IDEAS home Printed from https://ideas.repec.org/a/eee/inecon/v145y2023ics0022199623001149.html
   My bibliography  Save this article

Robots, tasks, and trade

Author

Listed:
  • Artuc, Erhan
  • Bastos, Paulo
  • Rijkers, Bob

Abstract

We examine the effects of robotization on North–South trade patterns, wages and welfare. The empirical analysis uses ordinary least squares and instrumental-variable regressions exploiting variation in exposure to robots across countries and sectors. Both reveal that greater robot intensity in own production leads to: (i) a rise in imports sourced from less developed countries in the same industry; and (ii) an even stronger increase in exports to those countries. To explain these findings we develop a stylized Ricardian model featuring two-stage production and trade in intermediate and final goods in which robots can take over some tasks previously performed by humans in a subset of industries. An increase in robot adoption in the North impacts trade in final and intermediate goods with the South, as well as wages and welfare.

Suggested Citation

  • Artuc, Erhan & Bastos, Paulo & Rijkers, Bob, 2023. "Robots, tasks, and trade," Journal of International Economics, Elsevier, vol. 145(C).
  • Handle: RePEc:eee:inecon:v:145:y:2023:i:c:s0022199623001149
    DOI: 10.1016/j.jinteco.2023.103828
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0022199623001149
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.jinteco.2023.103828?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to look for a different version below or search for a different version of it.

    Other versions of this item:

