Amanda Sahrbacher

Personal Details

First Name:	Amanda
Middle Name:
Last Name:	Sahrbacher
Suffix:
RePEc Short-ID:	psa989
	[This author has chosen not to make the email address public]

Affiliation

Leibniz-Institut für Agrarentwicklung in Transformationsökonomien (IAMO)

Halle, Germany
http://www.iamo.de/
RePEc:edi:iamoode (more details at EDIRC)

Citations

Many of the citations below have been collected in an experimental project, CitEc, where a more detailed citation analysis can be found. These are citations from works listed in RePEc that could be analyzed mechanically. So far, only a minority of all works could be analyzed. See under "Corrections" how you can help improve the citation analysis.

Working papers

1. Sahrbacher, Amanda & Hristov, Jordan & Brady, Mark & Sahrbacher, Christoph & Günther, Josef, 2016. "A combined approach to assess the impact of Ecological Focus Areas on regional structural development," 149th Seminar, October 27-28, 2016, Rennes, France 244958, European Association of Agricultural Economists.

   Cited by:

   1. Plogmann, Jana & Mußhoff, Oliver & Odening, Martin & Ritter, Matthias, 2020. "Farm growth and land concentration," FORLand Working Papers 24 (2020), Humboldt University Berlin, DFG Research Unit 2569 FORLand "Agricultural Land Markets – Efficiency and Regulation".
      • Plogmann, Jana & Mußhoff, Oliver & Odening, Martin & Ritter, Matthias, 2022. "Farm growth and land concentration," Land Use Policy, Elsevier, vol. 115(C).
      • Plogmann, Jana & Mußhoff, Oliver & Odening, Martin & Ritter, Matthias, 2020. "Farm growth and land concentration," 2020 Annual Meeting, July 26-28, Kansas City, Missouri 304514, Agricultural and Applied Economics Association.

2. Osuch, Amanda & Sahrbacher, Christoph & Kellermann, Konrad & Happe, Kathrin, 2008. "Policy Risk Through Modulation of Direct Payments: Can Farms Live with a Strategic Disadvantage?," 108th Seminar, February 8-9, 2008, Warsaw, Poland 48113, European Association of Agricultural Economists.

   Cited by:

   1. Sahrbacher, Amanda, 2012. "Impacts of CAP reforms on farm structures and performance disparities: An agent-based approach," Studies on the Agricultural and Food Sector in Transition Economies, Leibniz Institute of Agricultural Development in Transition Economies (IAMO), volume 65, number 65.

3. Osuch, Amanda, 2005. "The Impact of First and Second Pillars' Aids from CAP on Farm Profits in France," 2005 International Congress, August 23-27, 2005, Copenhagen, Denmark 24576, European Association of Agricultural Economists.

   Cited by:

   1. Katona-Kovacs, Judit & Dax, Thomas, 2008. "Sustainable Rural Development in Environmentally Protected Areas of Hungary and Austria: The Role of CAP payments," 2008 International Congress, August 26-29, 2008, Ghent, Belgium 44438, European Association of Agricultural Economists.

Articles

1. Hristov, Jordan & Clough, Yann & Sahlin, Ullrika & Smith, Henrik G. & Stjernman, Martin & Olsson, Ola & Sahrbacher, Amanda & Brady, Mark V., 2020. "Impacts of the EU's Common Agricultural Policy “Greening” reform on agricultural development, biodiversity, and ecosystem services," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 42(4), pages 716-738.
   • Jordan Hristov & Yann Clough & Ullrika Sahlin & Henrik G. Smith & Martin Stjernman & Ola Olsson & Amanda Sahrbacher & Mark V. Brady, 2020. "Impacts of the EU's Common Agricultural Policy “Greening” Reform on Agricultural Development, Biodiversity, and Ecosystem Services," Applied Economic Perspectives and Policy, John Wiley & Sons, vol. 42(4), pages 716-738, December.

