Journal
ANNALS OF OPERATIONS RESEARCH
Volume -, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1007/s10479-021-04452-y
Keywords
Green bonds; Clean energy market; Stock price; COVID-19 pandemic; TVP-VAR
Categories
Funding
- National Natural Science Foundation of China [71704098, 71971039, 72001191, 72003110]
- Natural Science Foundation of Henan Province [202300410442]
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This paper examines the dynamic nonlinear connectedness between green bonds, clean energy, and stock prices during the COVID-19 outbreak. The results show that the impact of clean energy on stock prices has increased over time, and green bonds have a positive effect on clean energy and stock prices especially after the COVID-19 outbreak.
This paper uses weekly data from July 01, 2011 to July 09, 2021 to examine the dynamic nonlinear connectedness between the green bonds, clean energy, and stock price around the COVID-19 outbreak in the global markets. By building a time-varying parameter vector autoregression model (TVP-VAR), the comparison analyses of pre- and during the COVID-19 sample groups verify the existence of nonlinear and dynamic correlation among the three variables. First, prior to the COVID-19 pandemic, the simultaneous impacts of clean energy on stock price increased over time. Second, the results of impulse responses at different horizons indicate that green bonds lead to a short-term increase of clean energy, and it exerts an increasingly positive impacts after the COVID-19 outbreak. The COVID-19 has weakened the negative impacts of green bonds on stock price in the medium term. Finally, through the analysis of impulse responses at different points, we find that stock prices will rise when clean energy is subjected to a positive shock, and this positive effect is stronger during economic recovery period than in the other two periods.
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