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Gender diversity, sustainability reporting, CEO overconfidence, and efficient risk‐taking: Evidence from South Asian agri‐food industry

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  • Farzan Yahya
  • Li Meiling
  • Chien‐Chiang Lee
  • Muhammad Waqas
  • Zhang Shaohua

Abstract

This article aims to understand the impact of board gender diversity (BGD) on the firm's deviation from efficient risk‐taking (DERT) along with the mediating effect of sustainability reporting and the moderating effect of CEO overconfidence. The sample consists of 77 South Asian agri‐food firms over the period 2010–2019. To account for endogeneity and other statistical biases, we use a system GMM approach. The results show that there is a non‐monotonic relationship between BGD and DERT. Consistent with critical mass theory, we find that at least three women on board (WOB) are required to reduce the firm's DERT. The findings of the study also reveal that the overconfident CEO may restrict the female directors to achieve the firm's efficient risk‐taking. The evidence further suggests that sustainability reporting quality (SRQ) does not mediate the link between BGD and a firm's DERT. The robustness tests are performed based on alternative risk proxy and the likelihood of financial distress. Our results theoretically support stakeholder, critical mass, and agency perspective that South Asian capital markets should enhance the representation of WOB to mitigate agency conflicts and to improve long‐term firm sustainability. Cet article vise à comprendre l'impact de la diversité au sein du conseil d'administration (DCA) sur l'écart de l'entreprise par rapport à une prise de risque efficace (EPRE), ainsi que l'effet médiateur des déclarations de durabilité et l'effet modérateur de l'excès de confiance des PDG. L'échantillon est composé de 77 entreprises agroalimentaires sud‐asiatiques sur la période 2010 à 2019. Pour tenir compte de l'endogénéité et d'autres biais statistiques, nous utilisons un système MMG. Les résultats montrent qu'il existe une relation non monotone entre DCA et EPRE. Conformément à la théorie de la masse critique, nous constatons qu'au moins trois femmes au conseil sont nécessaires pour réduire l'écart de l'entreprise par rapport à une prise de risque efficace. Les résultats de l'étude révèlent également qu'un PDG trop confiant peut restreindre les administratrices à atteindre une prise de risque efficace pour l'entreprise. Les résultats suggèrent en outre que la qualité des déclarations sur la durabilité n'influence pas le lien entre DCA et l'écart d'une entreprise par rapport à une prise de risque efficace. Les tests de robustesse sont effectués sur la base d'un indicateur alternatif de risque et de la probabilité de difficultés financières. Nos résultats soutiennent théoriquement la perspective des parties prenantes, de la masse critique et de l'agence selon laquelle les marchés financiers sud‐asiatiques devraient améliorer la représentation des femmes à bord pour atténuer les conflits d'agence et améliorer la durabilité à long terme de l'entreprise.

Suggested Citation

  • Farzan Yahya & Li Meiling & Chien‐Chiang Lee & Muhammad Waqas & Zhang Shaohua, 2022. "Gender diversity, sustainability reporting, CEO overconfidence, and efficient risk‐taking: Evidence from South Asian agri‐food industry," Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, Canadian Agricultural Economics Society/Societe canadienne d'agroeconomie, vol. 70(3), pages 219-238, September.
    • Handle: RePEc:bla:canjag:v:70:y:2022:i:3:p:219-238
    DOI: 10.1111/cjag.12318
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    as
    1. Stephen Bear & Noushi Rahman & Corinne Post, 2010. "The Impact of Board Diversity and Gender Composition on Corporate Social Responsibility and Firm Reputation," Journal of Business Ethics, Springer, vol. 97(2), pages 207-221, December.
    2. Palomino, Frederic & Prat, Andrea, 2003. "Risk Taking and Optimal Contracts for Money Managers," RAND Journal of Economics, The RAND Corporation, vol. 34(1), pages 113-137, Spring.
    3. Tleubayev, Alisher & Bobojonov, Ihtiyor & Gagalyuk, Taras & Glauben, Thomas, 2020. "Board gender diversity and firm performance: evidence from the Russian agri-food industry," International Food and Agribusiness Management Review, International Food and Agribusiness Management Association, vol. 23(1).
    4. Farzan Yahya & Ghulam Abbas & Ammar Ahmed & Muhammad Sadiq Hashmi, 2020. "Restrictive and Supportive Mechanisms for Female Directors’ Risk-Averse Behavior: Evidence From South Asian Health Care Industry," SAGE Open, , vol. 10(4), pages 21582440209, October.
