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Vertical structure and wage inequality

Author

Listed:
  • Jiancai Pi
  • Shuning Li
  • Shumin Yu

Abstract

We analyze the role of vertical structure in wage inequality. By constructing general equilibrium models, we consider scenarios with unemployment, full employment, and separated unskilled labor markets. In an economy with unemployment, a reduction in the regulated upstream price will widen wage inequality if the substitution elasticity of factors in the variable cost is sufficiently small. In an economy with full employment, a decrease in the regulated upstream price will expand wage inequality. In an economy with separated unskilled labor markets, the results in the two aforementioned situations still hold. We further discuss how regulated upstream pricing affects social welfare.

Suggested Citation

  • Jiancai Pi & Shuning Li & Shumin Yu, 2026. "Vertical structure and wage inequality," International Journal of Economic Theory, The International Society for Economic Theory, vol. 22(2), pages 161-182, June.
    • Handle: RePEc:bla:ijethy:v:22:y:2026:i:2:p:161-182
    DOI: 10.1111/ijet.70013
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    References listed on IDEAS

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    1. Jiancai Pi & Pengqing Zhang, 2018. "Horizontal Mergers and Wage Inequality," Journal of Institutional and Theoretical Economics (JITE), Mohr Siebeck, Tübingen, vol. 174(3), pages 495-513, September.
    2. Ezra Oberfield & Devesh Raval, 2021. "Micro Data and Macro Technology," Econometrica, Econometric Society, vol. 89(2), pages 703-732, March.
    3. Markus Reisinger & Emanuele Tarantino, 2015. "Vertical integration, foreclosure, and productive efficiency," RAND Journal of Economics, RAND Corporation, vol. 46(3), pages 461-479, September.
    4. Walde, Klaus & Wei[ss], Pia, 2007. "International competition, downsizing and wage inequality," Journal of International Economics, Elsevier, vol. 73(2), pages 396-406, November.
    5. Chao, Chi-Chur & Nabin, Munirul & Nguyen, Xuan & Sgro, Pasquale M., 2016. "Wage inequality and welfare in developing countries: Privatization and reforms in the short and long run," International Review of Economics & Finance, Elsevier, vol. 42(C), pages 474-483.
    6. Jiancai Pi & Shuning Li, 2022. "Managerial Delegation and Wage Inequality," Annals of Economics and Finance, Society for AEF, vol. 23(1), pages 141-157, May.
    7. Pi, Jiancai & Fan, Yanwei, 2021. "Institutional change and wage inequality," International Review of Economics & Finance, Elsevier, vol. 71(C), pages 440-452.
    8. Feenstra, Robert C & Hanson, Gordon H, 1996. "Globalization, Outsourcing, and Wage Inequality," American Economic Review, American Economic Association, vol. 86(2), pages 240-245, May.
    9. Chakrabarti, Avik & Mitra, Rajarshi, 2010. "Skilled-unskilled wage inequality and offshore outsourcing with asymmetric adjustment costs," International Review of Economics & Finance, Elsevier, vol. 19(2), pages 340-345, April.
    10. Anwar, Sajid, 2009. "Wage inequality, welfare and downsizing," Economics Letters, Elsevier, vol. 103(2), pages 75-77, May.
    11. Mallick, Debdulal, 2012. "The role of the elasticity of substitution in economic growth: A cross-country investigation," Labour Economics, Elsevier, vol. 19(5), pages 682-694.
    12. Grossman, Sanford J & Hart, Oliver D, 1986. "The Costs and Benefits of Ownership: A Theory of Vertical and Lateral Integration," Journal of Political Economy, University of Chicago Press, vol. 94(4), pages 691-719, August.
    13. Stephen J. Turnovsky & Zinan Wang, 2022. "The Effects of Globalization on Skilled Labor, Unskilled Labor, and the Skill Premium," Open Economies Review, Springer, vol. 33(3), pages 407-452, July.
    14. Hamid Beladi & Chi‐Chur Chao, 2006. "Mixed Ownership, Unemployment, and Welfare for a Developing Economy," Review of Development Economics, Wiley Blackwell, vol. 10(4), pages 604-611, November.
    15. Arghya Ghosh & Manipushpak Mitra & Bibhas Saha, 2015. "Privatization, Underpricing, and Welfare in the Presence of Foreign Competition," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 17(3), pages 433-460, June.
    16. Nirvikar Singh & Xavier Vives, 1984. "Price and Quantity Competition in a Differentiated Duopoly," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 546-554, Winter.
    17. Pi Jiancai & Zhao Runzhi, 2020. "Corporate Social Responsibility and Wage Inequality," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 20(3), pages 1-16, July.
    18. Pi Jiancai & Yin Jun, 2016. "Privatization, Unemployment, and Welfare in the Harris-Todaro Model with a Mixed Duopoly," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 16(4), pages 1-12, October.
    19. Pi, Jiancai & Zhang, Pengqing, 2018. "Privatization and wage inequality in developing countries," International Review of Economics & Finance, Elsevier, vol. 58(C), pages 594-603.
    20. Anwar, Sajid, 2013. "Outsourcing and the skilled–unskilled wage gap," Economics Letters, Elsevier, vol. 118(2), pages 347-350.
    21. Chi†Chur Chao & Mong Shan Ee & Leonard F. S. Wang, 2018. "Public firms' merger, employment, and welfare in developing countries: A general equilibrium analysis," Review of Development Economics, Wiley Blackwell, vol. 22(2), pages 727-735, May.
    22. Joseph J. Spengler, 1950. "Vertical Integration and Antitrust Policy," Journal of Political Economy, University of Chicago Press, vol. 58(4), pages 347-347.
    23. Alexander Hijzen, 2007. "International Outsourcing, Technological Change, and Wage Inequality," Review of International Economics, Wiley Blackwell, vol. 15(1), pages 188-205, February.
    24. Mukherjee, Arijit, 2019. "Profit raising entry in a vertical structure," Economics Letters, Elsevier, vol. 183(C), pages 1-1.
    25. Anwar, Sajid & Sun, Sizhong & Valadkhani, Abbas, 2013. "International outsourcing of skill intensive tasks and wage inequality," Economic Modelling, Elsevier, vol. 31(C), pages 590-597.
    26. Jiancai Pi & Pengqing Zhang, 2024. "Financial Discrimination And Wage Inequality In China," The Singapore Economic Review (SER), World Scientific Publishing Co. Pte. Ltd., vol. 69(08), pages 2597-2614, December.
    27. Chrysovalantou Milliou, 2014. "Location for Foreign Direct Investment in Vertically Related Markets," Review of International Economics, Wiley Blackwell, vol. 22(2), pages 326-341, May.
    28. Hamilton, Stephen F. & Requate, Till, 2004. "Vertical structure and strategic environmental trade policy," Journal of Environmental Economics and Management, Elsevier, vol. 47(2), pages 260-269, March.
    29. Kang Shi & Juanyi Xu, 2007. "Optimal Monetary Policy with Vertical Production and Trade," Review of International Economics, Wiley Blackwell, vol. 15(3), pages 514-537, August.
    30. Han Tien-Der & Haque M. Emranul & Mukherjee Arijit, 2022. "Product Differentiation in a Vertical Structure," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 22(1), pages 105-122, January.
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