    References listed on IDEAS

    as
    1. Paulo Bastos & Daniel A. Dias & Olga A. Timoshenko, 2018. "Learning, prices and firm dynamics," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 51(4), pages 1257-1311, November.
    2. Dave Donaldson, 2018. "Railroads of the Raj: Estimating the Impact of Transportation Infrastructure," American Economic Review, American Economic Association, vol. 108(4-5), pages 899-934, April.
    3. Jonathan Eaton & Samuel Kortum, 2012. "Putting Ricardo to Work," Journal of Economic Perspectives, American Economic Association, vol. 26(2), pages 65-90, Spring.
    4. Anders Akerman & Ingvil Gaarder & Magne Mogstad, 2015. "The Skill Complementarity of Broadband Internet," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 130(4), pages 1781-1824.
    5. Simonovska, Ina & Waugh, Michael E., 2014. "The elasticity of trade: Estimates and evidence," Journal of International Economics, Elsevier, vol. 92(1), pages 34-50.
    6. Lorenzo Caliendo & Luca David Opromolla & Fernando Parro & Alessandro Sforza, 2021. "Goods and Factor Market Integration: A Quantitative Assessment of the EU Enlargement," Journal of Political Economy, University of Chicago Press, vol. 129(12), pages 3491-3545.
    7. Daron Acemoglu & Pascual Restrepo, 2018. "Artificial Intelligence, Automation, and Work," NBER Chapters, in: The Economics of Artificial Intelligence: An Agenda, pages 197-236, National Bureau of Economic Research, Inc.
    8. Daron Acemoglu & Pascual Restrepo, 2018. "Low-Skill and High-Skill Automation," Journal of Human Capital, University of Chicago Press, vol. 12(2), pages 204-232.
    9. Adriana D. Kugler & Maurice Kugler & Laura Ripani & Rodimiro Rodrigo, 2020. "U.S. Robots and their Impacts in the Tropics: Evidence from Colombian Labor Markets," NBER Working Papers 28034, National Bureau of Economic Research, Inc.
    10. Arnaud Costinot & Iván Werning, 2023. "Robots, Trade, and Luddism: A Sufficient Statistic Approach to Optimal Technology Regulation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 90(5), pages 2261-2291.
    11. Bastos, Paulo & Silva, Joana, 2010. "The quality of a firm's exports: Where you export to matters," Journal of International Economics, Elsevier, vol. 82(2), pages 99-111, November.
    12. David H. Autor & Frank Levy & Richard J. Murnane, 2003. "The skill content of recent technological change: an empirical exploration," Proceedings, Federal Reserve Bank of San Francisco, issue Nov.
    13. Nicholas Bloom & Mirko Draca & John Van Reenen, 2016. "Trade Induced Technical Change? The Impact of Chinese Imports on Innovation, IT and Productivity," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 83(1), pages 87-117.
    14. David H. Autor & David Dorn & Gordon H. Hanson, 2015. "Untangling Trade and Technology: Evidence from Local Labour Markets," Economic Journal, Royal Economic Society, vol. 0(584), pages 621-646, May.
    15. Fally, Thibault & Hillberry, Russell, 2018. "A Coasian model of international production chains," Journal of International Economics, Elsevier, vol. 114(C), pages 299-315.
    16. Gene M. Grossman & Esteban Rossi-Hansberg, 2008. "Trading Tasks: A Simple Theory of Offshoring," American Economic Review, American Economic Association, vol. 98(5), pages 1978-1997, December.
    17. Erhan Artuc & Luc Christiaensen & Hernan Winkler, 2019. "Does Automation in Rich Countries Hurt Developing Ones? Evidence from the U.S. and Mexico," World Bank Publications - Reports 31425, The World Bank Group.
    18. Daron Acemoglu & Pascual Restrepo, 2020. "Robots and Jobs: Evidence from US Labor Markets," Journal of Political Economy, University of Chicago Press, vol. 128(6), pages 2188-2244.
    19. Gaulier, Guillaume & Zignago, Soledad, 2004. "Notes on BACI (analytical database of international trade). 1989-2002 version," MPRA Paper 32401, University Library of Munich, Germany.
    20. Eric A. Verhoogen, 2008. "Trade, Quality Upgrading, and Wage Inequality in the Mexican Manufacturing Sector," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 123(2), pages 489-530.
    21. Chor, Davin, 2010. "Unpacking sources of comparative advantage: A quantitative approach," Journal of International Economics, Elsevier, vol. 82(2), pages 152-167, November.
    22. David Autor & David Dorn & Gordon H. Hanson & Gary Pisano & Pian Shu, 2020. "Foreign Competition and Domestic Innovation: Evidence from US Patents," American Economic Review: Insights, American Economic Association, vol. 2(3), pages 357-374, September.
    23. Krenz, Astrid & Prettner, Klaus & Strulik, Holger, 2021. "Robots, reshoring, and the lot of low-skilled workers," European Economic Review, Elsevier, vol. 136(C).
    24. Impullitti, Giammario & Akcigit, Ufuk & Ates, Sina T., 2018. "Innovation and Trade Policy in a Globalized World," CEPR Discussion Papers 15804, C.E.P.R. Discussion Papers.
    25. Lee, Eunhee & Yi, Kei-Mu, 2018. "Global value chains and inequality with endogenous labor supply," Journal of International Economics, Elsevier, vol. 115(C), pages 223-241.
    26. Daron Acemoglu & Pascual Restrepo, 2022. "Demographics and Automation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 89(1), pages 1-44.