   Cited by:

   1. Zdenka Zakova Kroupova & Lukas Cechura & Matej Opatrny & Zuzana Hlouskova & Iveta Mlezivova, 2022. "Assessment of the Impact of Agricultural Support on Crop Diversity," Working Papers IES 2022/32, Charles University Prague, Faculty of Social Sciences, Institute of Economic Studies, revised Dec 2022.
      • Zdeňka Žáková Kroupová & Lukáš Čechura & Matěj Opatrný & Zuzana Hloušková & Iveta Mlezivová, 2023. "Assessment of the impact of agricultural support on crop diversity," Agricultural Economics, Czech Academy of Agricultural Sciences, vol. 69(3), pages 89-100.
   2. Tianran Ding & Wouter Achten, 2023. "Coupling agent-based modeling with territorial LCA to support agricultural land-use planning," ULB Institutional Repository 2013/359527, ULB -- Universite Libre de Bruxelles.
   3. Wu, Chen-Fa & Wang, Hsiao-Hsuan & Chen, Szu-Hung & Trac, Luu Van Thong, 2024. "Assessing the efficiency of bird habitat conservation strategies in farmland ecosystems," Ecological Modelling, Elsevier, vol. 492(C).
   4. Kelemen, Eszter & Megyesi, Boldizsár & Matzdorf, Bettina & Andersen, Erling & van Bussel, Lenny G.J. & Dumortier, Myriam & Dutilly, Céline & García-Llorente, Marina & Hamon, Christine & LePage, Annabe, 2023. "The prospects of innovative agri-environmental contracts in the European policy context: Results from a Delphi study," Land Use Policy, Elsevier, vol. 131(C).
   5. José-Luis Alfaro-Navarro & María-Encarnación Andrés-Martínez, 2021. "A longitudinal and cross-sectional analysis of the distribution of Common Agricultural Policy aids in European countries," Agricultural Economics, Czech Academy of Agricultural Sciences, vol. 67(9), pages 351-362.

2. Sahrbacher, Amanda & Jordan Hristov, Jordan & Brady, Mark V., 2017. "A combined approach to assess the impacts of Ecological Focus Areas on regional structural development and agricultural land use," Review of Agricultural, Food and Environmental Studies, Institut National de la Recherche Agronomique (INRA), vol. 98(3), October.
   • Amanda Sahrbacher & Jordan Hristov & Mark V. Brady, 2017. "A combined approach to assess the impacts of Ecological Focus Areas on regional structural development and agricultural land use," Review of Agricultural, Food and Environmental Studies, Springer, vol. 98(3), pages 111-144, December.
   • Amanda Sahrbacher & Jordan Hristov & Mark V. Brady, 2017. "A combined approach to assess the impacts of EcologicalFocus Areas on regional structural developmentand agricultural land use," Review of Agricultural, Food and Environmental Studies, INRA Department of Economics, vol. 98(3), pages 111-144.

   Cited by:

   1. Hristov, Jordan & Clough, Yann & Sahlin, Ullrika & Smith, Henrik G. & Stjernman, Martin & Olsson, Ola & Sahrbacher, Amanda & Brady, Mark V., 2020. "Impacts of the EU's Common Agricultural Policy “Greening” reform on agricultural development, biodiversity, and ecosystem services," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 42(4), pages 716-738.
      • Jordan Hristov & Yann Clough & Ullrika Sahlin & Henrik G. Smith & Martin Stjernman & Ola Olsson & Amanda Sahrbacher & Mark V. Brady, 2020. "Impacts of the EU's Common Agricultural Policy “Greening” Reform on Agricultural Development, Biodiversity, and Ecosystem Services," Applied Economic Perspectives and Policy, John Wiley & Sons, vol. 42(4), pages 716-738, December.
   2. Stéphanie Barral & Cecile Detang-Dessendre, 2023. "Reforming the Common Agricultural Policy (2023–2027): multidisciplinary views," Review of Agricultural, Food and Environmental Studies, Springer, vol. 104(1), pages 47-50, March.

3. Christoph Sahrbacher & Amanda Sahrbacher & Alfons Balmann & Arlette Ostermeyer & Franziska Schoenau, 2012. "Capping Direct Payments in the CAP: Another Paper Tiger? Plafonnement des aides directes: simple tigre de papier? Kappung der Direktzahlungen: Noch ein Papiertiger?," EuroChoices, The Agricultural Economics Society, vol. 11(3), pages 10-15, December.

