Grimpe, Christoph, Katrin Hussinger and Wolfgang Sofka (2023), Reaching beyond the acquirer-target dyad in M&A – Linkages to external knowledge sources and target firm valuation, Long Range Planning 56(3).

Sofka, Wolfgang, Christoph Grimpe and Ulrich Kaiser (2022), Understanding the Unwritten Rules of the Game: Government Work Experience and Salary Premiums in Foreign MNC Subsidiaries, Journal of International Business Studies JIBS 53(6), 1110-1132.

Grimpe, Christoph, Wolfgang Sofka and Ulrich Kaiser (2022), Competing for digital human capital: The retention effect of digital expertise in MNC subsidiaries, Journal of International Business Studies JIBS.

Sofka, Wolfgang, Christoph Grimpe, Fuad Hasanov and Reda Cherif (2021), Additionality or opportunism: Do host-country R&D subsidies impact innovation in foreign MNC subsidiaries?, Journal of International Business Policy 5(3), 296-327.

Grimpe, Christoph, Wolfgang Sofka and Andreas Distel (2021), SME Participation in Research Grant Consortia – The Emergence of Coordinated Attention in Collaborative Innovation, Small Business Economics 59(4), 1567-1592.

Murmann, Martin, Christoph Grimpe and Wolfgang Sofka (2019), Organizational design choices of high‐tech startups: How middle management drives innovation performance, Strategic Entrepreneurship Journal 13(3), 359-378.

Grimpe, Christoph, Ulrich Kaiser and Wolfgang Sofka (2019), Signaling valuable human capital: Advocacy group work experience and its effect on employee pay in innovative firms, Strategic Management Journal 40(4), 685-710.

Ketata, Ihsen, Wolfgang Sofka and Christoph Grimpe (2015), The Role of Internal Capabilities and Firms’ Environment for Sustainable Innovation: Evidence for Germany, R&D Management 45(1), 60-75.

Köhler, Christian, Wolfgang Sofka and Christoph Grimpe (2012), Selective Search, Sectoral Patterns, and the Impact on Product Innovation Performance, Research Policy 41(8), 1344-1356.

de Faria, Pedro and Wolfgang Sofka (2010), Knowledge Protection Strategies of Multinational Firms — A Cross-Country Comparison, Research Policy 39(7), 956-968.

Sofka, Wolfgang and Christoph Grimpe (2010), Specialized Search and Innovation Performance – Evidence Across Europe, R&D Management 40, 310-323.

Aschhoff, Birgit and Wolfgang Sofka (2009), Innovation on Demand – Can Public Procurement Drive Market Success of Innovations?, Research Policy 38, 1235-1247.

Sofka, Wolfgang and Tobias Schmidt (2009), Liability of Foreignness as a Barrier to Knowledge Spillovers: Lost in Translation?, Journal of International Management 15(4), 460-474.

Grimpe, Christoph and Wolfgang Sofka (2009), Search Patterns and Absorptive Capacity: Low- and High-Technology Sectors in European Countries, Research Policy 38 (3), 495-506.

Sofka, Wolfgang (2008), Globalizing Domestic Absorptive Capacities, Management International Review MIR 48 (6), 769-792.

Schmiele, Anja and Wolfgang Sofka (2008), Internationalizing R&D Co-opetition: Dress for the Dance with the Devil, MIT Sloan Management Review 49 (2), 8-9.

Sofka, Wolfgang and Jörg Zimmermann (2008), Regional Economic Stress as Moderator of Liability of Foreignness, Journal of International Management 14 (2), 155-172.

Schmiele, Anja and Wolfgang Sofka (2008), M&A-Investitionen aus Brasilien, Russland, Indien und China in Deutschland, M&A Review 7/2008 , 359-363.

Schmiele, Anja and Wolfgang Sofka (2008), German Financial Experts Welcome M&A from India, freeDoMS, Department of Management Studies, Indian Institute of Science, Bangalore 1/2 , 1-3.

