Trade Reforms, Mark-Ups and Bargaining Power of Workers: the Case of Ethiopian Manufacturing Firms
Author
Abstract
Suggested Citation
DOI: 10.22004/ag.econ.259500
Download full text from publisher
References listed on IDEAS
- James R. Tybout, 2000.
"Manufacturing Firms in Developing Countries: How Well Do They Do, and Why?,"
Journal of Economic Literature, American Economic Association, vol. 38(1), pages 11-44, March.
- Tybout, James, 1998. "Manufacuring firms in developing countries - how well do they do, and why?," Policy Research Working Paper Series 1965, The World Bank.
- James Tybout, 1998. "Manufacturing Firms In Developing Countries: How Well Do They Do, And Why?," Development and Comp Systems 9805004, University Library of Munich, Germany.
- James Tybout, 1999. "Manufacturing Firms in Developing Countries: How Well Do They Do, and Why?," Development and Comp Systems 9906001, University Library of Munich, Germany, revised 10 Jun 1999.
- Greenaway, David & Hine, Robert C. & Wright, Peter, 1999. "An empirical assessment of the impact of trade on employment in the United Kingdom," European Journal of Political Economy, Elsevier, vol. 15(3), pages 485-500, September.
- Mezzetti, Claudio & Dinopoulos, Elias, 1991.
"Domestic unionization and import competition,"
Journal of International Economics, Elsevier, vol. 31(1-2), pages 79-100, August.
- Mezzetti, C. & Dinopoulos, E., 1989. "Domestic Unionization And Import Competition," Papers 337, California Davis - Institute of Governmental Affairs.
- Kornelius Kraft, 2006. "Wage versus efficient bargaining in oligopoly," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 27(7), pages 595-604.
- Sabien Dobbelaere & Jacques Mairesse, 2013.
"Panel data estimates of the production function and product and labor market imperfections,"
Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 28(1), pages 1-46, January.
- Dobbelaere, Sabien & Mairesse, Jacques, 2007. "Panel data estimates of the production function and product and labor market imperfections," Working Paper Series 782, European Central Bank.
- Sabien Dobbelaere & Jacques Mairesse, 2009. "Panel Data Estimates of the Production Function and Product and Labor Market Imperfections," Tinbergen Institute Discussion Papers 09-001/3, Tinbergen Institute.
- S. Dobbelaere & J. Mairesse, 2009. "Panel data estimates of the production function and product and labor market imperfections," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 09/586, Ghent University, Faculty of Economics and Business Administration.
- Sabien Dobbelaere & Jacques Mairesse, 2008. "Panel Data Estimates Of The Production Function And Product And Labor Market Imperfections," NBER Working Papers 13975, National Bureau of Economic Research, Inc.
- Dobbelaere, Sabien & Mairesse, Jacques, 2010. "Panel Data Estimates of the Production Function and Product and Labor Market Imperfections," IZA Discussion Papers 5176, Institute of Labor Economics (IZA).
- Marc J. Melitz, 2003.
"The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity,"
Econometrica, Econometric Society, vol. 71(6), pages 1695-1725, November.
- Mark J. Melitz, 2002. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," NBER Working Papers 8881, National Bureau of Economic Research, Inc.
- Melitz, Marc J, 2002. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," CEPR Discussion Papers 3381, C.E.P.R. Discussion Papers.
- Hoekman & Bernard & Winters, L. Alan, 2005.
"Trade and employment : stylized facts and research findings,"
Policy Research Working Paper Series
3676, The World Bank.
- Bernard Hoekman & Alan L. Winters, 2005. "Trade and Employment: Stylized Facts and Research Findings," Working Papers 7, United Nations, Department of Economics and Social Affairs.
- Olivier Blanchard & Francesco Giavazzi, 2003.
"Macroeconomic Effects of Regulation and Deregulation in Goods and Labor Markets,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 118(3), pages 879-907.