    27. Robert Dekle & Jonathan Eaton & Samuel Kortum, 2008. "Global Rebalancing with Gravity: Measuring the Burden of Adjustment," IMF Staff Papers, Palgrave Macmillan, vol. 55(3), pages 511-540, July.
    28. Lorenzo Caliendo & Fernando Parro, 2015. "Estimates of the Trade and Welfare Effects of NAFTA," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 82(1), pages 1-44.
    29. Dani Rodrik, 2018. "New Technologies, Global Value Chains, and Developing Economies," NBER Working Papers 25164, National Bureau of Economic Research, Inc.
    30. Paula Bustos, 2011. "Trade Liberalization, Exports, and Technology Upgrading: Evidence on the Impact of MERCOSUR on Argentinian Firms," American Economic Review, American Economic Association, vol. 101(1), pages 304-340, February.
    31. Artuç, Erhan & McLaren, John, 2015. "Trade policy and wage inequality: A structural analysis with occupational and sectoral mobility," Journal of International Economics, Elsevier, vol. 97(2), pages 278-294.
    32. Maarten Goos & Alan Manning, 2007. "Lousy and Lovely Jobs: The Rising Polarization of Work in Britain," The Review of Economics and Statistics, MIT Press, vol. 89(1), pages 118-133, February.
    33. Faber, Marius, 2020. "Robots and reshoring: Evidence from Mexican labor markets," Journal of International Economics, Elsevier, vol. 127(C).
    34. Carbonero, Francesco. & Ernst, Ekkehard & Weber, Enzo., 2018. "Robots worldwide the impact of automation on employment and trade," ILO Working Papers 995008793402676, International Labour Organization.
    35. Pierce, Justin R. & Schott, Peter K., 2018. "Investment responses to trade liberalization: Evidence from U.S. industries and establishments," Journal of International Economics, Elsevier, vol. 115(C), pages 203-222.
    36. Ariel Burstein & Jonathan Vogel, 2017. "International Trade, Technology, and the Skill Premium," Journal of Political Economy, University of Chicago Press, vol. 125(5), pages 1356-1412.
    37. Francisco J. Buera & Ezra Oberfield, 2020. "The Global Diffusion of Ideas," Econometrica, Econometric Society, vol. 88(1), pages 83-114, January.
    38. Pol Antràs & Davin Chor, 2013. "Organizing the Global Value Chain," Econometrica, Econometric Society, vol. 81(6), pages 2127-2204, November.
    39. Ariel Burstein & Eduardo Morales & Jonathan Vogel, 2019. "Changes in Between-Group Inequality: Computers, Occupations, and International Trade," American Economic Journal: Macroeconomics, American Economic Association, vol. 11(2), pages 348-400, April.
    40. Georg Graetz & Guy Michaels, 2018. "Robots at Work," The Review of Economics and Statistics, MIT Press, vol. 100(5), pages 753-768, December.
    41. Paulo Bastos & Joana Silva & Eric Verhoogen, 2018. "Export Destinations and Input Prices," American Economic Review, American Economic Association, vol. 108(2), pages 353-392, February.
    42. Lorenzo Caliendo & Maximiliano Dvorkin & Fernando Parro, 2019. "Trade and Labor Market Dynamics: General Equilibrium Analysis of the China Trade Shock," Econometrica, Econometric Society, vol. 87(3), pages 741-835, May.
    43. Pol Antràs & Alonso de Gortari, 2020. "On the Geography of Global Value Chains," Econometrica, Econometric Society, vol. 88(4), pages 1553-1598, July.
    44. Robert C. Feenstra & Gordon H. Hanson, 1999. "The Impact of Outsourcing and High-Technology Capital on Wages: Estimates For the United States, 1979–1990," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 114(3), pages 907-940.
    45. Paulo Guimarães & Pedro Portugal, 2010. "A simple feasible procedure to fit models with high-dimensional fixed effects," Stata Journal, StataCorp LP, vol. 10(4), pages 628-649, December.
    46. Esther Ann Bøler & Andreas Moxnes & Karen Helene Ulltveit-Moe, 2015. "R&D, International Sourcing, and the Joint Impact on Firm Performance," American Economic Review, American Economic Association, vol. 105(12), pages 3704-3739, December.
    47. Natalia Ramondo & Andrés Rodríguez-Clare, 2013. "Trade, Multinational Production, and the Gains from Openness," Journal of Political Economy, University of Chicago Press, vol. 121(2), pages 273-322.
    48. Teresa C. Fort, 2017. "Technology and Production Fragmentation: Domestic versus Foreign Sourcing," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 84(2), pages 650-687.
    49. Daron Acemoglu & Pascual Restrepo, 2018. "Artificial Intelligence, Automation and Work," Boston University - Department of Economics - Working Papers Series dp-298, Boston University - Department of Economics.
    50. Ariel Burstein & Javier Cravino & Jonathan Vogel, 2013. "Importing Skill-Biased Technology," American Economic Journal: Macroeconomics, American Economic Association, vol. 5(2), pages 32-71, April.
    51. Kei-Mu Yi, 2003. "Can Vertical Specialization Explain the Growth of World Trade?," Journal of Political Economy, University of Chicago Press, vol. 111(1), pages 52-102, February.
    52. David Atkin & Amit K. Khandelwal & Adam Osman, 2017. "Exporting and Firm Performance: Evidence from a Randomized Experiment," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 132(2), pages 551-615.
    53. Michael E. Waugh, 2010. "International Trade and Income Differences," American Economic Review, American Economic Association, vol. 100(5), pages 2093-2124, December.