    5. Mariateresa Torchia & Andrea Calabrò & Morten Huse, 2011. "Women Directors on Corporate Boards: From Tokenism to Critical Mass," Journal of Business Ethics, Springer, vol. 102(2), pages 299-317, August.
    6. Nadeem, Muhammad & Suleman, Tahir & Ahmed, Ammad, 2019. "Women on boards, firm risk and the profitability nexus: Does gender diversity moderate the risk and return relationship?," International Review of Economics & Finance, Elsevier, vol. 64(C), pages 427-442.
    7. Adams, Renée B. & Ferreira, Daniel, 2009. "Women in the boardroom and their impact on governance and performance," Journal of Financial Economics, Elsevier, vol. 94(2), pages 291-309, November.
    8. Nadia Loukil & Ouidad Yousfi, 2016. "Does gender diversity on corporate boards increase risk-taking?," Post-Print hal-02015753, HAL.
    9. Fama, Eugene F & Jensen, Michael C, 1983. "Separation of Ownership and Control," Journal of Law and Economics, University of Chicago Press, vol. 26(2), pages 301-325, June.
    10. Malmendier, Ulrike & Tate, Geoffrey, 2008. "Who makes acquisitions? CEO overconfidence and the market's reaction," Journal of Financial Economics, Elsevier, vol. 89(1), pages 20-43, July.
    11. Paul McGuinness & Kevin Lam & João Vieito, 2015. "Gender and other major board characteristics in China: Explaining corporate dividend policy and governance," Asia Pacific Journal of Management, Springer, vol. 32(4), pages 989-1038, December.
    12. Schrand, Catherine M. & Zechman, Sarah L.C., 2012. "Executive overconfidence and the slippery slope to financial misreporting," Journal of Accounting and Economics, Elsevier, vol. 53(1), pages 311-329.
    13. Arellano, Manuel & Bover, Olympia, 1995. "Another look at the instrumental variable estimation of error-components models," Journal of Econometrics, Elsevier, vol. 68(1), pages 29-51, July.
    14. Remmer Sassen & Anne-Kathrin Hinze & Inga Hardeck, 2016. "Impact of ESG factors on firm risk in Europe," Journal of Business Economics, Springer, vol. 86(8), pages 867-904, November.
    15. Hermalin, Benjamin E & Weisbach, Michael S, 1998. "Endogenously Chosen Boards of Directors and Their Monitoring of the CEO," American Economic Review, American Economic Association, vol. 88(1), pages 96-118, March.
    16. David Roodman, 2009. "How to do xtabond2: An introduction to difference and system GMM in Stata," Stata Journal, StataCorp LP, vol. 9(1), pages 86-136, March.
    17. Duong T. Pham, 2020. "CEO influence on the board of directors: Evidence from corporate spinoffs," European Financial Management, European Financial Management Association, vol. 26(5), pages 1324-1349, November.
    18. Ulrike Malmendier & Geoffrey Tate, 2005. "CEO Overconfidence and Corporate Investment," Journal of Finance, American Finance Association, vol. 60(6), pages 2661-2700, December.
    19. Maretno Harjoto & Indrarini Laksmana, 2018. "The Impact of Corporate Social Responsibility on Risk Taking and Firm Value," Journal of Business Ethics, Springer, vol. 151(2), pages 353-373, August.
    20. Benjamin E. Hermalin & Michael S. Weisbach, 1991. "The Effects of Board Composition and Direct Incentives on Firm Performance," Financial Management, Financial Management Association, vol. 20(4), Winter.
    21. María‐Florencia Amorelli & Isabel‐María García‐Sánchez, 2021. "Trends in the dynamic evolution of board gender diversity and corporate social responsibility," Corporate Social Responsibility and Environmental Management, John Wiley & Sons, vol. 28(2), pages 537-554, March.
    22. Attah-Boakye, Rexford & Adams, Kweku & Kimani, Danson & Ullah, Subhan, 2020. "The impact of board gender diversity and national culture on corporate innovation: A multi-country analysis of multinational corporations operating in emerging economies," Technological Forecasting and Social Change, Elsevier, vol. 161(C).
    23. Gopal Krishnan & Linda Parsons, 2008. "Getting to the Bottom Line: An Exploration of Gender and Earnings Quality," Journal of Business Ethics, Springer, vol. 78(1), pages 65-76, March.