- Olivier Blanchard & Francesco Giavazzi, "undated". "Macroeconomic effects of regulation and deregulation in goods and labor markets," Working Papers 187, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
- Olivier Blanchard & Francesco Giavazzi, 2001. "Macroeconomic Effects of Regulation and Deregulation in Goods and Labor Markets," NBER Working Papers 8120, National Bureau of Economic Research, Inc.
- Blanchard, Olivier & Giavazzi, Francesco, 2001. "Macroeconomic Effects of Regulation and Deregulation in Goods and Labour Markets," CEPR Discussion Papers 2713, C.E.P.R. Discussion Papers.
- Hervé Boulhol & Sabien Dobbelaere & Sara Maioli, 2011.
"Imports as Product and Labour Market Discipline,"
British Journal of Industrial Relations, London School of Economics, vol. 49(2), pages 331-361, June.
- Boulhol, Hervé & Dobbelaere, Sabien & Maioli, Sara, 2006. "Imports as Product and Labor Market Discipline," IZA Discussion Papers 2178, Institute of Labor Economics (IZA).
- Hervé Boulhol & Sabien Dobbelaere & Sara Maioli, 2009. "Imports as Product and Labour Market Discipline," Tinbergen Institute Discussion Papers 09-002/3, Tinbergen Institute.
- H. Boulhol & S. Dobbelaere & S. Maioli, 2007. "Imports as product and labour market discipline," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 07/479, Ghent University, Faculty of Economics and Business Administration.
- Maarten Goos & Jozef Konings, 2001.
"Does Rent-Sharing Exist in Belgium ?. An Empirical Analysis Using Firm Level Data,"
Reflets et perspectives de la vie économique, De Boeck Université, vol. 0(1), pages 65-79.
- Maarten Goos & Jozef Konings, 2000. "Does Rent-Sharing Exist in Belgium? an Empirical Analysis Using Firm Level Data," Working Papers of Department of Economics, Leuven ces0019, KU Leuven, Faculty of Economics and Business (FEB), Department of Economics, Leuven.
- Lourdes Moreno & Diego Rodríguez, 2011.
"Markups, Bargaining Power and Offshoring: An Empirical Assessment-super-1,"
The World Economy, Wiley Blackwell, vol. 34(9), pages 1593-1627, September.
- Moreno, L & Rodríguez, D, 2010. "Markups, bargaining power and offshoring: an empirical assessment," MPRA Paper 23587, University Library of Munich, Germany.
- Lourdes Moreno & Diego Rodríguez, 2010. "Markups, bargaining power and offshoring: An empirical assessment," Working Papers 10-05, Asociación Española de Economía y Finanzas Internacionales.
- T. Fisher & D. Wright, 1999. "Unionized Oligopoly and Trade Liberalization," Canadian Journal of Economics, Canadian Economics Association, vol. 32(3), pages 799-816, May.
- Olley, G Steven & Pakes, Ariel, 1996.
"The Dynamics of Productivity in the Telecommunications Equipment Industry,"
Econometrica, Econometric Society, vol. 64(6), pages 1263-1297, November.
- George S Olley & Ariel Pakes, 1992. "The Dynamics Of Productivity In The Telecommunications Equipment Industry," Working Papers 92-2, Center for Economic Studies, U.S. Census Bureau.
- G. Steven Olley & Ariel Pakes, 1992. "The Dynamics of Productivity in the Telecommunications Equipment Industry," NBER Working Papers 3977, National Bureau of Economic Research, Inc.
- Ms. Prachi Mishra & Mr. Utsav Kumar, 2005. "Trade Liberalization and Wage Inequality: Evidence From India," IMF Working Papers 2005/020, International Monetary Fund.
- Filip Abraham & Jozef Konings & Stijn Vanormelingen, 2009. "The effect of globalization on union bargaining and price-cost margins of firms," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 145(1), pages 13-36, April.
