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Commuting and innovation: Are closer inventors more productive?

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  • Xiao, Hongyu
  • Wu, Andy
  • Kim, Jaeho

Abstract

We estimate the causal effect of workplace–home commuting distance on inventor productivity. We construct a novel panel of U.S. inventors with precisely measured workplace–home distances and inventor-level productivity. Our identification strategy exploits firm office relocations as exogenous variation in the commuting distance of inventors at the firms. We find a significant negative effect from commuting distance on inventor productivity: every 10 km increase in distance is associated with a 5% decrease in patents per inventor–firm pair per year and an even greater 7% decrease in patent quality. The highest-performing inventors suffer more from increased commuting distance. We discuss the implications of our findings in the light of recent trends around telecommuting and remote work during the COVID-19 pandemic.

Suggested Citation

  • Xiao, Hongyu & Wu, Andy & Kim, Jaeho, 2021. "Commuting and innovation: Are closer inventors more productive?," Journal of Urban Economics, Elsevier, vol. 121(C).
  • Handle: RePEc:eee:juecon:v:121:y:2021:i:c:s0094119020300711
    DOI: 10.1016/j.jue.2020.103300
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    as
    1. Neumark, David & Polsky, Daniel & Hansen, Daniel, 1999. "Has Job Stability Declined Yet? New Evidence for the 1990s," Journal of Labor Economics, University of Chicago Press, vol. 17(4), pages 29-64, October.
    2. Gilles Duranton & Diego Puga, 2001. "Nursery Cities: Urban Diversity, Process Innovation, and the Life Cycle of Products," American Economic Review, American Economic Association, vol. 91(5), pages 1454-1477, December.
    3. Patrick Kline & Neviana Petkova & Heidi Williams & Owen Zidar, 2019. "Who Profits from Patents? Rent-Sharing at Innovative Firms," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 134(3), pages 1343-1404.
    4. Vikas A. Aggarwal & David H. Hsu & Andy Wu, 2020. "Organizing Knowledge Production Teams Within Firms for Innovation," Strategy Science, INFORMS, vol. 5(1), pages 1-16, March.
    5. repec:dgr:uvatin:20090014 is not listed on IDEAS
    6. Ross, Stephen L. & Zenou, Yves, 2008. "Are shirking and leisure substitutable? An empirical test of efficiency wages based on urban economic theory," Regional Science and Urban Economics, Elsevier, vol. 38(5), pages 498-517, September.
    7. Nick Bloom & Tobias Kretschmer & John Van Reenan, 2009. "Work-Life Balance, Management Practices and Productivity," NBER Chapters, in: International Differences in the Business Practices and Productivity of Firms, pages 15-54, National Bureau of Economic Research, Inc.
    8. Gary S. Becker & Kevin M. Murphy, 1994. "The Division of Labor, Coordination Costs, and Knowledge," NBER Chapters, in: Human Capital: A Theoretical and Empirical Analysis with Special Reference to Education, Third Edition, pages 299-322, National Bureau of Economic Research, Inc.
    9. Manning, Alan, 2003. "The real thin theory: monopsony in modern labour markets," Labour Economics, Elsevier, vol. 10(2), pages 105-131, April.
    10. Gyourko, Joseph & Hartley, Jonathan S. & Krimmel, Jacob, 2021. "The local residential land use regulatory environment across U.S. housing markets: Evidence from a new Wharton index," Journal of Urban Economics, Elsevier, vol. 124(C).
    11. Leonid Kogan & Dimitris Papanikolaou & Amit Seru & Noah Stoffman, 2017. "Technological Innovation, Resource Allocation, and Growth," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 132(2), pages 665-712.
    12. Alexander W. Bartik & Zoe B. Cullen & Edward L. Glaeser & Michael Luca & Christopher T. Stanton, 2020. "What Jobs are Being Done at Home During the Covid-19 Crisis? Evidence from Firm-Level Surveys," NBER Working Papers 27422, National Bureau of Economic Research, Inc.
    13. Bronwyn H. Hall & Adam B. Jaffe & Manuel Trajtenberg, 2001. "The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools," NBER Working Papers 8498, National Bureau of Economic Research, Inc.