    24. Black, Bernard & de Carvalho, Antonio Gledson & Khanna, Vikramaditya & Kim, Woochan & Yurtoglu, Burcin, 2014. "Methods for multicountry studies of corporate governance: Evidence from the BRIKT countries," Journal of Econometrics, Elsevier, vol. 183(2), pages 230-240.
    25. Xingqiang Du, 2016. "Does Confucianism Reduce Board Gender Diversity? Firm-Level Evidence from China," Journal of Business Ethics, Springer, vol. 136(2), pages 399-436, June.
    26. Maria Giuseppina Bruna & Rey Dang & Marie-José Scotto & Aymen Ammari, 2019. "Does board gender diversity affect firm risk-taking? Evidence from the French stock market," Journal of Management & Governance, Springer;Accademia Italiana di Economia Aziendale (AIDEA), vol. 23(4), pages 915-938, December.
    27. Walid Ben-Amar & Millicent Chang & Philip McIlkenny, 2017. "Board Gender Diversity and Corporate Response to Sustainability Initiatives: Evidence from the Carbon Disclosure Project," Journal of Business Ethics, Springer, vol. 142(2), pages 369-383, May.
    28. Abubakr Saeed & Syed Shafqat Mukarram & Yacine Belghitar, 2021. "Read between the lines: Board gender diversity, family ownership, and risk‐taking in Indian high‐tech firms," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 26(1), pages 185-207, January.
    29. Perryman, Alexa A. & Fernando, Guy D. & Tripathy, Arindam, 2016. "Do gender differences persist? An examination of gender diversity on firm performance, risk, and executive compensation," Journal of Business Research, Elsevier, vol. 69(2), pages 579-586.
    30. Pattanaporn Chatjuthamard & Pornsit Jiraporn & Sang Mook Lee, 2021. "Does board gender diversity weaken or strengthen executive risk-taking incentives?," PLOS ONE, Public Library of Science, vol. 16(10), pages 1-18, October.
    31. Melissa B. Frye & Duong T. Pham, 2020. "Economic Policy Uncertainty And Board Monitoring: Evidence From Ceo Turnovers," Journal of Financial Research, Southern Finance Association;Southwestern Finance Association, vol. 43(3), pages 675-703, August.
    32. Al-Shaer, Habiba & Zaman, Mahbub, 2016. "Board gender diversity and sustainability reporting quality," Journal of Contemporary Accounting and Economics, Elsevier, vol. 12(3), pages 210-222.
    33. Manuel Arellano & Stephen Bond, 1991. "Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 58(2), pages 277-297.
    34. Fitriya Fauzi & Abdul Basyith & Poh-Ling Ho, 2017. "Women on boardroom: Does it create risk?," Cogent Economics & Finance, Taylor & Francis Journals, vol. 5(1), pages 1325117-132, January.
    35. Khurram Ashfaq & Zhang Rui, 2019. "The effect of board and audit committee effectiveness on internal control disclosure under different regulatory environments in South Asia," Journal of Financial Reporting and Accounting, Emerald Group Publishing Limited, vol. 17(2), pages 170-200, June.
    36. Blundell, Richard & Bond, Stephen, 1998. "Initial conditions and moment restrictions in dynamic panel data models," Journal of Econometrics, Elsevier, vol. 87(1), pages 115-143, August.
    37. Triana, María del Carmen & Richard, Orlando C. & Su, Weichieh, 2019. "Gender diversity in senior management, strategic change, and firm performance: Examining the mediating nature of strategic change in high tech firms," Research Policy, Elsevier, vol. 48(7), pages 1681-1693.
    38. Sila, Vathunyoo & Gonzalez, Angelica & Hagendorff, Jens, 2016. "Women on board: Does boardroom gender diversity affect firm risk?," Journal of Corporate Finance, Elsevier, vol. 36(C), pages 26-53.
    39. Nuria Reguera-Alvarado & Pilar Fuentes & Joaquina Laffarga, 2017. "Does Board Gender Diversity Influence Financial Performance? Evidence from Spain," Journal of Business Ethics, Springer, vol. 141(2), pages 337-350, March.
    40. Renée B. Adams & Patricia Funk, 2012. "Beyond the Glass Ceiling: Does Gender Matter?," Management Science, INFORMS, vol. 58(2), pages 219-235, February.
