of Management and Karlshochschule International University
Downloads 42 (324,630)

Abstract:

prediction markets, information and knowledge disclosure, knowledge application, satisfaction, forecasting technology, incentives

18.

Here Be (No More) Dragons: Pushing the Frontier of Research on Virtual Organizations and Teams

Number of pages: 10 Posted: 11 Jan 2011
affiliation not provided to SSRN, affiliation not provided to SSRN, Ludwig Maximilians University of Munich - Faculty of Business Administration (Munich School of Management), Ludwig Maximilians University of Munich - Faculty of Business Administration (Munich School of Management) and Technische Universität München (TUM) - School of Management
Downloads 22 (400,136)

Abstract:

19.

Emotions and Opportunities: The Interplay of Opportunity Evaluation, Fear, Joy, and Anger as Antecedent of Entrepreneurial Exploitation

Entrepreneurship Theory and Practice, Vol. 36, Issue 1, pp. 69-96, 2012
Number of pages: 28 Posted: 19 Jan 2012
Technische Universität München (TUM) - School of Management, University of Applied Management (UAM), University of St. Gallen, Eindhoven University of Technology (TUE) - Department of Industrial Engineering and Innovation Sciences and Indiana University - Institute for Development Strategies
Downloads 1 (526,384)
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Abstract:

20.

Disrupting Industries With Blockchain: The Industry, Venture Capital Funding, and Regional Distribution of Blockchain Ventures

Number of pages: 17 Posted: 20 Oct 2016 Last Revised: 21 Dec 2016
Technische Universität München (TUM) - TUM School of Management, Technische Universität München - TUM School of Management and Technische Universität München (TUM) - School of Management
Downloads 0 (24,375)

Abstract:

blockchain, business models, bitcoin, disruptive innovation

21.

News or Noise? Using Twitter to Identify and Understand Company‐Specific News Flow

Journal of Business Finance & Accounting, Vol. 41, Issue 7-8, pp. 791-830, 2014
Number of pages: 40 Posted: 20 Oct 2014
Technische Universität München (TUM) - School of Management, Frankfurt School of Finance & Management, Technische Universität München - TUM School of Management and Technische Universität München (TUM) - School of Management
Downloads 0 (536,448)
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Abstract:

event study, news events, information leakage, market reaction, computational linguistics