Firm Leverage and Supplier Diversification

57 Pages Posted: 24 Jul 2018 Last revised: 5 Dec 2018

See all articles by Ben Charoenwong

Ben Charoenwong

National University of Singapore - Department of Finance

Date Written: December 4, 2018


Using a dataset of both public and private firm connections, I find a 1.5-percentage-point increase in long-term book leverage of a firm leads to a 10-percentage-point increase in the probability it adds an additional supplier. At the same time, I do not find significant increases in sales or accounts payable. The supplier diversification effect is slightly but not significantly larger for bigger firms and those in more concentrated industries and smaller for B2B firms and those with higher input specificity. These findings are consistent with firms simultaneously optimizing capital structure and supplier networks to trade-off disruption risks.

Keywords: Capital Structure, Supply Diversification, Supply Disruption, Credit Risk

JEL Classification: G24, G32, G33, L14, L22, L24

Suggested Citation

Charoenwong, Ben, Firm Leverage and Supplier Diversification (December 4, 2018). Available at SSRN: or

Ben Charoenwong (Contact Author)

National University of Singapore - Department of Finance ( email )

Mochtar Riady Building
15 Kent Ridge Drive
Singapore, 119245


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