    14. Duranton, Gilles & Puga, Diego, 2015. "Urban Land Use," Handbook of Regional and Urban Economics, in: Gilles Duranton & J. V. Henderson & William C. Strange (ed.), Handbook of Regional and Urban Economics, edition 1, volume 5, chapter 0, pages 467-560, Elsevier.
    15. Helsley, Robert W. & Strange, William C., 1990. "Matching and agglomeration economies in a system of cities," Regional Science and Urban Economics, Elsevier, vol. 20(2), pages 189-212, September.
    16. Zenou, Yves, 2002. "How do firms redline workers?," Journal of Urban Economics, Elsevier, vol. 52(3), pages 391-408, November.
    17. van Ommeren, Jos N. & Gutiérrez-i-Puigarnau, Eva, 2011. "Are workers with a long commute less productive? An empirical analysis of absenteeism," Regional Science and Urban Economics, Elsevier, vol. 41(1), pages 1-8, January.
    18. Manuel Trajtenberg, 1990. "A Penny for Your Quotes: Patent Citations and the Value of Innovations," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 172-187, Spring.
    19. Deitz, Richard, 1998. "A Joint Model of Residential and Employment Location in Urban Areas," Journal of Urban Economics, Elsevier, vol. 44(2), pages 197-215, September.
    20. Fernando Ferreira & Joseph Gyourko, 2015. "A New Look at the U.S. Foreclosure Crisis: Panel Data Evidence of Prime and Subprime Borrowers from 1997 to 2012," NBER Working Papers 21261, National Bureau of Economic Research, Inc.
    21. Ufuk Akcigit & Salomé Baslandze & Stefanie Stantcheva, 2016. "Taxation and the International Mobility of Inventors," American Economic Review, American Economic Association, vol. 106(10), pages 2930-2981, October.
    22. Enrico Moretti & Daniel J. Wilson, 2017. "The Effect of State Taxes on the Geographical Location of Top Earners: Evidence from Star Scientists," American Economic Review, American Economic Association, vol. 107(7), pages 1858-1903, July.
    23. Edward L. Glaeser & Naomi Hausman, 2019. "The Spatial Mismatch between Innovation and Joblessness," NBER Chapters, in: Innovation Policy and the Economy, Volume 20, pages 233-299, National Bureau of Economic Research, Inc.
    24. Nicholas Bloom & James Liang & John Roberts & Zhichun Jenny Ying, 2015. "Does Working from Home Work? Evidence from a Chinese Experiment," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 130(1), pages 165-218.
    25. Rebecca Diamond, 2016. "The Determinants and Welfare Implications of US Workers' Diverging Location Choices by Skill: 1980-2000," American Economic Review, American Economic Association, vol. 106(3), pages 479-524, March.
    26. Bessen, James, 2008. "The value of U.S. patents by owner and patent characteristics," Research Policy, Elsevier, vol. 37(5), pages 932-945, June.
    27. Romer, Paul M, 1990. "Endogenous Technological Change," Journal of Political Economy, University of Chicago Press, vol. 98(5), pages 71-102, October.
    28. Rauch James E., 1993. "Productivity Gains from Geographic Concentration of Human Capital: Evidence from the Cities," Journal of Urban Economics, Elsevier, vol. 34(3), pages 380-400, November.
    29. Eva Gutiérrez-i-Puigarnau & Ismir Mulalic & Jos N. van Ommeren, 2016. "Do rich households live farther away from their workplaces?," Journal of Economic Geography, Oxford University Press, vol. 16(1), pages 177-201.
    30. Nicholas Bloom & John Van Reenen, 2010. "Why Do Management Practices Differ across Firms and Countries?," Journal of Economic Perspectives, American Economic Association, vol. 24(1), pages 203-224, Winter.
    31. Bronwyn H. Hall & Adam Jaffe & Manuel Trajtenberg, 2005. "Market Value and Patent Citations," RAND Journal of Economics, The RAND Corporation, vol. 36(1), pages 16-38, Spring.
    32. Adam B. Jaffe & Manuel Trajtenberg & Rebecca Henderson, 1993. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 108(3), pages 577-598.
    33. Manuel Trajtenberg & Rebecca Henderson & Adam Jaffe, 1997. "University Versus Corporate Patents: A Window On The Basicness Of Invention," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 5(1), pages 19-50.
    34. Daniel Kahneman & Alan B. Krueger, 2006. "Developments in the Measurement of Subjective Well-Being," Journal of Economic Perspectives, American Economic Association, vol. 20(1), pages 3-24, Winter.
