Details about Christian Helmers
Access statistics for papers by Christian Helmers.
Last updated 2018-01-17. Update your information in the RePEc Author Service.
Short-id: phe349
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Working Papers
2021
- The Effect of Fee Shifting On Litigation: Evidence from a Policy Innovation in Intermediate Cost Shifting
TSE Working Papers, Toulouse School of Economics (TSE) 
2018
- Green Technology Diffusion: A Post-Mortem Analysis of the Eco-Patent Commons
NBER Working Papers, National Bureau of Economic Research, Inc View citations (3)
- Intellectual Property Use in Middle Income Countries: The Case of Chile
NBER Working Papers, National Bureau of Economic Research, Inc View citations (2)
- The Impact of International Patent Systems: Evidence from Accession to the European Patent Convention
NBER Working Papers, National Bureau of Economic Research, Inc View citations (4)
2017
- In brief... Where top science gets done
CentrePiece - The magazine for economic performance, Centre for Economic Performance, LSE
- Patent litigation in Europe
ULB Institutional Repository, ULB -- Universite Libre de Bruxelles View citations (24)
Also in ZEW Discussion Papers, ZEW - Leibniz Centre for European Economic Research (2013) View citations (8)
See also Journal Article Patent litigation in Europe, European Journal of Law and Economics, Springer (2017) View citations (28) (2017)
2016
- Does Online Search Predict Sales? Evidence from Big Data for Car Markets in Germany and the UK
Working Papers, Queen Mary, University of London, School of Business and Management, Centre for Globalisation Research View citations (3)
- Invalid but infringed? An analysis of the bifurcated patent litigation system
TSE Working Papers, Toulouse School of Economics (TSE) View citations (10)
See also Journal Article Invalid but infringed? An analysis of the bifurcated patent litigation system, Journal of Economic Behavior & Organization, Elsevier (2016) View citations (8) (2016)
- Technology entry in the presence of patent thickets
IFS Working Papers, Institute for Fiscal Studies View citations (1)
Also in NBER Working Papers, National Bureau of Economic Research, Inc (2015) View citations (9)
Working Papers, Queen Mary, University of London, School of Business and Management, Centre for Globalisation Research (2015) View citations (8)
2015
- An Empirical Analysis of Primary and Secondary Pharmaceutical Patents in Chile
NBER Working Papers, National Bureau of Economic Research, Inc View citations (6)
- Attention and Saliency on the Internet: Evidence from an Online Recommendation System
Cambridge Working Papers in Economics, Faculty of Economics, University of Cambridge View citations (3)
Also in Cambridge Working Papers in Economics, Faculty of Economics, University of Cambridge (2015) View citations (4)
CEPR Discussion Papers, C.E.P.R. Discussion Papers (2015) View citations (3)
2014
- Invalid but infringed? An analysis of Germany's bifurcated patent litigation system
ZEW Discussion Papers, ZEW - Leibniz Centre for European Economic Research View citations (1)
- Trademarks Squatters: Evidence from Chile
WIPO Economic Research Working Papers, World Intellectual Property Organization - Economics and Statistics Division
2013
- My Precious! The Location and Diffusion of Scientific Research: Evidence from the Synchrotron Diamond Light Source
SERC Discussion Papers, Centre for Economic Performance, LSE View citations (3)
Also in LSE Research Online Documents on Economics, London School of Economics and Political Science, LSE Library (2013) View citations (2)
See also Journal Article My Precious! The Location and Diffusion of Scientific Research: Evidence from the Synchrotron Diamond Light Source, Economic Journal, Royal Economic Society (2017) View citations (25) (2017)
- My precious! The location and di_x000B_ffusion of scientifi_x000C_c research: evidence from the Synchrotron Diamond Light Source
ERSA conference papers, European Regional Science Association View citations (1)
- The Importance (or not) of Patents to UK Firms
NBER Working Papers, National Bureau of Economic Research, Inc View citations (77)
See also Journal Article The importance (or not) of patents to UK firms, Oxford Economic Papers, Oxford University Press (2013) View citations (77) (2013)
- The use of intellectual property in Chile
WIPO Economic Research Working Papers, World Intellectual Property Organization - Economics and Statistics Division View citations (10)
2012
- Are joint patents collusive? Evidence from the US and Europe
Discussion Paper, Tilburg University, Tilburg Law and Economic Center View citations (4)
- The Choice between Formal and Informal Intellectual Property: A Literature Review
NBER Working Papers, National Bureau of Economic Research, Inc View citations (23)
2011
- Do Spillovers Matter When Estimating Private Returns to R&D?