   Cited by:

   1. Appel, Franziska & Ostermeyer-Wiethaup, Arlette & Balmann, Alfons, 2015. "Effects of the Renewable Energy Act on structural change in Agriculture- The case of biogas," 2015 Conference, August 9-14, 2015, Milan, Italy 210956, International Association of Agricultural Economists.
   2. Balmann, Alfons & Sahrbacher, Christoph, 2014. "Structural Implications of First Hectare Payments and Young Farmer Support within the EU CAP Reform 2013: The German Case," 2014 International Congress, August 26-29, 2014, Ljubljana, Slovenia 183066, European Association of Agricultural Economists.

4. Uthes, Sandra & Piorr, Annette & Zander, Peter & Bienkowski, Jerzy & Ungaro, Fabrizio & Dalgaard, Tommy & Stolze, Matthias & Moschitz, Heidrun & Schader, Christian & Happe, Kathrin & Sahrbacher, Amand, 2011. "Regional impacts of abolishing direct payments: An integrated analysis in four European regions," Agricultural Systems, Elsevier, vol. 104(2), pages 110-121, February.

   Cited by:

   1. Appel, Franziska & Balmann, Alfons & Dong, Changxing & Rommel, Jens, 2018. "FarmAgriPoliS: An agricultural business management game for behavioral experiments, teaching, and gaming," IAMO Discussion Papers 173, Leibniz Institute of Agricultural Development in Transition Economies (IAMO).
      • Appel, Franziska & Balmann, Alfons & Dong, Changxing & Rommel, Jens, 2018. "FarmAgriPoliS: An agricultural business management game for behavioral experiments, teaching, and gaming," IAMO Discussion Papers 271455, Institute of Agricultural Development in Transition Economies (IAMO).
   2. Utomo, Dhanan Sarwo & Onggo, Bhakti Stephan & Eldridge, Stephen, 2018. "Applications of agent-based modelling and simulation in the agri-food supply chains," European Journal of Operational Research, Elsevier, vol. 269(3), pages 794-805.
   3. Fastelli, Laura & Landi, Chiara & Rovai, Massimo & Andreoli, Maria, 2017. "A spatial analysis of terrain features and farming styles in a disadvantaged area of Tuscany (Mugello): implications for the evaluation and the design of CAP payments," Bio-based and Applied Economics Journal, Italian Association of Agricultural and Applied Economics (AIEAA), vol. 6(1), May.
   4. Ciliberti, Stefano & Frascarelli, Angelo, 2015. "A critical assessment of the implementation of CAP 2014- 2020 direct payments in Italy," Bio-based and Applied Economics Journal, Italian Association of Agricultural and Applied Economics (AIEAA), vol. 4(3), pages 1-17, December.
   5. Happe, K. & Hutchings, N.J. & Dalgaard, T. & Kellerman, K., 2011. "Modelling the interactions between regional farming structure, nitrogen losses and environmental regulation," Agricultural Systems, Elsevier, vol. 104(3), pages 281-291, March.
   6. Appel, F. & Balmann, A., 2018. "Predator or prey? - Effects of fast-growing farms on their neighborhood," 2018 Conference, July 28-August 2, 2018, Vancouver, British Columbia 277358, International Association of Agricultural Economists.
   7. Marius Michels & Johannes Möllmann & Oliver Musshoff, 2020. "German Farmers’ Perspectives on Direct Payments in the Common Agricultural Policy," EuroChoices, The Agricultural Economics Society, vol. 19(1), pages 48-52, April.
   8. Bertolozzi-Caredio, Daniele & Bardají, Isabel & Garrido, Alberto & Berry, Robert & Bijttebier, Jo & Gavrilescu, Camelia & Harizanova, Hristina & Jendrzejewski, Błażej & Meuwissen, Miranda M.P. & Ollen, 2021. "Stakeholder perspectives to improve risk management in European farming systems," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 84, pages 147-161.
   9. Shyam Kumar Basnet & Torbjörn Jansson & Thomas Heckelei, 2021. "A Bayesian econometrics and risk programming approach for analysing the impact of decoupled payments in the European Union," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 65(3), pages 729-759, July.
      • Basnet, Shyam Kumar & Jansson , Torbjorn & Heckelei, Thomas, 2021. "A Bayesian econometrics and risk programming approach for analysing the impact of decoupled payments in the European Union," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 65(03), January.
   10. F. Střeleček & Daniel Kopta & Jana Lososová & Radek Zdeněk, 2012. "Economic results of agricultural enterprises in 2010," Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Mendel University Press, vol. 60(7), pages 315-328.
   11. Delmotte, Sylvestre & Barbier, Jean-Marc & Mouret, Jean-Claude & Le Page, Christophe & Wery, Jacques & Chauvelon, Phillipe & Sandoz, Alain & Lopez Ridaura, Santiago, 2016. "Participatory integrated assessment of scenarios for organic farming at different scales in Camargue, France," Agricultural Systems, Elsevier, vol. 143(C), pages 147-158.
   12. Eigner, Amanda E. & Nuppenau, Ernst-August, 2019. "Applied spatial approach of modelling field size changes based on a consideration of farm and landscape interrelations," Agricultural Systems, Elsevier, vol. 176(C).
   13. Svoboda, J. & Lososová, Jana & Zdeněk, R., 2015. "Analysis of Operating Costs of Subsidies in the Field of Agriculture of EU Countries," AGRIS on-line Papers in Economics and Informatics, Czech University of Life Sciences Prague, Faculty of Economics and Management, vol. 7(4), pages 1-13, December.
   14. Loizou, Efstratios & Karelakis, Christos & Galanopoulos, Konstantinos & Mattas, Konstadinos, 2019. "The role of agriculture as a development tool for a regional economy," Agricultural Systems, Elsevier, vol. 173(C), pages 482-490.