    35. Boyan Jovanovic & Rafael Rob, 1989. "The Growth and Diffusion of Knowledge," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 56(4), pages 569-582.
    36. Blanes I Vidal, Jordi, 2020. "Face-to-face communication in organizations," LSE Research Online Documents on Economics 106580, London School of Economics and Political Science, LSE Library.
    37. Maria P. Roche, 2020. "Taking Innovation to the Streets: Microgeography, Physical Structure, and Innovation," The Review of Economics and Statistics, MIT Press, vol. 102(5), pages 912-928, December.
    38. repec:zbw:bofrdp:2015_027 is not listed on IDEAS
    39. Judith K. Hellerstein & Melissa McInerney & David Neumark, 2011. "Neighbors and Coworkers: The Importance of Residential Labor Market Networks," Journal of Labor Economics, University of Chicago Press, vol. 29(4), pages 659-695.
    40. Glaeser, Edward L., 1999. "Learning in Cities," Journal of Urban Economics, Elsevier, vol. 46(2), pages 254-277, September.
    41. Zax, Jeffrey S & Kain, John F, 1996. "Moving to the Suburbs: Do Relocating Companies Leave Their Black Employees Behind?," Journal of Labor Economics, University of Chicago Press, vol. 14(3), pages 472-504, July.
    42. Brueckner, Jan K. & Thisse, Jacques-Francois & Zenou, Yves, 1999. "Why is central Paris rich and downtown Detroit poor?: An amenity-based theory," European Economic Review, Elsevier, vol. 43(1), pages 91-107, January.
    43. Pakes, Ariel S, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," Econometrica, Econometric Society, vol. 54(4), pages 755-784, July.
    44. Carlino, Gerald & Kerr, William R., 2015. "Agglomeration and Innovation," Handbook of Regional and Urban Economics, in: Gilles Duranton & J. V. Henderson & William C. Strange (ed.), Handbook of Regional and Urban Economics, edition 1, volume 5, chapter 0, pages 349-404, Elsevier.
    45. Diebold, Francis X & Neumark, David & Polsky, Daniel, 1997. "Job Stability in the United States," Journal of Labor Economics, University of Chicago Press, vol. 15(2), pages 206-233, April.
    46. Joseph Gyourko & Albert Saiz & Anita Summers, 2008. "A New Measure of the Local Regulatory Environment for Housing Markets: The Wharton Residential Land Use Regulatory Index," Urban Studies, Urban Studies Journal Limited, vol. 45(3), pages 693-729, March.
    47. Nick Bloom & Tobias Kretschmer & John Van Reenen, 2011. "Are family-friendly workplace practices a valuable firm resource?," Strategic Management Journal, Wiley Blackwell, vol. 32(4), pages 343-367, April.
    48. Eva Gutiérrez-i-Puigarnau & Ismir Mulalic & Jos N. van Ommeren, 2016. "Do rich households live farther away from their workplaces?," Journal of Economic Geography, Oxford University Press, vol. 16(1), pages 177-201.
    49. Ismir Mulalic & Jos N. Van Ommeren & Ninette Pilegaard, 2014. "Wages and Commuting: Quasi‐natural Experiments' Evidence from Firms that Relocate," Economic Journal, Royal Economic Society, vol. 124(579), pages 1086-1105, September.
    50. Ricardo Lagos, 2000. "An Alternative Approach to Search Frictions," Journal of Political Economy, University of Chicago Press, vol. 108(5), pages 851-873, October.
    51. repec:zbw:bofrdp:urn:nbn:fi:bof-201512111472 is not listed on IDEAS
    52. Jaeho Kim & Andy Wu, 2019. "Extending the role of headquarters beyond the firm boundary: entrepreneurial alliance innovation," Journal of Organization Design, Springer;Organizational Design Community, vol. 8(1), pages 1-35, December.
    53. Li, Guan-Cheng & Lai, Ronald & D’Amour, Alexander & Doolin, David M. & Sun, Ye & Torvik, Vetle I. & Yu, Amy Z. & Fleming, Lee, 2014. "Disambiguation and co-authorship networks of the U.S. patent inventor database (1975–2010)," Research Policy, Elsevier, vol. 43(6), pages 941-955.
    54. Zax, Jeffrey S., 1991. "Compensation for commutes in labor and housing markets," Journal of Urban Economics, Elsevier, vol. 30(2), pages 192-207, September.
    55. Shai Bernstein, 2015. "Does Going Public Affect Innovation?," Journal of Finance, American Finance Association, vol. 70(4), pages 1365-1403, August.
    56. Pakes, Ariel, 1985. "On Patents, R&D, and the Stock Market Rate of Return," Journal of Political Economy, University of Chicago Press, vol. 93(2), pages 390-409, April.