Grimpe, Christoph, Tobias Schmidt and Wolfgang Sofka (2007), Innovationspotenziale in der Bewertung von IPOs, M&A Review 3/2007 , 118-123.

Sofka, Wolfgang (2006), Ostdeutschland als Sprungbrett für ausländische Anbieter, Zeitschrift für die gesamte Wertschöpfungskette Automobilwirtschaft 4/2006 , 19-23.

Borell, Mariela and Wolfgang Sofka (2006), Ausländische Investoren auf dem deutschen Kapitalmarkt: Fremde in einem fremden Land?, Finanz-Betrieb 2 , 114-122.

Meitner, Matthias and Wolfgang Sofka (2003), Barbarians at the Brandenburger Gate, M&A Review 08,09/2003 , 360-367.

Grimpe, Christoph and Wolfgang Sofka (2009), Searching for Innovation in Market and Transition Economies: Evidence Across Europe, in: Academy of Management Chicago,

de Faria, Pedro and Wolfgang Sofka (2009), Formal and Strategic Knowledge Protection Strategies of Multinationals - A Cross Country Comparison, in: Academy of Management Chicago,

Sofka, Wolfgang (2008), Internationalisierungspotenziale von Open-Innovation-Strategien: Chancen und Herausforderungen für das Innovationsmanagement, OPUS-Datenbank ,

Grimpe, Christoph and Wolfgang Sofka (2008), Rapid response capabilities: The importance of speed and flexibility for successful innovation, in: Mostafa H. Sherif, Tarek M. Khalil World Scientific Publishing Co. Pte. Ltd. , New Jersey, 359-380

Grimpe, Christoph, Wolfgang Sofka and John Saee (2007), Managing innovation and learning in dynamic environments: The role of rapid response capabilities, in: John Saee Routledge (Verlag) , London, New York, 328-342

Sofka, Wolfgang and Thorsten Teichert (2006), Global Sensing and Sensibility - A Multi-Stage Matching Assessment of Competitive Advantage from Foreign Sources of Innovation, in: K. Mark Weaver Vol. ISSN 1543-8643 Atlanta,

Heneric, Oliver, Georg Licht and Wolfgang Sofka (2005), Europe's Automotive Industry on the Move, Vol. 32, Physica-Verlag , Heidelberg.

Höwer, Daniel, Tobias Schmidt and Wolfgang Sofka (2011), An Information Economics Perspective on Main Bank Relationships and Firm R&D, ZEW Discussion Paper No. 11-055, Mannheim

Köhler, Christian, Wolfgang Sofka and Christoph Grimpe (2009), Selectivity in Search Strategies for Innovation – From Incremental to Radical, From Manufacturing to Services , ZEW Discussion Paper No. 09-066, Mannheim , published in : Research Policy

Sofka, Wolfgang and Christoph Grimpe (2009), Searching for Innovation in Market and Transition Economies: Evidence Across Europe, ZEW Discussion Paper No. 09-061, Mannheim , published in : Best Papers Proceedings

Schmidt, Tobias and Wolfgang Sofka (2009), Knowledge sourcing: legitimacy deficits for MNC subsidiaries?, Deutsche Bundesbank Discussion Paper Series 1: Economic Studies , Frankfurt.

Zimmermann, Jörg, Christoph Grimpe and Wolfgang Sofka (2009), Young, Open and International: The Impact of Search Strategies on the Internationalization of New Ventures, ZEW Discussion Paper No. 09-017, Mannheim

Sofka, Wolfgang and Christoph Grimpe (2009), Specialized Search and Innovation Performance – Evidence Across Europe, ZEW Discussion Paper No. 09-016, Mannheim , published in : R&D Management

Sofka, Wolfgang and Edlira Shehu (2009), Host Country Contingencies on Knowledge Protection Strategies of Multinational Firms – Bring a Knife to a Gunfight?, ZEW Discussion Paper No. 09-002, Mannheim

Schmidt, Tobias, Franz Schwiebacher and Wolfgang Sofka (2008), The Effects of Experience on Selecting Innovation Projects - Better the Devil You Know, ZEW Discussion Paper No. 08-084, Mannheim