5. Uthes, Sandra & Sattler, Claudia & Zander, Peter & Piorr, Annette & Matzdorf, Bettina & Damgaard, Martin & Sahrbacher, Amanda & Schuler, Johannes & Kjeldsen, Chris & Heinrich, Uwe & Fischer, Holger, 2010. "Modeling a farm population to estimate on-farm compliance costs and environmental effects of a grassland extensification scheme at the regional scale," Agricultural Systems, Elsevier, vol. 103(5), pages 282-293, June.

   Cited by:

   1. Mack, Gabriele & Ritzel, Christian & Jan, Pierrick, 2020. "Determinants for the Implementation of Action-, Result- and Multi-Actor-Oriented Agri-Environment Schemes in Switzerland," Ecological Economics, Elsevier, vol. 176(C).
   2. Aurbacher, Joachim & Parker, Phillip S. & Calberto Sánchez, Germán A. & Steinbach, Jennifer & Reinmuth, Evelyn & Ingwersen, Joachim & Dabbert, Stephan, 2013. "Influence of climate change on short term management of field crops – A modelling approach," Agricultural Systems, Elsevier, vol. 119(C), pages 44-57.
   3. Britz, Wolfgang & Ciaian, Pavel & Gocht, Alexander & Kanellopoulos, Argyris & Kremmydas, Dimitrios & Müller, Marc & Petsakos, Athanasios & Reidsma, Pytrik, 2021. "A design for a generic and modular bio-economic farm model," Agricultural Systems, Elsevier, vol. 191(C).
   4. Kuhn, Till & Schäfer, David & Holm-Müller, Karin & Britz, Wolfgang, 2019. "On-farm compliance costs with the EU-Nitrates Directive: A modelling approach for specialized livestock production in northwest Germany," Agricultural Systems, Elsevier, vol. 173(C), pages 233-243.
   5. Mack, Gabriele & Huber, Robert, 2017. "On-farm compliance costs and N surplus reduction of mixed dairy farms under grassland-based feeding systems," Agricultural Systems, Elsevier, vol. 154(C), pages 34-44.
   6. Uthes, Sandra & Piorr, Annette & Zander, Peter & Bienkowski, Jerzy & Ungaro, Fabrizio & Dalgaard, Tommy & Stolze, Matthias & Moschitz, Heidrun & Schader, Christian & Happe, Kathrin & Sahrbacher, Amand, 2011. "Regional impacts of abolishing direct payments: An integrated analysis in four European regions," Agricultural Systems, Elsevier, vol. 104(2), pages 110-121, February.
   7. Dillis, Christopher & Biber, Eric & Bodwitch, Hekia & Butsic, Van & Carah, Jennifer & Parker-Shames, Phoebe & Polson, Michael & Grantham, Theodore, 2021. "Shifting geographies of legal cannabis production in California," Land Use Policy, Elsevier, vol. 105(C).
   8. Reidsma, Pytrik & Janssen, Sander & Jansen, Jacques & van Ittersum, Martin K., 2018. "On the development and use of farm models for policy impact assessment in the European Union – A review," Agricultural Systems, Elsevier, vol. 159(C), pages 111-125.