    57. Baumgardner, James R, 1988. "Physicians' Services and the Division of Labor across Local Markets," Journal of Political Economy, University of Chicago Press, vol. 96(5), pages 948-982, October.
    58. Shapiro, Carl & Stiglitz, Joseph E, 1984. "Equilibrium Unemployment as a Worker Discipline Device," American Economic Review, American Economic Association, vol. 74(3), pages 433-444, June.
    59. Freeman, Richard B. & Shaw, Kathryn L. (ed.), 2009. "International Differences in the Business Practices and Productivity of Firms," National Bureau of Economic Research Books, University of Chicago Press, number 9780226261942, June.
    60. Gilles Duranton & J. V. Henderson & William C. Strange (ed.), 2015. "Handbook of Regional and Urban Economics," Handbook of Regional and Urban Economics, Elsevier, edition 1, volume 5, number 5.
    61. Vuuren, Aico van, 2018. "City structure and the location of young college graduates," Journal of Urban Economics, Elsevier, vol. 104(C), pages 1-15.
    62. Van Ommeren, Jos & Fosgerau, Mogens, 2009. "Workers' marginal costs of commuting," Journal of Urban Economics, Elsevier, vol. 65(1), pages 38-47, January.
    63. John DiNardo & David S. Lee, 2004. "Economic Impacts of New Unionization on Private Sector Employers: 1984–2001," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 119(4), pages 1383-1441.
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    4. John T. H. Wong & Matthias Hei Man & Alex Li Cheuk Hung, 2022. "Population and Technological Growth: Evidence from Roe v. Wade," Papers 2211.00410, arXiv.org.
    5. Luyi Han & John V. Winters, 2024. "Did the U.S. Fracking Boom Shale‐Shock Regional Patenting?," Growth and Change, Wiley Blackwell, vol. 55(4), December.
    6. Feicheng Wang & Zheng Wang & Zhuo Zhou, 2021. "Business flies: The trade promoting effect of air connectivity," Discussion Papers 2021-04, University of Nottingham, GEP.
    7. Knudsen, Elias Stapput & Hjorth, Katrine & Pilegaard, Ninette, 2022. "Wages and accessibility – Evidence from Denmark," Transportation Research Part A: Policy and Practice, Elsevier, vol. 158(C), pages 44-61.
    8. Wang, Feicheng & Wang, Zheng & Zhou, Zhou, 2021. "Business flies: The trade promoting effect of air connectivity," University of Göttingen Working Papers in Economics 425, University of Goettingen, Department of Economics.
    9. Berliant, Marcus & Fujita, Masahisa, 2023. "Knowledge Creation through Multimodal Communication," MPRA Paper 118318, University Library of Munich, Germany.
    10. Widmann, Rainer, 2023. "Immigrant inventors and local income taxes: Evidence from Swiss municipalities," Journal of Public Economics, Elsevier, vol. 219(C).
    11. Yang, Xiuyun & Li, Min & Liang, Shanshan, 2024. "How consumers’ digital engagement affects regional innovation capacity in China?," Economic Modelling, Elsevier, vol. 139(C).
    12. Diekhof, Josefine & Krieger, Bastian & Licht, Georg & Rammer, Christian & Schmitt, Johannes & Stenke, Gero, 2021. "The impact of the Covid-19 crisis on innovation: First in-sights from the German business sector," ZEW Expert Briefs 21-06, ZEW - Leibniz Centre for European Economic Research.
    13. Battisti, Enrico & Alfiero, Simona & Leonidou, Erasmia, 2022. "Remote working and digital transformation during the COVID-19 pandemic: Economic–financial impacts and psychological drivers for employees," Journal of Business Research, Elsevier, vol. 150(C), pages 38-50.

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    More about this item

    Keywords

    Commuting distance; Proximity; Inventor productivity; Innovation; Firm relocation; Telecommuting;
    All these keywords.

    JEL classification:

    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • O30 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - General
    • R30 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Real Estate Markets, Spatial Production Analysis, and Firm Location - - - General
    • R41 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics - - - Transportation: Demand, Supply, and Congestion; Travel Time; Safety and Accidents; Transportation Noise

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