    54. Jonathan Eaton & Samuel Kortum, 2002. "Technology, Geography, and Trade," Econometrica, Econometric Society, vol. 70(5), pages 1741-1779, September.
    55. Ana Cecília Fieler, 2011. "Nonhomotheticity and Bilateral Trade: Evidence and a Quantitative Explanation," Econometrica, Econometric Society, vol. 79(4), pages 1069-1101, July.
    56. Alla Lileeva & Daniel Trefler, 2010. "Improved Access to Foreign Markets Raises Plant-level Productivity…For Some Plants," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 125(3), pages 1051-1099.
    57. Artuc, Erhan & Christiaensen, Luc & Winkler, Hernan, 2019. "Does Automatization in Rich Countries hurt Developing Ones? Evidence from the US and Mexico," Jobs Group Papers, Notes, and Guides 30834024, The World Bank.
    58. Peter K. Schott, 2004. "Across-Product Versus Within-Product Specialization in International Trade," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 119(2), pages 647-678.
    59. Kei-Mu Yi, 2010. "Can Multistage Production Explain the Home Bias in Trade?," American Economic Review, American Economic Association, vol. 100(1), pages 364-393, March.
    60. Katherine Stapleton & Michael Webb, 2020. "Automation, trade and multinational activity: Micro evidence from Spain," CSAE Working Paper Series 2020-16, Centre for the Study of African Economies, University of Oxford.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Erhan Artuc & Luc Christiaensen & Hernan Winkler, 2019. "Does Automation in Rich Countries Hurt Developing Ones? Evidence from the U.S. and Mexico," World Bank Publications - Reports 31425, The World Bank Group.
    2. Gravina, Antonio Francesco & Foster-McGregor, Neil, 2020. "Automation, globalisation and relative wages: An empirical analysis of winners and losers," MERIT Working Papers 2020-040, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT).
    3. Brambilla, Irene & César, Andrés & Falcone, Guillermo & Gasparini, Leonardo, 2023. "The impact of robots in Latin America: Evidence from local labor markets," World Development, Elsevier, vol. 170(C).
    4. Stemmler, Henry, 2019. "Does automation lead to de-industrialization in emerging economies? Evidence from Brazil," University of Göttingen Working Papers in Economics 382, University of Goettingen, Department of Economics.
    5. Weiming Zhang & Jiachao Peng & Lian Zhang, 2023. "Disruptive Displacement: The Impacts of Industrial Robots on the Energy Industry’s International Division of Labor from a Technological Complexity View," Energies, MDPI, vol. 16(8), pages 1-19, April.
    6. Koch, Michael & Manuylov, Ilya, 2023. "Measuring the technological bias of robot adoption and its implications for the aggregate labor share," Research Policy, Elsevier, vol. 52(9).
    7. Bas, Maria & Fernandes, Ana & Paunov, Caroline, 2024. "How resilient was trade to COVID-19?," Economics Letters, Elsevier, vol. 240(C).
    8. Faber, Marius, 2020. "Robots and reshoring: Evidence from Mexican labor markets," Journal of International Economics, Elsevier, vol. 127(C).
    9. Jörg Mayer, 2021. "Development strategies for middle‐income countries in a digital world—Insights from modern trade economics," The World Economy, Wiley Blackwell, vol. 44(9), pages 2515-2546, September.
    10. Derick Almeida & Tiago Neves Sequeira, 2024. "Robots at work: New evidence with recent data," Manchester School, University of Manchester, vol. 92(6), pages 700-722, December.
    11. Sun, Wenyuan & Zhang, Zhonghui & Chen, Yang & Luan, Fushu, 2023. "Heterogeneous effects of robots on employment in agriculture, industry, and services sectors," Technology in Society, Elsevier, vol. 75(C).
    12. Andreas Baur & Lisandra Flach & Isabella Gourevich & Florian Unger, 2023. "North-South Trade: The Impact of Robotization," CESifo Working Paper Series 10865, CESifo.
    13. ADACHI Daisuke, 2024. "Robots and Wage Polarization: The effects of robot capital by occupation," Discussion papers 24066, Research Institute of Economy, Trade and Industry (RIETI).
    14. Sequeira, Tiago Neves & Garrido, Susana & Santos, Marcelo, 2021. "Robots are not always bad for employment and wages," International Economics, Elsevier, vol. 167(C), pages 108-119.
    15. Alguacil Marí, María Teresa & Lo Turco, Alessia & Martínez-Zarzoso, Inmaculada, 2020. "What is so special about robots and trade?," University of Göttingen Working Papers in Economics 410, University of Goettingen, Department of Economics.
    16. Andrés César & Guillermo Falcone & Pablo Garriga, 2022. "Robots, Exports and Top Income Inequality: Evidence for the U.S," CEDLAS, Working Papers 0307, CEDLAS, Universidad Nacional de La Plata.
    17. Toon Van Overbeke, 2023. "Conflict or cooperation? Exploring the relationship between cooperative institutions and robotisation," British Journal of Industrial Relations, London School of Economics, vol. 61(3), pages 550-573, September.
    18. Chen, Chinchih & Frey, Carl Benedikt & Presidente, Giorgio, 2022. "Automation or globalization? The impacts of robots and Chinese imports on jobs in the United Kingdom," Journal of Economic Behavior & Organization, Elsevier, vol. 204(C), pages 528-542.