6. Kellermann, Konrad & Sahrbacher, Amanda & Sahrbacher, Christoph & Balmann, Alfons, 2009. "Consequences of a progressive reduction of direct payments in Germany: paving the way for post-2013?," German Journal of Agricultural Economics, Humboldt-Universitaet zu Berlin, Department for Agricultural Economics, vol. 58(04), pages 1-11, May.

   Cited by:

   1. Sahrbacher, Christoph, 2011. "Regional structural change in European agriculture: Effects of decoupling and EU accession," Studies on the Agricultural and Food Sector in Transition Economies, Leibniz Institute of Agricultural Development in Transition Economies (IAMO), volume 60, number 60.
   2. Sahrbacher, Amanda, 2012. "Impacts of CAP reforms on farm structures and performance disparities: An agent-based approach," Studies on the Agricultural and Food Sector in Transition Economies, Leibniz Institute of Agricultural Development in Transition Economies (IAMO), volume 65, number 65.

7. Happe, Kathrin & Damgaard, Martin & Osuch, Amanda & Sattler, Claudia & Zander, Peter & Uthes, Sandra & Schuler, Johannes & Piorr, Annette, 2006. "CAP-reform and the provision of non-commodity outputs in Brandenburg," German Journal of Agricultural Economics, Humboldt-Universitaet zu Berlin, Department for Agricultural Economics, vol. 55(05-06), pages 1-12.

   Cited by:

   1. A J Higgins & C J Miller & A A Archer & T Ton & C S Fletcher & R R J McAllister, 2010. "Challenges of operations research practice in agricultural value chains," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 61(6), pages 964-973, June.
   2. Uthes, Sandra & Sattler, Claudia & Zander, Peter & Piorr, Annette & Matzdorf, Bettina & Damgaard, Martin & Sahrbacher, Amanda & Schuler, Johannes & Kjeldsen, Chris & Heinrich, Uwe & Fischer, Holger, 2010. "Modeling a farm population to estimate on-farm compliance costs and environmental effects of a grassland extensification scheme at the regional scale," Agricultural Systems, Elsevier, vol. 103(5), pages 282-293, June.
   3. Sandrine Spaeter & François Cochard & Anne Rozan, 2006. "Prevention and Compensation of Muddy Flows: Some Economic Insights," Working Papers of BETA 2006-29, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
      • COCHARD François & ROZAN Anne & SPAETER Sandrine, 2006. "Prevention and Compensation of Muddy Flows: Some Economic Insights," LERNA Working Papers 06.24.217, LERNA, University of Toulouse.
   4. Sroka, Wojciech & Happe, Kathrin, 2009. "Förderung Der Entwicklung Des Ländlichen Raumes In Polen Und Bayern," IAMO Discussion Papers 91904, Institute of Agricultural Development in Transition Economies (IAMO).
   5. Schnicke, Hauke Joachim & Happe, Kathrin & Sahrbacher, Christoph, 2007. "Structural Change And Farm Labour Adjustments In A Dualistic Farm Structure: A Simulation Study For The Region Nitra In Southwest Slovakia," IAMO Discussion Papers 91736, Institute of Agricultural Development in Transition Economies (IAMO).
   6. Happe, Kathrin & Kellermann, Konrad, 2007. "DIESE MODELLE SIND ZU KOMPLEX!-ODER DOCH NICHT?: EXPERIMENTELLES DESIGN UND METAMODELLIERUNG ALS MOGLICHER WEG, DAS KOMMUNIKATIONSPROBLEM AGENTENBASIERTER MODELLE IN DER POLITIKANALYSE ZU LOSEN (Germa," 47th Annual Conference, Weihenstephan, Germany, September 26-28, 2007 7613, German Association of Agricultural Economists (GEWISOLA).
   7. Sroka, Wojciech & Happe, Kathrin, 2009. "Förderung der Entwicklung des ländlichen Raumes in Polen und Bayern [Support programmes for rural development in Poland and Bavaria]," IAMO Discussion Papers 123, Leibniz Institute of Agricultural Development in Transition Economies (IAMO).
   8. Uthes, Sandra & Fricke, Katharina & König, Hannes & Zander, Peter & van Ittersum, Martin & Sieber, Stefan & Helming, Katharina & Piorr, Annette & Müller, Klaus, 2010. "Policy relevance of three integrated assessment tools—A comparison with specific reference to agricultural policies," Ecological Modelling, Elsevier, vol. 221(18), pages 2136-2152.