- Roeger, Werner, 1995. "Can Imperfect Competition Explain the Difference between Primal and Dual Productivity Measures? Estimates for U.S. Manufacturing," Journal of Political Economy, University of Chicago Press, vol. 103(2), pages 316-330, April.
- Dobbelaere, Sabien, 2004. "Estimation of price-cost margins and union bargaining power for Belgian manufacturing," International Journal of Industrial Organization, Elsevier, vol. 22(10), pages 1381-1398, December.
- Richard Blundell & Stephen Bond, 2000.
"GMM Estimation with persistent panel data: an application to production functions,"
Econometric Reviews, Taylor & Francis Journals, vol. 19(3), pages 321-340.
- Richard Blundell & Stephen Bond, 1999. "GMM estimation with persistent panel data: an application to production functions," IFS Working Papers W99/04, Institute for Fiscal Studies.
- Slaughter, Matthew J., 2001. "International trade and labor-demand elasticities," Journal of International Economics, Elsevier, vol. 54(1), pages 27-56, June.
- Okten, Cagla & Arin, K. Peren, 2006. "The Effects of Privatization on Efficiency: How Does Privatization Work?," World Development, Elsevier, vol. 34(9), pages 1537-1556, September.
- David G. Blanchflower & Andrew J. Oswald & Peter Sanfey, 1996.
"Wages, Profits, and Rent-Sharing,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 111(1), pages 227-251.
- David G. Blanchflower & Andrew J. Oswald & Peter Sanfey, 1992. "Wages, Profits and Rent-Sharing," NBER Working Papers 4222, National Bureau of Economic Research, Inc.
- repec:bla:scandj:v:95:y:1993:i:2:p:249-55 is not listed on IDEAS
- Zadia M. Feliciano, 2001. "Workers and Trade Liberalization: The Impact of Trade Reforms in Mexico on Wages and Employment," ILR Review, Cornell University, ILR School, vol. 55(1), pages 95-115, October.
- Antonia López Villa Vicencio & Julio López Gallardo, 2006. "Manufacturing real wages in Mexico," Brazilian Journal of Political Economy, Center of Political Economy, vol. 26(3), pages 459-474.
- Bishwanath GOLDAR & Suresh Chand AGGARWAL, 2005. "Trade Liberalization And Price-Cost Margin In Indian Industries," The Developing Economies, Institute of Developing Economies, vol. 43(3), pages 346-373, September.
- Toke Aidt & Zafiris Tzannatos, 2002. "Unions and Collective Bargaining : Economic Effects in a Global Environment," World Bank Publications - Books, The World Bank Group, number 15241.
- Hall, Robert E, 1988.
"The Relation between Price and Marginal Cost in U.S. Industry,"
Journal of Political Economy, University of Chicago Press, vol. 96(5), pages 921-947, October.
- Robert E. Hall, 1986. "The Relation Between Price and Marginal Cost in U.S. Industry," NBER Working Papers 1785, National Bureau of Economic Research, Inc.
- Huizinga, H.P., 1993. "International market integration and union wage bargaining," Other publications TiSEM 567712dd-8f03-40d8-8428-c, Tilburg University, School of Economics and Management.
- Ellen Brock & Sabien Dobbelaere, 2006.
"Has International Trade Affected Workers’ Bargaining Power?,"
Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 142(2), pages 233-266, July.
- Ellen Brock & Sabien Dobbelaere, 2003. "Has International Trade Affected Workers' Bargaining Power?," Working Papers of Department of Economics, Leuven 500377, KU Leuven, Faculty of Economics and Business (FEB), Department of Economics, Leuven.
- Baltagi, Badi H. & Wu, Ping X., 1999. "Unequally Spaced Panel Data Regressions With Ar(1) Disturbances," Econometric Theory, Cambridge University Press, vol. 15(6), pages 814-823, December.