Sofka, Wolfgang and Christoph Grimpe (2008), Managing Search Strategies for Open Innovation - The Role of Environmental Munificence as well as Internal and External R&D, ZEW Discussion Paper No. 08-075, Mannheim

Aschhoff, Birgit and Wolfgang Sofka (2008), Innovation on Demand - Can Public Procurement Drive Market Success of Innovations, ZEW Discussion Paper No. 08-052, Mannheim , published in : Research Policy

Aschhoff, Birgit and Wolfgang Sofka (2008), Successful Patterns of Scientific Knowledge Sourcing – Mix and Match, ZEW Discussion Paper No. 08-033, Mannheim

de Faria, Pedro and Wolfgang Sofka (2008), Formal and Strategic Appropriability Strategies of Multinational Firms – A Cross Country Comparison, ZEW Discussion Paper No. 08-030, Mannheim , published in : Research Policy

Sofka, Wolfgang (2007), Innovation Activities Abroad and the Effects of Liability of Foreignness: Where it Hurts, Georgia Tech Center for International Business Education and Research (CIBER) Working Papers , Atlanta.

Grimpe, Christoph and Wolfgang Sofka (2007), Search Patterns and Absorptive Capacity: A Comparison of Low- and High-Technology Firms from Thirteen European Countries, ZEW Discussion Paper No. 07-062, Mannheim , published in : Research Policy

Sofka, Wolfgang (2007), What Makes Foreign Knowledge Attractive to Domestic Innovation Managers?, ZEW Discussion Paper No. 07-055, Mannheim

Schmiele, Anja and Wolfgang Sofka (2007), Internationalizing R&D Co-opetition: Dress for the Dance with the Devil, ZEW Discussion Paper No. 07-045, Mannheim , published in : MIT Sloan Management Review

Sofka, Wolfgang and Jörg Zimmermann (2007), Regional Dimensions of Liability of Foreignness: Between a Rock and a Hard Place?, Jena Economic Research Papers , Jena.

Grimpe, Christoph, Ihsen Ketata and Wolfgang Sofka (2007), Profiling Sustainable Innovators: Not Ready to Make Nice?, Georgia Tech Center for International Business Education and Research (CIBER) Working Papers , Atlanta.

Sofka, Wolfgang and Jörg Zimmermann (2007), Regional Dimensions of Liability of Foreignness: Between a Rock and a Hard Place?, Max Planck Institute of Economics Papers on Entrepreneurship, Growth and Public Policy , Jena, Germany.

Schmidt, Tobias and Wolfgang Sofka (2006), Lost in Translation - Empirical Evidence for Liability of Foreignness as Barriers to Knowledge Spillovers, ZEW Discussion Paper No. 06-001, Mannheim , published in : Journal of International Management

Sofka, Wolfgang and Thorsten Teichert (2006), Global Sensing and Sensibility - A Multi-Stage Matching Assessment of Competitive Advantage from Foreign Sources of Innovation, ZEW Discussion Paper No. 06-009, Mannheim

Kaiser, Ulrich and Wolfgang Sofka (2006), The Pulse of Liability of Foreignness Dynamic Legitimacy and Experience Effects in the German Car Market, ZEW Discussion Paper No. 06-070, Mannheim

Sofka, Wolfgang (2006), Innovation Activities Abroad and the Effects of Liability of Foreignness: Where it Hurts, ZEW Discussion Paper No. 06-029, Mannheim

Sofka, Wolfgang (2005), Global Idea Sourcing An empirical investigation into the mechanisms behind the usage of foreign business sources for innovation, ZEW Discussion Paper No. 05-53, Mannheim , published in : Management International Review MIR

Sofka, Wolfgang and Jörg Zimmermann (2005), There’s no Place Like Home A strategic framework to overcome liability of foreignness in the German car market., ZEW Discussion Paper No. 05-84, Mannheim