Discussion Papers, University of Nottingham, GEP View citations (19)
Also in Economic and Financial Reports, European Investment Bank, Economics Department (2010) View citations (15)
See also Journal Article Do Spillovers Matter When Estimating Private Returns to R&D?, The Review of Economics and Statistics, MIT Press (2013) View citations (183) (2013)
- Does the Rotten Child Spoil His Companion? Spatial Peer Effects Among Children in Rural India
Proceedings of the German Development Economics Conference, Berlin 2011, Verein für Socialpolitik, Research Committee Development Economics
Also in LSE Research Online Documents on Economics, London School of Economics and Political Science, LSE Library (2011)
CSAE Working Paper Series, Centre for the Study of African Economies, University of Oxford (2010) View citations (10)
SERC Discussion Papers, Centre for Economic Performance, LSE (2010) View citations (5)
See also Journal Article Does the rotten child spoil his companion? Spatial peer effects among children in rural India, Quantitative Economics, Econometric Society (2014) View citations (20) (2014)
- Innovation and Diffusion of Clean/Green Technology: Can Patent Commons Help?
NBER Working Papers, National Bureau of Economic Research, Inc View citations (14)
Also in MERIT Working Papers, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT) (2011) View citations (8)
See also Journal Article Innovation and diffusion of clean/green technology: Can patent commons help?, Journal of Environmental Economics and Management, Elsevier (2013) View citations (78) (2013)
- Intellectual Property at the Firm-Level in the UK: The Oxford Firm-Level Intellectual Property Database
Economics Series Working Papers, University of Oxford, Department of Economics View citations (18)
- Is the Dragon Learning to Fly? An Analysis of the Chinese Patent Explosion
CSAE Working Paper Series, Centre for the Study of African Economies, University of Oxford View citations (17)
Also in Discussion Papers, University of Nottingham, GEP (2011) View citations (17)
2010
- Export Subsidies in a Heterogeneous Firms Framework: Evidence from Colombia
CSAE Working Paper Series, Centre for the Study of African Economies, University of Oxford View citations (3)
- The Effect of Market Entry on Innovation: Evidence from UK University Incubators
CEP Discussion Papers, Centre for Economic Performance, LSE
- The Impact of University Research on Corporate Patenting
SERC Discussion Papers, Centre for Economic Performance, LSE View citations (1)
Also in LSE Research Online Documents on Economics, London School of Economics and Political Science, LSE Library (2010) View citations (1)
- The role of patent protection in (clean/green) technology transfer
CSAE Working Paper Series, Centre for the Study of African Economies, University of Oxford View citations (23)
Also in MERIT Working Papers, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT) (2010) View citations (24)
NBER Working Papers, National Bureau of Economic Research, Inc (2010) View citations (22)
- Untested Assumptions and Data Slicing: A Critical Review of Firm-Level Production Function Estimators
Economics Series Working Papers, University of Oxford, Department of Economics View citations (63)
2009
- Business R&D expenditure and capital in Europe
EIB Papers, European Investment Bank, Economics Department View citations (1)
- Export subsidies in a heterogeneous firms framework
Kiel Working Papers, Kiel Institute for the World Economy (IfW Kiel) View citations (5)
2008
- Innovation and the Survival of New Firms Across British Regions
Economics Series Working Papers, University of Oxford, Department of Economics View citations (6)
Journal Articles
2017
- Do board interlocks increase innovation? Evidence from a corporate governance reform in India
Journal of Banking & Finance, 2017, 80, (C), 51-70 View citations (48)
- Erratum to: Patent litigation in Europe
European Journal of Law and Economics, 2017, 44, (1), 45-46 View citations (22)
- My Precious! The Location and Diffusion of Scientific Research: Evidence from the Synchrotron Diamond Light Source
Economic Journal, 2017, 127, (604), 2006-2040 View citations (25)
See also Working Paper My Precious! The Location and Diffusion of Scientific Research: Evidence from the Synchrotron Diamond Light Source, SERC Discussion Papers (2013) View citations (3) (2013)
- Patent litigation in Europe
European Journal of Law and Economics, 2017, 44, (1), 1-44 View citations (28)
See also Working Paper Patent litigation in Europe, ULB Institutional Repository (2017) View citations (24) (2017)
- Shared Ownership of Intangible Property Rights: The Case of Patent Coassignments
The Journal of Legal Studies, 2017, 46, (2), 339 - 369 View citations (4)
- What can explain the Chinese patent explosion?
