Effectiveness of data correction rules in process-produced data : the case of educational attainment
Author
Abstract
Suggested Citation
Download full text from publisher
References listed on IDEAS
- Antoni, Manfred & Drasch, Katrin & Kleinert, Corinna & Matthes, Britta & Ruland, Michael & Trahms, Annette, 2011. "Working and learning in a changing world : Part I: Overview of the study - March 2011 (Second, updated version)," FDZ Methodenreport 201005_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Kruppe, Thomas, 2006. "Die Förderung beruflicher Weiterbildung : eine mikroökonometrische Evaluation der Ergänzung durch das ESF-BA-Programm," IAB-Discussion Paper 200621, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Peter Gottschalk & Minh Huynh, 2010.
"Are Earnings Inequality and Mobility Overstated? The Impact of Nonclassical Measurement Error,"
The Review of Economics and Statistics, MIT Press, vol. 92(2), pages 302-315, May.
- Peter Gottschalk & Minh Huynh, 2006. "Are Earnings Inequality and Mobility Overstated? The Impact of Non-Classical Measurement Error," Boston College Working Papers in Economics 649, Boston College Department of Economics.
- Gottschalk, Peter T. & Huynh, Minh, 2006. "Are Earnings Inequality and Mobility Overstated? The Impact of Non-Classical Measurement Error," IZA Discussion Papers 2327, Institute of Labor Economics (IZA).
- Scioch, Patrycja, 2010. "The impact of cleansing procedures for overlaps on estimation results : evidence for German administrative data," FDZ Methodenreport 201004_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- repec:iab:iabfme:201004(en is not listed on IDEAS
- Katharina Kröger & Uwe Fachinger & Ralf K. Himmelreicher, 2011. "Empirische Forschungsvorhaben zur Alterssicherung Einige kritische Anmerkungen zur aktuellen Datenlage," RatSWD Working Papers 170, German Data Forum (RatSWD).
- Martin H. David & Christopher R. Bollinger, 2005.
"I didn't tell, and I won't tell: dynamic response error in the SIPP,"
Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 20(4), pages 563-569.
- Christopher R. Bollinger & Martin H. David, 2005. "I didn't tell, and I won't tell: dynamic response error in the SIPP," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 20(4), pages 563-569, May.
- Büttner, Thomas & Rässler, Susanne, 2008. "Multiple imputation of right-censored wages in the German IAB Employment Sample considering heteroscedasticity," IAB-Discussion Paper 200844, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Per Johansson & Per Skedinger, 2009. "Misreporting in register data on disability status: evidence from the Swedish Public Employment Service," Empirical Economics, Springer, vol. 37(2), pages 411-434, October.
- Hugo Benítez-Silva & Moshe Buchinsky & Hiu Man Chan & Sofia Cheidvasser & John Rust, 2004.
"How large is the bias in self-reported disability?,"
Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 19(6), pages 649-670.
- Hugo Benitez-Silva & Moshe Buchinsky & Hiu Man Chan & Sofia Cheidvasser & John Rust, 2000. "How Large is the Bias is Self-Reported Disability?," NBER Working Papers 7526, National Bureau of Economic Research, Inc.
- Hugo Benitez-Silva & Moshe Buchinsky & Hiu Man Chan & Sofia Cheidvasser & John Rust, 2000. "How Large is the Bias in Self-Reported Disability?," Working Papers 2000-01, Brown University, Department of Economics.
- Nina Baur, 2011. "Mixing process-generated data in market sociology," Quality & Quantity: International Journal of Methodology, Springer, vol. 45(6), pages 1233-1251, October.
- repec:iab:iabfme:201011(en is not listed on IDEAS
- repec:iab:iabfme:201005(en is not listed on IDEAS
- Laura Wichert & Ralf A. Wilke, 2012.
"Which factors safeguard employment?: an analysis with misclassified German register data,"
Journal of the Royal Statistical Society Series A, Royal Statistical Society, vol. 175(1), pages 135-151, January.
- Wichert, Laura & Wilke, Ralf A., 2010. "Which factors safeguard employment? : An analysis with misclassified German register data," FDZ Methodenreport 201011_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Knut R¯ed & Oddbj¯rn Raaum, 2003. "Administrative registers - Unexplored reservoirs of Scientific Knowledge?," Economic Journal, Royal Economic Society, vol. 113(488), pages 258-281, June.