Sofka, Wolfgang and Tobias Schmidt (2004), I Like The Way You Move: An Empirical Investigation into the Mechanisms Behind First Mover and Follower Strategies, ZEW Discussion Paper No. 04-87, Mannheim

Crass, Dirk, Georg Licht, Bettina Peters and Wolfgang Sofka (2009), Time Series Estimates of Intangible Investments – Sensitivity Analysis for Germany, EU-Kommission, Mannheim

Rammer, Christian, Wolfgang Sofka, Harald Legler, Birgit Gehrke and Olaf Krawczyk (2009), Innovationsmotor Chemie 2009 - FuE-Potenziale und Standortwettbewerb, Verband der Chemischen Industrie e.V. (VCI), Mannheim und Hannover

Legler, Harald, Birgit Gehrke, Olaf Krawczyk, Ulrich Schasse, Christian Rammer, Nina Leheyda and Wolfgang Sofka (2009), Die Bedeutung der Automobilindustrie für die deutsche Volkswirtschaft im europäischen Kontext, Bundesministerium für Wirtschaft und Technologie (BMWi), Hannover, Mannheim

Heger, Diana, Daniel Höwer, Georg Licht, Georg Metzger and Wolfgang Sofka (2009), High-Tech-Gründungen in Deutschland - Optimismus trotz Krise, in Zusammenarbeit mit Microsoft, Mannheim

Grimpe, Christoph, Nina Leheyda, Christian Rammer, Anja Schmiele and Wolfgang Sofka (2008), Sectoral Innovation Systems in Europe: Monitoring, Analysing Trends and Identifying Challenges - Machinery and equipment sector , EU Kommission, DG Enterprise, Mannheim

Grimpe, Christoph, Nina Leheyda, Christian Rammer, Anja Schmiele and Wolfgang Sofka (2008), Sectoral Innovation Systems in Europe: Monitoring, Analysing Trends and Identifying Challenges - Automotive Sector, EU Kommission, DG Enterprise, Mannheim

Rammer, Christian, Anja Schmiele, Wolfgang Sofka, Harald Legler, Olaf Krawczyk and Mark Leidmann (2007), Innovationsmotor Chemie 2007 - Die deutsche Chemieindustrie im globalen Wettbewerb, Verband der Chemischen Industrie e.V. (VCI), Mannheim

Czarnitzki, Dirk, Andreas Fier, Oliver Heneric, Katrin Hussinger, Georg Licht, Elisabeth Müller and Wolfgang Sofka (2004), European competitiveness report 2004, Competitiveness and benchmarking, Europäische Kommission, Brussels

Moch, Dietmar, Wolfgang Sofka and Bianca Willauer (2003), European Hedonic Centre - ZEW Report, Eurostat, Mannheim

Rammer, Christian, Oliver Heneric, Wolfgang Sofka and Harald Legler (2003), Innovationsmotor Chemie, Ausstrahlung von Chemie-Innovationen auf andere Branchen, Verband der Chemischen Industrie e.V. (VCI), Mannheim, Hannover

ZEW-Finanzmarktreport Dezember 2007

ZEW-Finanzmarktreport Oktober 2006

ZEW-Finanzmarktreport Oktober 2005

ZEW-Finanzmarktreport Mai 2003

03. – 04.2008 Gastwissenschaftler Oakland Universität, Rochester, MI, USA Oakland University, Rochester, United States of America

05. – 05.2008 Gastwissenschaftler IN+ Center for Innovation, Technology and Policy Research and Instituto Superior Técnico – Technical University of Lisbon, Portugal IN+ Center for Innovation, Technology & Policy Research, Instituto Superior Técnico, Technical University of Lisbon, Portugal

10. – 10.2008 Gastwissenschaftler Deutsche Bundesbank, Frankfurt Deutsche Bundesbank, Frankfurt am Main, Germany

09. – 12.2006 Gastwissenschaftler Georgia Institute of Technology, College of Management, Strategic Management, Atlanta, GA, USA Georgia Institute of Technology, Atlanta, United States of America