    41. Jeong†Bon Kim & Zheng Wang & Liandong Zhang, 2016. "CEO Overconfidence and Stock Price Crash Risk," Contemporary Accounting Research, John Wiley & Sons, vol. 33(4), pages 1720-1749, December.
    42. McGuinness, Paul B. & Vieito, João Paulo & Wang, Mingzhu, 2017. "The role of board gender and foreign ownership in the CSR performance of Chinese listed firms," Journal of Corporate Finance, Elsevier, vol. 42(C), pages 75-99.
    43. Jacob Brower & Pravin Nath, 2018. "Antecedents of market orientation: marketing CEOs, CMOs, and top management team marketing experience," Marketing Letters, Springer, vol. 29(4), pages 405-419, December.
    44. Christine A. Mallin & Giovanna Michelon, 2011. "Board reputation attributes and corporate social performance: an empirical investigation of the US Best Corporate Citizens," Accounting and Business Research, Taylor & Francis Journals, vol. 41(2), pages 119-144, June.
    45. Ho, Po-Hsin & Huang, Chia-Wei & Lin, Chih-Yung & Yen, Ju-Fang, 2016. "CEO overconfidence and financial crisis: Evidence from bank lending and leverage," Journal of Financial Economics, Elsevier, vol. 120(1), pages 194-209.
    46. Mohan, Nancy, 2014. "A review of the gender effect on pay, corporate performance and entry into top management," International Review of Economics & Finance, Elsevier, vol. 34(C), pages 41-51.
    47. Charles P. Cullinan & Lois Mahoney & Pamela B. Roush, 2019. "Directors & Corporate Social Responsibility: Joint Consideration of Director Gender and the Director’s Role," Social and Environmental Accountability Journal, Taylor & Francis Journals, vol. 39(2), pages 100-123, May.
    48. 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.
    49. Farzan Yahya & Zahiruddin B. Ghazali, 2017. "Effectiveness of board governance and dividend policy as alignment mechanisms to firm performance and CEO compensation," Cogent Business & Management, Taylor & Francis Journals, vol. 4(1), pages 1398124-139, January.
    50. Cristina Ciocirlan & Caroline Pettersson, 2012. "Does Workforce Diversity Matter in the Fight against Climate Change? An Analysis of Fortune 500 Companies," Corporate Social Responsibility and Environmental Management, John Wiley & Sons, vol. 19(1), pages 47-62, January.
    51. María‐Florencia Amorelli & Isabel‐María García‐Sánchez, 2020. "Critical mass of female directors, human capital, and stakeholder engagement by corporate social reporting," Corporate Social Responsibility and Environmental Management, John Wiley & Sons, vol. 27(1), pages 204-221, January.
    52. Ulrike Malmendier & Geoffrey Tate & Jon Yan, 2011. "Overconfidence and Early‐Life Experiences: The Effect of Managerial Traits on Corporate Financial Policies," Journal of Finance, American Finance Association, vol. 66(5), pages 1687-1733, October.
    53. Berchin, Issa Ibrahim & Nunes, Nei Antonio & de Amorim, Wellyngton Silva & Alves Zimmer, Gabriel Alfredo & da Silva, Franciani Rodrigues & Fornasari, Vitória Haendchen & Sima, Mihaela & de Andrade Gue, 2019. "The contributions of public policies for strengthening family farming and increasing food security: The case of Brazil," Land Use Policy, Elsevier, vol. 82(C), pages 573-584.
    54. Preeti Sharma & Priyanka Panday & R. C. Dangwal, 2020. "Determinants of environmental, social and corporate governance (ESG) disclosure: a study of Indian companies," International Journal of Disclosure and Governance, Palgrave Macmillan, vol. 17(4), pages 208-217, December.
    55. Hansen, Lars Peter & Singleton, Kenneth J, 1982. "Generalized Instrumental Variables Estimation of Nonlinear Rational Expectations Models," Econometrica, Econometric Society, vol. 50(5), pages 1269-1286, September.
    56. Wintoki, M. Babajide & Linck, James S. & Netter, Jeffry M., 2012. "Endogeneity and the dynamics of internal corporate governance," Journal of Financial Economics, Elsevier, vol. 105(3), pages 581-606.
    57. William Ocasio, 2011. "Attention to Attention," Organization Science, INFORMS, vol. 22(5), pages 1286-1296, October.
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