Citations
Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
Cited by:
- Stephan, Gesine & Uthmann, Sven, 2014. "Akzeptanz von Vergeltungsmaßnahmen am Arbeitsplatz : Befunde aus einer quasi-experimentellen Untersuchung," IAB-Discussion Paper 201427, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Berlingieri, Francesco & Gathmann, Christina & Quinckhardt, Matthias, 2022.
"College Openings and Local Economic Development,"
CEPR Discussion Papers
17374, C.E.P.R. Discussion Papers.
- Berlingieri, Francesco & Gathmann, Christina & Quinckhardt, Matthias, 2022. "College Openings and Local Economic Development," IZA Discussion Papers 15364, Institute of Labor Economics (IZA).
- Berlingieri, Francesco & Gathmann, Christina & Quinckhardt, Matthias, 2022. "College openings and local economic development," ZEW Discussion Papers 22-029, ZEW - Leibniz Centre for European Economic Research.
- Stüber, Heiko & Seth, Stefan, 2019. "The FDZ sample of the Administrative Wage and Labor Market Flow Panel 1976 - 2014," FDZ Datenreport. Documentation on Labour Market Data 201901_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- repec:iab:iabfda:201603(de is not listed on IDEAS
- Hartmut Egger & Elke J. Jahn & Udo Kreickemeier, 2018.
"Distance and the Multinational Wage Premium,"
CESifo Working Paper Series
7347, CESifo.
- Kreickemeier, Udo, 2018. "Distance and the Multinational Wage Premium," VfS Annual Conference 2018 (Freiburg, Breisgau): Digital Economy 181618, Verein für Socialpolitik / German Economic Association.
- Eberle, Johanna & Schmucker, Alexandra, 2017. "The establishment History Panel : Redesign and update 2016," FDZ Methodenreport 201703_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Stüber, Heiko & Seth, Stefan & Stegmaier, Jens, 2020. "The Administrative Wage and Labor Market Flow Panel Extension for the IAB Establishment Panel 1993 - 2014," FDZ Datenreport. Documentation on Labour Market Data 202007_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- repec:iab:iabfda:202007(en is not listed on IDEAS
- repec:iab:iabfda:202008(en is not listed on IDEAS
- Dlugosz, Stephan & Mammen, Enno & Wilke, Ralf A., 2017.
"Generalized partially linear regression with misclassified data and an application to labour market transitions,"
Computational Statistics & Data Analysis, Elsevier, vol. 110(C), pages 145-159.
- Dlugosz, Stephan & Mammen, Enno & Wilke, Ralf A., 2015. "Generalised partially linear regression with misclassied data and an application to labour market transitions," FDZ-Methodenreport 201510 (en), Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Dlugosz, Stephan & Mammen, Enno & Wilke, Ralf A., 2015. "Generalised partially linear regression with misclassified data and an application to labour market transitions," ZEW Discussion Papers 15-043, ZEW - Leibniz Centre for European Economic Research.
- Schmucker, Alexandra & Seth, Stefan & Ludsteck, Johannes & Eberle, Johanna & Ganzer, Andreas, 2016. "Betriebs-Historik-Panel 1975-2014 (Establishment History Panel 1975-2014)," FDZ Datenreport. Documentation on Labour Market Data 201603_de, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Schmucker, Alexandra & Seth, Stefan & Ludsteck, Johannes & Eberle, Johanna & Ganzer, Andreas, 2016. "Establishment History Panel 1975-2014," FDZ Datenreport. Documentation on Labour Market Data 201603_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Dlugosz, Stephan & Mammen, Enno & Wilke, Ralf A., 2015.
"Generalised partially linear regression with misclassified data and an application to labour market transitions,"
ZEW Discussion Papers
15-043, ZEW - Leibniz Centre for European Economic Research.
- Dlugosz, Stephan & Mammen, Enno & Wilke, Ralf A., 2015. "Generalised partially linear regression with misclassied data and an application to labour market transitions," FDZ Methodenreport 201510_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Eberle Johanna & Schmucker Alexandra, 2017. "The Establishment History Panel – Redesign and Update 2016," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 237(6), pages 535-547, December.
- Reichelt, Malte & Vicari, Basha, 2014. "Ausbildungsinadäquate Beschäftigung in Deutschland: Im Osten sind vor allem Ältere für ihre Tätigkeit formal überqualifiziert (Job-qualification mismatch in Germany: In East Germany, especially older ," IAB-Kurzbericht 201425, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Seth, Stefan & Stüber, Heiko, 2018. "The Administrative Wage and Labor Market Flow Panel," FAU Discussion Papers in Economics 01/2017, Friedrich-Alexander University Erlangen-Nuremberg, Institute for Economics, revised 2018.
