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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

  • Technische Universität München (TUM) - School of Management

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    • Tel: ++49/89/289-24800
    • Fax: ++49/89/289-24805
SCHOLARLY PAPERS

21

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CITATIONS
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Top 33,183

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6

Scholarly Papers (21)

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1.

Tweets and Trades: The Information Content of Stock Microblogs

Downloads 3,057 ( 2,622)
Citation 3

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 3,057 (2,560)
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
Timm O. Sprenger, Andranik Tumasjan, Philipp G. Sandner and Isabell M. Welpe
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

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 (10,257)

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 (16,051)

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 (43,871)
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 (48,013)

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 (55,941)

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 (58,872)

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
Andranik Tumasjan, Timm O. Sprenger, Philipp G. Sandner and Isabell M. Welpe
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 (55,103)
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 (64,584)

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 (93,884)

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
Isabell M. Welpe, Matthias Spörrle, Dietmar Grichnik, Theresa Treffers and David B. Audretsch
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 (111,177)

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
Julia Valerie Gallenkamp, Arnold Oskar Picot, Isabell M. Welpe and Marcus Drescher
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 (143,986)

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
Julia Valerie Gallenkamp, M. Audrey Korsgaard, Jakob J. Assmann, Isabell M. Welpe and Arnold Oskar Picot
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 (162,280)

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 (174,770)

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 (208,411)

Abstract:

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

16.

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

Downloads 64 (287,910)

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 64 (291,462)

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)
Downloads 0

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 (333,408)

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
Jakob J. Assmann, Marcus Drescher, Julia Valerie Gallenkamp, Arnold Oskar Picot and Isabell M. Welpe
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 (410,709)

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
Isabell M. Welpe, Matthias Spörrle, Dietmar Grichnik, Theresa Treffers and David B. Audretsch
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 (539,700)

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
Maximilian Friedlmaier, Andranik Tumasjan and Isabell M. Welpe
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 (12,776)

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
Timm O. Sprenger, Philipp G. Sandner, Andranik Tumasjan and Isabell M. Welpe
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 (552,972)

Abstract:

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

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