Books

1. Sahrbacher, Amanda, 2012. "Impacts of CAP reforms on farm structures and performance disparities: An agent-based approach," Studies on the Agricultural and Food Sector in Transition Economies, Leibniz Institute of Agricultural Development in Transition Economies (IAMO), volume 65, number 65.

   Cited by:

   1. Jitea, Ionel-Mugurel & Pocol, Christina Bianca, 2014. "The Impact of the Common Agricultural Policy on Romanian Farming Structures. Who are the Winners and who are the Losers?," 142nd Seminar, May 29-30, 2014, Budapest, Hungary 170799, European Association of Agricultural Economists.
   2. Ali Ferjani & Albert Zimmermann, 2013. "Modelling structural-change-related shifts in labour input in the agent-based sector model SWISSland," Journal of Socio-Economics in Agriculture (Until 2015: Yearbook of Socioeconomics in Agriculture), Swiss Society for Agricultural Economics and Rural Sociology, vol. 6(1), pages 177-200.
   3. Sahrbacher, Christoph & Ostermeyer, Arlette & Sahrbacher, Amanda, 2013. "Simulation Results of AgriPoliS about Diminishing Capital Subsidies and Restrictions," Working papers 157114, Factor Markets, Centre for European Policy Studies.
      • Sahrbacher, Christoph & Sahrbacher, Amanda & Ostermeyer, Arlette, 2013. "Simulation Results of AgriPoliS about Diminishing Capital Subsidies and Restrictions," Factor Markets Working Papers 167, Centre for European Policy Studies.
   4. Jitea, Ionel-Mugurel & Pocol, Cristina Bianca, 2014. "The Common Agricultural Policy and productivity gains in Romanian agriculture: is there any evidence of convergence to the Western European realities?," Studies in Agricultural Economics, Research Institute for Agricultural Economics, vol. 116(3), pages 1-3, December.

More information

Research fields, statistics, top rankings, if available.

Statistics

Access and download statistics for all items

Co-authorship network on CollEc

NEP Fields

NEP is an announcement service for new working papers, with a weekly report in each of many fields. This author has had 5 papers announced in NEP. These are the fields, ordered by number of announcements, along with their dates. If the author is listed in the directory of specialists for this field, a link is also provided.

1. NEP-AGR: Agricultural Economics (5) 2013-10-11 2014-08-20 2015-01-31 2016-05-08 2016-10-30. Author is listed
2. NEP-CMP: Computational Economics (3) 2013-10-11 2014-08-20 2016-05-08
3. NEP-ENV: Environmental Economics (2) 2016-05-08 2016-10-30
4. NEP-PKE: Post Keynesian Economics (1) 2016-05-08

Corrections

All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. For general information on how to correct material on RePEc, see these instructions.

To update listings or check citations waiting for approval, Amanda Sahrbacher should log into the RePEc Author Service.

To make corrections to the bibliographic information of a particular item, find the technical contact on the abstract page of that item. There, details are also given on how to add or correct references and citations.

To link different versions of the same work, where versions have a different title, use this form. Note that if the versions have a very similar title and are in the author's profile, the links will usually be created automatically.

Please note that most corrections can take a couple of weeks to filter through the various RePEc services.