- Stüber, Heiko & Seth, Stefan & Lochner, Benjamin, 2020. "The Administrative Wage and Labor Market Flow Panel Extension for the IAB Job Vacancy Survey 2010 - 2014," FDZ Datenreport. Documentation on Labour Market Data 202008_en, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- repec:iab:iabfda:201901(en is not listed on IDEAS
Most related items
These are the items that most often cite the same works as this one and are cited by the same works as this one.- Dlugosz, Stephan, 2011. "Give missings a chance: Combined stochastic and rule-based approach to improve regression models with mismeasured monotonic covariates without side information," ZEW Discussion Papers 11-013, ZEW - Leibniz Centre for European Economic Research.
- repec:iab:iabfme:201011(en is not listed on IDEAS
- Brent Kreider & Steven C. Hill, 2009.
"Partially Identifying Treatment Effects with an Application to Covering the Uninsured,"
Journal of Human Resources, University of Wisconsin Press, vol. 44(2).
- Kreider, Brent & Hill, Steven C., 2005. "Partially Identifying Treatment Effects with an Application to Covering the Uninsured," Staff General Research Papers Archive 12296, Iowa State University, Department of Economics.
- Kreider, Brent & Hill, Steven C., 2009. "Partially Identifying Treatment Effects with an Application to Covering the Uninsured," ISU General Staff Papers 200904010700001636, Iowa State University, Department of Economics.
- Brizmohun, Roshini & Duffy, Patricia A., 2016. "Do Personal Attitudes about Welfare Influence Food Stamp Participation?," 2016 Annual Meeting, July 31-August 2, Boston, Massachusetts 235698, Agricultural and Applied Economics Association.
- Thomas Barnay, 2016.
"Health, work and working conditions: a review of the European economic literature,"
The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 17(6), pages 693-709, July.
- Thomas Barnay, 2014. "Health, Work and Working Conditions : A Review of the European Economic Literature," Erudite Working Paper 2014-04, Erudite.
- Thomas Barnay, 2016. "Health, Work and Working Conditions: A Review of the European Economic Literature," Post-Print hal-01297538, HAL.
- Thomas Barnay, 2014. "Health, Work and Working Conditions: A Review of the European Economic Literature," OECD Economics Department Working Papers 1148, OECD Publishing.
- Thomas Barnay, 2014. "Health, Work and Working Conditions: A Review of the European Economic Literature," TEPP Working Paper 2014-08, TEPP.
- Thomas Barnay, 2014. "Health, Work and Working Conditions: A Review of the European Economic Literature," Post-Print hal-01044972, HAL.
- Thomas Barnay, 2014. "Health, Work and Working Conditions: A Review of the European Economic Literature," Working Papers halshs-01100259, HAL.
- Richard Blundell & Jack Britton & Monica Costa Dias & Eric French, 2023.
"The Impact of Health on Labor Supply near Retirement,"
Journal of Human Resources, University of Wisconsin Press, vol. 58(1), pages 282-334.
- Richard Blundell & Jack Britton & Monica Costa Dias & Eric French, 2017. "The impact of health on labour supply near retirement," IFS Working Papers W17/18, Institute for Fiscal Studies.
- Richard Blundell & Jack Britton & Monica Costa Dias & Eric French, 2017. "The Impact of Health on Labor Supply Near Retirement," Working Papers wp364, University of Michigan, Michigan Retirement Research Center.
- Oliver Denk & Jean‐Baptiste Michau, 2018.
"Optimal Social Security with Imperfect Tagging,"
Scandinavian Journal of Economics, Wiley Blackwell, vol. 120(3), pages 717-762, July.
- Oliver Denk & Jean-Baptiste Michau, 2013. "Optimal Social Security with Imperfect Tagging," Working Papers hal-00796521, HAL.
- Angrist, Joshua D. & Chen, Stacey H. & Frandsen, Brigham R., 2010.
"Did Vietnam veterans get sicker in the 1990s? The complicated effects of military service on self-reported health,"
Journal of Public Economics, Elsevier, vol. 94(11-12), pages 824-837, December.