    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.
    1. Cilekoglu, Akin A. & Moreno, Rosina & Ramos, Raul, 2024. "The impact of robot adoption on global sourcing," Research Policy, Elsevier, vol. 53(3).
    2. Lee, Eunhee, 2020. "Trade, inequality, and the endogenous sorting ofheterogeneous workers," Journal of International Economics, Elsevier, vol. 125(C).
    3. Hidalgo, Camila & Micco, Alejandro, 2024. "Computerization, offshoring and trade: The effect on developing countries," World Development, Elsevier, vol. 180(C).
    4. Justin Caron & Thibault Fally & James Markusen, 2021. "Per capita income and the demand for skills," World Scientific Book Chapters, in: BROADENING TRADE THEORY Incorporating Market Realities into Traditional Models, chapter 12, pages 251-268, World Scientific Publishing Co. Pte. Ltd..
    5. Lee, Eunhee & Yi, Kei-Mu, 2018. "Global value chains and inequality with endogenous labor supply," Journal of International Economics, Elsevier, vol. 115(C), pages 223-241.
    6. Pol Antràs & Davin Chor, 2021. "Global Value Chains," NBER Working Papers 28549, National Bureau of Economic Research, Inc.
    7. DeStefano, Timothy & Timmis, Jonathan, 2024. "Robots and export quality," Journal of Development Economics, Elsevier, vol. 168(C).
    8. Galle, Simon & Lorentzen, Linnea, 2024. "The unequal effects of trade and automation across local labor markets," Journal of International Economics, Elsevier, vol. 150(C).
    9. Faber, Marius, 2020. "Robots and reshoring: Evidence from Mexican labor markets," Journal of International Economics, Elsevier, vol. 127(C).
    10. Costinot, Arnaud & Rodríguez-Clare, Andrés, 2014. "Trade Theory with Numbers: Quantifying the Consequences of Globalization," Handbook of International Economics, in: Gopinath, G. & Helpman, . & Rogoff, K. (ed.), Handbook of International Economics, edition 1, volume 4, chapter 0, pages 197-261, Elsevier.
    11. Li, Hongbin & Li, Lei & Ma, Hong, 2022. "China's skill-biased imports," China Economic Review, Elsevier, vol. 74(C).
    12. Azmeh, Shamel & Nguyen, Huong & Kuhn, Marlene, 2022. "Automation and industrialisation through global value chains: North Africa in the German automotive wiring harness industry," Structural Change and Economic Dynamics, Elsevier, vol. 63(C), pages 125-138.
    13. Andreas Baur & Lisandra Flach & Isabella Gourevich & Florian Unger, 2023. "North-South Trade: The Impact of Robotization," CESifo Working Paper Series 10865, CESifo.
    14. Bosker, Maarten & Westbrock, Bastian, 2024. "The network origins of the gains from trade," Journal of Economic Theory, Elsevier, vol. 216(C).
    15. Auboin, Marc & Koopman, Robert & Xu, Ankai, 2021. "Trade and innovation policies: Coexistence and spillovers," Journal of Policy Modeling, Elsevier, vol. 43(4), pages 844-872.
    16. Andrew B. Bernard & J. Bradford Jensen & Stephen J. Redding & Peter K. Schott, 2018. "Global Firms," Journal of Economic Literature, American Economic Association, vol. 56(2), pages 565-619, June.
    17. Johnson, Robert C. & Moxnes, Andreas, 2023. "GVCs and trade elasticities with multistage production," Journal of International Economics, Elsevier, vol. 145(C).
    18. Antonio Martins-Neto & Nanditha Mathew & Pierre Mohnen & Tania Treibich, 2024. "Is There Job Polarization in Developing Economies? A Review and Outlook," The World Bank Research Observer, World Bank, vol. 39(2), pages 259-288.
    19. Pol Antràs, 2020. "De-Globalisation? Global Value Chains in the Post-COVID-19 Age," NBER Working Papers 28115, National Bureau of Economic Research, Inc.
    20. Nenci, Silvia & Fusacchia, Ilaria & Giunta, Anna & Montalbano, Pierluigi & Pietrobelli, Carlo, 2022. "Mapping global value chain participation and positioning in agriculture and food: stylised facts, empirical evidence and critical issues," Bio-based and Applied Economics Journal, Italian Association of Agricultural and Applied Economics (AIEAA), vol. 11(2), July.

    More about this item

    Keywords

    Robots; Tasks; Jobs; Wages; Trade; Inputs; Global value chains; Gains from trade;
    All these keywords.

    JEL classification:

    • F1 - International Economics - - Trade
    • J23 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Demand
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • O3 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights
    • O4 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity

    Statistics

    Access and download statistics

    Corrections

    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:eee:inecon:v:145:y:2023:i:c:s0022199623001149. 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: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/inca/505552 .

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

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.