- Windmeijer, Frank, 2005. "A finite sample correction for the variance of linear efficient two-step GMM estimators," Journal of Econometrics, Elsevier, vol. 126(1), pages 25-51, May.
- Nina Pavcnik & Andreas Blom & Pinelopi Goldberg & Norbert Schady, 2004. "Trade Liberalization and Industry Wage Structure: Evidence from Brazil," The World Bank Economic Review, World Bank, vol. 18(3), pages 319-344.
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.- Ana Cristina Soares, 2020.
"Price-cost margin and bargaining power in the European Union,"
Empirical Economics, Springer, vol. 59(5), pages 2093-2123, November.
- Soares, Ana Cristina, 2019. "Price-cost margin and bargaining power in the European Union," IWH-CompNet Discussion Papers 4/2019, Halle Institute for Economic Research (IWH).
- Dobbelaere, Sabien & Mairesse, Jacques, 2018.
"Comparing micro-evidence on rent sharing from two different econometric models,"
Labour Economics, Elsevier, vol. 52(C), pages 18-26.
- Dobbelaere, Sabien & Mairesse, Jacques, 2017. "Comparing Micro-Evidence on Rent Sharing from Two Different Econometric Models," IZA Discussion Papers 11156, Institute of Labor Economics (IZA).
- Sabien (S.) Dobbelaere & Jacques Mairesse, 2017. "Comparing micro-evidence on rent sharing from two different econometric models," Tinbergen Institute Discussion Papers 17-112/V, Tinbergen Institute.
- Lourdes Moreno & Diego Rodríguez, 2011.
"Markups, Bargaining Power and Offshoring: An Empirical Assessment-super-1,"
The World Economy, Wiley Blackwell, vol. 34(9), pages 1593-1627, September.
- Moreno, L & Rodríguez, D, 2010. "Markups, bargaining power and offshoring: an empirical assessment," MPRA Paper 23587, University Library of Munich, Germany.
- Lourdes Moreno & Diego Rodríguez, 2010. "Markups, bargaining power and offshoring: An empirical assessment," Working Papers 10-05, Asociación Española de Economía y Finanzas Internacionales.
- Dobbelaere, Sabien & Kiyota, Kozo & Mairesse, Jacques, 2015.
"Product and labor market imperfections and scale economies: Micro-evidence on France, Japan and the Netherlands,"
Journal of Comparative Economics, Elsevier, vol. 43(2), pages 290-322.
- Sabien DOBBELAERE & KIYOTA Kozo & Jacques MAIRESSE, 2012. "Product and Labor Market Imperfections and Scale Economies: Micro-evidence on France, Japan and the Netherlands," Discussion papers 12020, Research Institute of Economy, Trade and Industry (RIETI).
- Sabien Dobbelaere & Kozo Kiyota & Jacques Mairesse, 2013. "Product and labor market imperfections and scale economies: Micro-evidence on France, Japan and the Netherlands," NBER Working Papers 19059, National Bureau of Economic Research, Inc.
- Sabien Dobbelaere & Kozo Kiyota & Jacques Mairesse, 2013. "Product and Labor Market Imperfections and Scale Economies: Micro-Evidence on France, Japan and the Netherlands," Tinbergen Institute Discussion Papers 13-037/VII, Tinbergen Institute.
- Dobbelaere, Sabien & Kiyota, Kozo & Mairesse, Jacques, 2013. "Product and Labor Market Imperfections and Scale Economies: Micro-Evidence on France, Japan and the Netherlands," IZA Discussion Papers 7253, Institute of Labor Economics (IZA).
- Ana Cristina Soares & João Amador, 2013.
"Competition in the portuguese economy: Estimated price-cost margins under imperfect labour markets,"
Working Papers
w201308, Banco de Portugal, Economics and Research Department.
- Amador, João & Soares, Ana Cristina, 2014. "Competition in the Portuguese economy: estimated price-cost margins under imperfect labour markets," Working Paper Series 1751, European Central Bank.
