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http://hdl.handle.net/1942/30322
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DC Field | Value | Language |
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dc.contributor.author | BRUNS, Stephan | - |
dc.contributor.author | Kalthaus, Martin | - |
dc.date.accessioned | 2020-01-15T15:43:07Z | - |
dc.date.available | 2020-01-15T15:43:07Z | - |
dc.date.issued | 2020 | - |
dc.date.submitted | 2020-01-13T15:10:31Z | - |
dc.identifier.citation | RESEARCH POLICY, 49 (10) (Art N°103877) | - |
dc.identifier.issn | 0048-7333 | - |
dc.identifier.uri | http://hdl.handle.net/1942/30322 | - |
dc.description.abstract | This study analyzes how researchers' degrees of freedom in selecting patent counts influence econometrically estimated policy effects. Using the evaluation of solar energy policies as an example, we identify 51 strategies to select solar patents from the literature resulting in 306 different solar patent counts, considering six common quality levels of patents. We replicate two leading studies in this literature and re-estimate their econometric models using all of these patent counts. Our results demonstrate severe uncertainty regarding sizes and even signs of key policy effects, opening up the potential for p-hacking and posing a fundamental challenge for evidence-based policymaking. We recommend that more emphasis should be devoted to patent selection procedures, including careful sensitivity analysis regarding key assumptions, such as search strategy and patent quality level. More research is needed to develop common quality standards in working with patent data. | - |
dc.description.sponsorship | Acknowledgments We are grateful to Nick Johnstone for providing us code and data of both policy variables and patent counts for Johnstone et al. (2010) and to Volker Hoffmann and Michael Peters for providing us data on the policy variables of Peters et al. (2012). This paper was written as part of the research project GRETCHEN (The impact of the German policy mix on technological and structural change in renewable power generation technologies), which is funded by the German Ministry of Education and Research (BMBF) within its funding priority “Economics of Climate Change” under the funding label Econ-C-026. We gratefully acknowledge this support. Previous drafts of the paper were presented at the OECD IP Statistics for Decision Makers Conference 2015 in Vienna, at the Ruhr-University Bochum, the 10th European Meeting on Applied Evolutionary Economics in Strasbourg, the ZEW Mannheim Energy Conference 2017 and the EPIP 2017 conference in Bordeaux. We are grateful for discussions by and with Rudi Bekkers, Uwe Cantner, Holger Graf, Maximilian Göthner, Dietmar Harhoff, Christian Pigorsch, Bastian Rake, Muhammad Faraz Riaz and Karoline Rogge. We are grateful for the comments and suggestions by two anonymous reviewers and the editor. | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.rights | 2019 Elsevier B.V. All rights reserve | - |
dc.subject.other | Patent data | - |
dc.subject.other | Sensitivity analysis | - |
dc.subject.other | p-hacking | - |
dc.subject.other | Replication | - |
dc.subject.other | Power | - |
dc.subject.other | Solar energy technologies | - |
dc.title | Flexibility in the selection of patent counts: Implications for p-hacking and evidence-based policymaking | - |
dc.type | Journal Contribution | - |
dc.identifier.issue | 10 | - |
dc.identifier.volume | 49 | - |
local.bibliographicCitation.jcat | A1 | - |
local.publisher.place | RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
local.bibliographicCitation.artnr | 103877 | - |
dc.source.type | Article | - |
dc.identifier.doi | 10.1016/j.respol.2019.103877 | - |
dc.identifier.isi | WOS:000504512100022 | - |
dc.identifier.eissn | 1873-7625 | - |
local.provider.type | Web of Science | - |
local.uhasselt.uhpub | yes | - |
local.uhasselt.international | yes | - |
item.fullcitation | BRUNS, Stephan & Kalthaus, Martin (2020) Flexibility in the selection of patent counts: Implications for p-hacking and evidence-based policymaking. In: RESEARCH POLICY, 49 (10) (Art N°103877). | - |
item.validation | ecoom 2021 | - |
item.accessRights | Open Access | - |
item.fulltext | With Fulltext | - |
item.contributor | BRUNS, Stephan | - |
item.contributor | Kalthaus, Martin | - |
crisitem.journal.issn | 0048-7333 | - |
crisitem.journal.eissn | 1873-7625 | - |
Appears in Collections: | Research publications |
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File | Description | Size | Format | |
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Bruns_Kalthaus_author version.pdf | Peer-reviewed author version | 658.47 kB | Adobe PDF | View/Open |
Bruns_Kalthaus_2020.pdf Restricted Access | Published version | 2.07 MB | Adobe PDF | View/Open Request a copy |
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