Spengel, Christoph, Frank Schmidt, Jost Henrich Heckemeyer, Katharina Nicolay, Alexandra Bartholmeß, Christopher Ludwig, Daniela Steinbrenner, Peter Buchmann, Theresa Bührle, Verena Dutt, Leonie Fischer, Julia Spix, Barbara Stage, Stefan Weck and Sophia Wickel (2022), Effective Tax Levels Using the Devereux/Griffith Methodology, Final Report 2021, Europäische Kommission - Generaldirektion Steuern und Zollunion, Mannheim

Spengel, Christoph, Frank Schmidt, Jost Henrich Heckemeyer, Katharina Nicolay, Alexandra Bartholmeß, Christopher Ludwig, Daniela Steinbrenner, Peter Buchmann, Theresa Bührle, Verena Dutt, Leonie Fischer, Julia Spix and Barbara Stage (2021), Effective Tax Levels Using the Devereux/Griffith Methodology - Update 2020, EU-Kommission, Mannheim

Spengel, Christoph, Frank Schmidt, Jost Henrich Heckemeyer, Katharina Nicolay, Alexandra Bartholmeß, Christopher Ludwig, Daniela Steinbrenner, Peter Buchmann, Theresa Bührle, Verena Dutt, Leonie Fischer and Barbara Stage (2020), Effective Tax Levels Using the Devereux/Griffith Methodology - Update 2019, EU-Kommission, Mannheim

Spengel, Christoph, Frank Schmidt, Jost Henrich Heckemeyer, Katharina Nicolay, Alexandra Bartholmeß, Christopher Ludwig, Daniela Steinbrenner, Rainer Bräutigam, Peter Buchmann, Theresa Bührle, Elisa Casi, Verena Dutt, Leonie Fischer, Christoph Harendt, Raphael Müller, Thomas Schwab, Barbara Stage, Heiko Vay and Ann-Catherin Werner (2019), Effective Tax Levels Using the Devereux/Griffith Methodology - Update 2018, Project for the EU Commission TAXUD/2018/DE/307 Intermediary Report 2018 , Mannheim

Spengel, Christoph, Frank Schmidt, Jost Henrich Heckemeyer, Katharina Nicolay, Alexandra Bartholmeß, Rainer Bräutigam, Julia Braun, Peter Buchmann, Theresa Bührle, Elisa Casi, Verena Dutt, Leonie Fischer, Christoph Harendt, Marcel Olbert, Olena Pfeiffer, Thomas Schwab, Daniela Steinbrenner, Kathrin Stutzenberger, Maximilian Todtenhaupt, Heiko Vay and Ann-Catherin Werner (2018), Effective Tax Levels Using the Devereux/Griffith Methodology - Update 2017, Project for the EU Commission TAXUD/2013/CC/120 Final Report 2017, Mannheim

Nicolay, Katharina, Irene Bertschek, Christoph Spengel, Ulrich Laitenberger, Thomas Niebel, Peter Buchmann and Ann-Catherin Werner (2018), Struktur und Volumen des Marktes von Internetdienstleistungen mit Fokus auf Drittlandsunternehmen, Bundesministerium der Finanzen (BMF), Berlin

2023: Geo data for research - OSRM and Nominatim, UB department meeting, Mannheim ZEW, Germany more information

2023: Apache Echarts for behavioral experiment, FM project meeting, Mannheim ZEW, Germany more information

2022: Macro trends in savings, FM department meeting, Mannheim ZEW, Germany more information

2022: PWA technology prototype, FM department meeting, Mannheim ZEW, Germany more information

2022: Latest trends in email server configuration, FM department meeting, Mannheim ZEW, Germany more information

2022: Email mailing tool, FMT meeting, Mannheim ZEW, Germany more information

2022: Survey of private debt market, Meeting mit Kunden, Mannheim ZEW, Germany more information

2021: Open source lib "structures into HTML forms", FMT project group meeting, Mannheim ZEW, Germany more information

2021: CSS grid simulator, UB department meeting, Mannheim ZEW, Germany more information

2021: Release of go-questionnaire version 2.0, FMT project group meeting, Mannheim ZEW, Germany more information

2021: Pure Javascript validation, FMT project group meeting, Mannheim ZEW, Germany more information

2020: Introducing a GIT server at ZEW, ZEW IT round table plus Vertreter der Forschungsabteilungen, ZEW, Germany more information

2020: Retirement saving as smartphone app, FM Seminar, ZEW, Germany more information

2020: New design technology for ZEW index survey, FM Seminar, ZEW, Germany more information

2020: Architecture for "Pricing of aesthetics in real estate", FM Seminar, ZEW, Germany more information

2020: Python for Researchers - Python Course, Workshop 'Text as data', ZEW, Germany more information

2019: Proposition of a neural networks workshop at ZEW, UB Retreat, ZEW, Germany more information

2018: Python for Researchers - Python Course, 3 days introduction into Python, scraping, numpy and pandas, ZEW, Germany more information

2017: Taxation database release, UB department meeting, ZEW Mannheim, Germany more information