Oxford Economic Papers, 2017, 69, (1), 239-262 View citations (14)
2016
- Invalid but infringed? An analysis of the bifurcated patent litigation system
Journal of Economic Behavior & Organization, 2016, 131, (PA), 218-242 View citations (8)
See also Working Paper Invalid but infringed? An analysis of the bifurcated patent litigation system, TSE Working Papers (2016) View citations (10) (2016)
- The heterogeneous effect of software patents on expected returns: Evidence from India
Economics Letters, 2016, 145, (C), 73-78
2015
- The impact of university research on corporate patenting: evidence from UK universities
The Journal of Technology Transfer, 2015, 40, (1), 1-24 View citations (4)
2014
- Does the rotten child spoil his companion? Spatial peer effects among children in rural India
Quantitative Economics, 2014, 5, 67-121 View citations (20)
See also Working Paper Does the Rotten Child Spoil His Companion? Spatial Peer Effects Among Children in Rural India, Proceedings of the German Development Economics Conference, Berlin 2011 (2011) (2011)
- The Choice between Formal and Informal Intellectual Property: A Review
Journal of Economic Literature, 2014, 52, (2), 375-423 View citations (214)
2013
- Do Spillovers Matter When Estimating Private Returns to R&D?
The Review of Economics and Statistics, 2013, 95, (2), 436-448 View citations (183)
See also Working Paper Do Spillovers Matter When Estimating Private Returns to R&D?, Discussion Papers (2011) View citations (19) (2011)
- Innovation and diffusion of clean/green technology: Can patent commons help?
Journal of Environmental Economics and Management, 2013, 66, (1), 33-51 View citations (78)
See also Working Paper Innovation and Diffusion of Clean/Green Technology: Can Patent Commons Help?, NBER Working Papers (2011) View citations (14) (2011)
- Introduction to the Special Issue on Innovation and Intellectual Property
Oxford Economic Papers, 2013, 65, (3), 597-602
- The Use and Abuse of Export Subsidies: Evidence from Colombia
The World Economy, 2013, 36, (4), 465-486 View citations (14)
- The importance (or not) of patents to UK firms
Oxford Economic Papers, 2013, 65, (3), 603-629 View citations (77)
See also Working Paper The Importance (or not) of Patents to UK Firms, NBER Working Papers (2013) View citations (77) (2013)
2012
- The two faces of foreign management capabilities: FDI and productive efficiency in the UK retail sector
International Business Review, 2012, 21, (1), 71-88 View citations (5)
2011
- Does patenting help high-tech start-ups?
Research Policy, 2011, 40, (7), 1016-1027 View citations (45)
- The formation and evolution of childhood skill acquisition: Evidence from India
Journal of Development Economics, 2011, 95, (2), 252-266 View citations (63)
2010
- Firm growth and firm size
Applied Economics Letters, 2010, 17, (16), 1547-1550 View citations (8)
- Innovation and the Survival of New Firms in the UK
Review of Industrial Organization, 2010, 36, (3), 227-248 View citations (99)
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