- Philip Du Caju & François Rycx & Ilan Tojerow, 2011.
"Wage Structure Effects of International Trade: Evidence from a Small Open Economy,"
Working Papers CEB
11-011, ULB -- Universite Libre de Bruxelles.
- Du Caju, Philip & Rycx, François & Tojerow, Ilan, 2011. "Wage Structure Effects of International Trade: Evidence from a Small Open Economy," IZA Discussion Papers 5597, Institute of Labor Economics (IZA).
- Du Caju, Philip & Rycx, François & Tojerow, Ilan, 2011. "Wage structure effects of international trade: evidence from a small open economy," Working Paper Series 1325, European Central Bank.
- Philip Du Caju & François Rycx & Ilan Tojerow, 2011. "Wage structure effects of international trade: Evidence from a small open economy," Working Paper Research 214, National Bank of Belgium.
- Philip Du Caju & François Rycx & Ilan Tojerow, 2012.
"Wage structure effects of international trade in a small open economy: the case of Belgium,"
Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 148(2), pages 297-331, June.
- Philip Du Caju & François Rycx & Ilan Tojerow, 2012. "Wage structure effects of international trade in a small open economy: The case of Belgium," ULB Institutional Repository 2013/138896, ULB -- Universite Libre de Bruxelles.
- Hervé Boulhol & Sabien Dobbelaere & Sara Maioli, 2011.
"Imports as Product and Labour Market Discipline,"
British Journal of Industrial Relations, London School of Economics, vol. 49(2), pages 331-361, June.
- Boulhol, Hervé & Dobbelaere, Sabien & Maioli, Sara, 2006. "Imports as Product and Labor Market Discipline," IZA Discussion Papers 2178, Institute of Labor Economics (IZA).
- Hervé Boulhol & Sabien Dobbelaere & Sara Maioli, 2009. "Imports as Product and Labour Market Discipline," Tinbergen Institute Discussion Papers 09-002/3, Tinbergen Institute.
- H. Boulhol & S. Dobbelaere & S. Maioli, 2007. "Imports as product and labour market discipline," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 07/479, Ghent University, Faculty of Economics and Business Administration.
- Sabien Dobbelaere & Jacques Mairesse, 2010.
"Comparing Micro-evidence on Rent Sharing from Three Different Approaches,"
NBER Working Papers
16220, National Bureau of Economic Research, Inc.
- Dobbelaere, Sabien & Mairesse, Jacques, 2015. "Comparing micro-evidence on rent sharing from three different approaches," MERIT Working Papers 2015-029, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT).
- Sabien Dobbelaere & Jacques Mairesse, 2015. "Comparing Micro-Evidence on Rent Sharing from Three Different Approaches," Tinbergen Institute Discussion Papers 15-068/VII, Tinbergen Institute.
- Dobbelaere, Sabien & Mairesse, Jacques, 2015. "Comparing Micro-Evidence on Rent Sharing from Three Different Approaches," IZA Discussion Papers 9124, Institute of Labor Economics (IZA).
- Sabien Dobbelaere & Jacques Mairesse, 2013.
"Panel data estimates of the production function and product and labor market imperfections,"
Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 28(1), pages 1-46, January.
- Dobbelaere, Sabien & Mairesse, Jacques, 2007. "Panel data estimates of the production function and product and labor market imperfections," Working Paper Series 782, European Central Bank.
- S. Dobbelaere & J. Mairesse, 2009. "Panel data estimates of the production function and product and labor market imperfections," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 09/586, Ghent University, Faculty of Economics and Business Administration.
- Sabien Dobbelaere & Jacques Mairesse, 2009. "Panel Data Estimates of the Production Function and Product and Labor Market Imperfections," Tinbergen Institute Discussion Papers 09-001/3, Tinbergen Institute.
