The term structure of carbon premia

Fan Dora Xia and Omar Zulaica

No 1045, BIS Working Papers from Bank for International Settlements

Abstract: This paper explores a carbon premium – the extra yield investors demand to buy bonds issued by firms with more greenhouse gas emissions – in the US corporate bond market. We analyse a carbon premium along two channels, via panel regression. One is the preference channel, under which the premium reflects investors' preference for firms that they perceive as being more environmentally responsible, all else equal. The other is the risk channel, where investors perceive more carbon-intensive firms as more prone to default. We test the preference channel by investigating the relationship between corporate bond yields and carbon emissions, while controlling for the probability of default (PD) and other bond characteristics. We examine the risk channel by analysing how carbon emissions affect the PD. We validate the existence of carbon premia in both channels, with the premium being larger for firms in more energy-intensive sectors. Moreover, the premium differs across maturities, giving rise to a humpshaped term structure of carbon premia, reaching its highest level at the belly of the curve (maturities of 15–20 years). For instance, a 50% reduction in carbon emissions by an energy-intensive firm can reduce credit spread of a bond in the belly issued by the firm by over 10 basis points.

Keywords: climate change; carbon emissions; corporate bond spread; term structure. (search for similar items in EconPapers)
JEL-codes: G12 G30 Q54 (search for similar items in EconPapers)
Pages: 45 pages
Date: 2022-10
New Economics Papers: this item is included in nep-ene, nep-env and nep-ifn
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Citations: View citations in EconPapers (3)

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