- Joshua D. Angrist & Stacey H. Chen & Brigham R. Frandsen, 2009. "DID VIETNAM VETERANS GET SICKER IN THE 1990s? THE COMPLICATED EFFECTS OF MILITARY SERVICE ON SELF-REPORTED HEALTH," Royal Holloway, University of London: Discussion Papers in Economics 09/09, Department of Economics, Royal Holloway University of London.
- Joshua Angrist & Stacey Chen & Brigham Frandsen, 2009. "Did Vietnam Veterans Get Sicker in the 1990s? The Complicated Effects of Military Service on Self-Reported Health," Working Papers 09-19, Center for Economic Studies, U.S. Census Bureau.
- Joshua D. Angrist & Stacey H. Chen & Brigham R. Frandsen, 2009. "Did Vietnam Veterans Get Sicker in the 1990s? The Complicated Effects of Military Service on Self-Reported Health," NBER Working Papers 14781, National Bureau of Economic Research, Inc.
- Joshua D. Angrist & Stacey H. Chen & Brigham R. Frandsen, 2010. "Did Vietnam Veterans Get Sicker in the 1990s? The Complicated Effects of Military Service on Self-Reported Health," CEP Discussion Papers dp1041, Centre for Economic Performance, LSE.
- Angrist, Joshua D. & Chen, Stacey H. & Frandsen, Brigham R., 2010. "Did Vietnam veterans get sicker in the 1990s? The complicated effects of military service on self-reported health," LSE Research Online Documents on Economics 121903, London School of Economics and Political Science, LSE Library.
- Stella Martin & Kevin Stabenow & Mark Trede, 2024. "Measurement Error in Earnings," CQE Working Papers 10824, Center for Quantitative Economics (CQE), University of Muenster.
- Kohlbrecher, Britta & Merkl, Christian & Nordmeier, Daniela, 2016.
"Revisiting the matching function,"
Journal of Economic Dynamics and Control, Elsevier, vol. 69(C), pages 350-374.
- Kohlbrecher, Britta & Merkl, Christian & Nordmeier, Daniela, 2014. "Revisiting the matching function," Kiel Working Papers 1909, Kiel Institute for the World Economy (IfW Kiel).
- Britta Kohlbrecher & Christian Merkl & Daniela Nordmeier, 2016. "Revisiting the Matching Function," CESifo Working Paper Series 5924, CESifo.
- Kohlbrecher, Britta & Merkl, Christian & Nordmeier, Daniela, 2014. "Revisiting the Matching Function," IZA Discussion Papers 8515, Institute of Labor Economics (IZA).
- Kohlbrecher, Britta & Merkl, Christian & Nordmeier, Daniela, 2014. "Revisiting the matching function," IAB-Discussion Paper 201405, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Kohlbrecher, Britta & Merkl, Christian & Nordmeier, Daniela, 2016. "Revisiting the matching function," FAU Discussion Papers in Economics 06/2016, Friedrich-Alexander University Erlangen-Nuremberg, Institute for Economics.
- Katrin Drasch & Britta Matthes, 2013. "Improving retrospective life course data by combining modularized self-reports and event history calendars: experiences from a large scale survey," Quality & Quantity: International Journal of Methodology, Springer, vol. 47(2), pages 817-838, February.
- Bennmarker, Helge & Skans, Oskar Nordström & Vikman, Ulrika, 2013.
"Workfare for the old and long-term unemployed,"
Labour Economics, Elsevier, vol. 25(C), pages 25-34.
- Bennmarker, Helge & Nordström Skans, Oskar & Vikman, Ulrika, 2012. "Workfare for the old and long-term unemployed," Working Paper Series, Center for Labor Studies 2012:8, Uppsala University, Department of Economics.
- Bennmarker, Helge & Nordström Skans, Oskar & Vikman, Ulrika, 2012. "Workfare for the old and long-term unemployed," Working Paper Series 2012:7, IFAU - Institute for Evaluation of Labour Market and Education Policy.
- Ronald Hagan & Andrew M. Jones & Nigel Rice, 2009.
"Health and Retirement in Europe,"
IJERPH, MDPI, vol. 6(10), pages 1-20, October.
- Ronald Hagan & Andrew M. Jones & Nigel Rice, 2006. "Health and retirement in Europe," Health, Econometrics and Data Group (HEDG) Working Papers 06/10, HEDG, c/o Department of Economics, University of York.