- Sabien Dobbelaere & Jacques Mairesse, 2008. "Panel Data Estimates Of The Production Function And Product And Labor Market Imperfections," NBER Working Papers 13975, National Bureau of Economic Research, Inc.
- Dobbelaere, Sabien & Mairesse, Jacques, 2010. "Panel Data Estimates of the Production Function and Product and Labor Market Imperfections," IZA Discussion Papers 5176, Institute of Labor Economics (IZA).
- João Amador & Ana Cristina Soares, 2017. "Markups and bargaining power in tradable and non-tradable sectors," Empirical Economics, Springer, vol. 53(2), pages 669-694, September.
- Dobbelaere, Sabien & Kiyota, Kozo, 2018.
"Labor market imperfections, markups and productivity in multinationals and exporters,"
Labour Economics, Elsevier, vol. 53(C), pages 198-212.
- Sabien Dobbelaere & Kozo Kiyota, 2017. "Labor market imperfections, markups and productivity in multinationals and exporters," Tinbergen Institute Discussion Papers 17-113/V, Tinbergen Institute.
- Sabien DOBBELAERE & KIYOTA Kozo, 2018. "Labor Market Imperfections, Markups, and Productivity in Multinationals and Exporters," Discussion papers 18033, Research Institute of Economy, Trade and Industry (RIETI).
- Dobbelaere, Sabien & Kiyota, Kozo, 2017. "Labor Market Imperfections, Markups and Productivity in Multinationals and Exporters," IZA Discussion Papers 11225, Institute of Labor Economics (IZA).
- Pal, Rupayan & Rathore, Udayan, 2016.
"Estimating workers’ bargaining power and firms’ markup in India: Implications of reforms and labour regulations,"
Journal of Policy Modeling, Elsevier, vol. 38(6), pages 1118-1135.
- Rupayan Pal & Udayan Rathore, 2014. "Estimating workers bargaining power and firms markup in India: Implications of reforms and labour regulations," Indira Gandhi Institute of Development Research, Mumbai Working Papers 2014-037, Indira Gandhi Institute of Development Research, Mumbai, India.
- Filip Abraham & Jozef Konings & Stijn Vanormelingen, 2009. "The effect of globalization on union bargaining and price-cost margins of firms," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 145(1), pages 13-36, April.
- Amoroso, S., 2013. "Heterogeneity of innovative, collaborative, and productive firm-level processes," Other publications TiSEM f5784a49-7053-401d-855d-1, Tilburg University, School of Economics and Management.
- Sabien Dobbelaere & Mark Vancauteren, 2014. "Market imperfections, skills and total factor productivity : Firm-level evidence on Belgium and the Netherlands," Working Paper Research 267, National Bank of Belgium.
- Dumont, Michel & Rayp, Glenn & Willemé, Peter, 2012. "The bargaining position of low-skilled and high-skilled workers in a globalising world," Labour Economics, Elsevier, vol. 19(3), pages 312-319.
- Filip Abraham & Jozef Konings & Stijn Vanormelingen, 2006. "Price and wage setting in an integrating Europe : firm level evidence," Working Paper Research 93, National Bank of Belgium.
- Carlos Figueira & Ricardo Pinheiro-Alves, 2023. "Evolution of price-cost margins during the troika intervention," Portuguese Economic Journal, Springer;Instituto Superior de Economia e Gestao, vol. 22(3), pages 315-351, September.
- Sara Amoroso & Bertrand Melenberg & Joseph Plasmans & Mark Vancauteren, 2015. "Productivity, Price- and Wage-Markups: An Empirical Analysis of the Dutch Manufacturing Industry," CESifo Working Paper Series 5273, CESifo.
More about this item
Keywords
International Relations/Trade;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:ags:eeaeje:259500. 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: AgEcon Search (email available below). General contact details of provider: https://edirc.repec.org/data/eeaa2ea.html .
Please note that corrections may take a couple of weeks to filter through the various RePEc services.