- Nabanita Datta Gupta & Mona Larsen, 2010. "The impact of health on individual retirement plans: self‐reported versus diagnostic measures," Health Economics, John Wiley & Sons, Ltd., vol. 19(7), pages 792-813, July.
- Ricardo Pagán & Andrés J. Marchante, 2004. "Análisis de las diferencias salariales por discapacidad en España: el caso de los varones," Hacienda Pública Española / Review of Public Economics, IEF, vol. 171(4), pages 75-100, december.
- Mathias Silva, 2023.
"Parametric models of income distributions integrating misreporting and non-response mechanisms,"
AMSE Working Papers
2311, Aix-Marseille School of Economics, France.
- Mathias Silva, 2023. "Parametric models of income distributions integrating misreporting and non-response mechanisms," Working Papers hal-04093646, HAL.
- Hamish Low & Luigi Pistaferri, 2015.
"Disability Insurance and the Dynamics of the Incentive Insurance Trade-Off,"
American Economic Review, American Economic Association, vol. 105(10), pages 2986-3029, October.
- Hamish Low & Luigi Pistaferri, 2014. "Disability Insurance and the Dynamics of the Incentive-Insurance Tradeoff," Cambridge Working Papers in Economics 1420, Faculty of Economics, University of Cambridge.
- Dlugosz, Stephan & Mammen, Enno & Wilke, Ralf A., 2017.
"Generalized partially linear regression with misclassified data and an application to labour market transitions,"
Computational Statistics & Data Analysis, Elsevier, vol. 110(C), pages 145-159.
- Dlugosz, Stephan & Mammen, Enno & Wilke, Ralf A., 2015. "Generalised partially linear regression with misclassied data and an application to labour market transitions," FDZ-Methodenreport 201510 (en), Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
- Dlugosz, Stephan & Mammen, Enno & Wilke, Ralf A., 2015. "Generalised partially linear regression with misclassified data and an application to labour market transitions," ZEW Discussion Papers 15-043, ZEW - Leibniz Centre for European Economic Research.
- Werner Eichhorst & Klaus F. Zimmermann, 2007.
"And Then There Were Four...How Many (and Which) Measures of Active Labor Market Policy Do We Still Need?,"
Applied Economics Quarterly (formerly: Konjunkturpolitik), Duncker & Humblot, Berlin, vol. 53(3), pages 243-272.
- Zimmermann, Klaus F. & Eichhorst, Werner, 2007. "And Then There Were Four... How Many (and Which) Measures of Active Labour Market Policy Do We Still Need?," CEPR Discussion Papers 6246, C.E.P.R. Discussion Papers.
- Umut Oguzoglu, 2010.
"Dynamics of work limitation and work in Australia,"
Health Economics, John Wiley & Sons, Ltd., vol. 19(6), pages 656-669, June.
- Oguzoglu, Umut, 2007. "Dynamics of Work Limitation and Work in Australia," IZA Discussion Papers 2867, Institute of Labor Economics (IZA).
- Umut Oguzoglu, 2007. "Dynamics of Work-Limitation and Work in Australia," Melbourne Institute Working Paper Series wp2007n10, Melbourne Institute of Applied Economic and Social Research, The University of Melbourne.
- Otto Kässi, 2014.
"Earnings dynamics of men and women in Finland: permanent inequality versus earnings instability,"
Empirical Economics, Springer, vol. 46(2), pages 451-477, March.
- Kässi, Otto, 2011. "Earnings Dynamics of Men and Women in Finland: Permanent Inequality versus Earnings Instability," MPRA Paper 34301, University Library of Munich, Germany.
More about this item
Keywords
Bundesrepublik Deutschland ; Datenaufbereitung ; Datenqualität ; IAB-Datensatz Arbeiten und Lernen ; Imputationsverfahren ; Interview ; prozessproduzierte Daten;All these keywords.
JEL classification:
- C80 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - General
- I20 - Health, Education, and Welfare - - Education - - - General
NEP fields
This paper has been announced in the following NEP Reports:- NEP-EDU-2014-06-22 (Education)
Statistics
Access and download statisticsCorrections
All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:iab:iabdpa:201415. See general information about how to correct material in RePEc.
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: IAB, Geschäftsbereich Wissenschaftliche Fachinformation und Bibliothek (email available below). General contact details of provider: https://edirc.repec.org/data/iabbbde.html .
Please note that corrections may take a couple of weeks to filter through the various RePEc services.