Bikramaditya Ghosh, Hayfa Kazouz, Ioannis Kostakis, Dimitrios Papadas
{"title":"可再生能源公司和相关商品在 Covid-19 爆发期间的量化关联度","authors":"Bikramaditya Ghosh, Hayfa Kazouz, Ioannis Kostakis, Dimitrios Papadas","doi":"10.1007/s10018-024-00410-7","DOIUrl":null,"url":null,"abstract":"<p>IMF indicated soaring metal prices, as cleantech firms are witnessing a meteoric rise in demand, and even dirty energy firms are changing their stance towards clean energy. Shock transmission (both positive and negative) is plausible as the world is chasing a net-zero emissions scenario. Therefore, we have investigated the top nine renewable energy companies globally with related metals (Nickel, Copper, Cobalt) from 3rd January 2017 to 3rd January 2022. This period also involves pre-Covid, Covid 1st Wave, Delta and Omicron. Our approach was QVAR, as suggested recently by Gabauer (J Multinatl Financ Manag 60:100680, 2021), which is a logical extension of the initial connectedness approach proposed by Diebold and Yilmaz (Int J Forecast 28(1): 57–66, 2012; J Econometr 182(1):119–134, 2014). We found several outcomes. Shock transmission is happening from both cleantech and dirty energy firms to metals. Connectedness (shock transmission) is increasing in tails. Moreover, connectedness in the lower upper quantiles is asymmetric, with clean energy companies tending to transmit positive shocks to metals. Therefore, mean-based connectedness could be ruled out. Metals such as Nickel, Cobalt, and Copper emerged as the net receivers of shocks. The firms with higher market capitalization producing clean energy emerged as significant net transmitters of shocks (Enphase, Orsted and VWS). The total Connectedness Indices (TCIs) are heterogeneous over time. TCI sharply increased immediately after Covid-19 fallout and remained at a relatively higher zone than pre-Covid levels. Wind energy firms (SSE and Orsted) emerged as the net transmitter among all pairwise directional connectedness; furthermost wind energy firms (SSE, ED and EDP) emerged as the moderate net receiver of shocks. This research provides many inputs towards the wind energy sector for researchers, practitioners and policymakers.</p>","PeriodicalId":46150,"journal":{"name":"Environmental Economics and Policy Studies","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Quantile connectedness in renewable energy companies and related commodities during Covid-19 outbreak\",\"authors\":\"Bikramaditya Ghosh, Hayfa Kazouz, Ioannis Kostakis, Dimitrios Papadas\",\"doi\":\"10.1007/s10018-024-00410-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>IMF indicated soaring metal prices, as cleantech firms are witnessing a meteoric rise in demand, and even dirty energy firms are changing their stance towards clean energy. Shock transmission (both positive and negative) is plausible as the world is chasing a net-zero emissions scenario. Therefore, we have investigated the top nine renewable energy companies globally with related metals (Nickel, Copper, Cobalt) from 3rd January 2017 to 3rd January 2022. This period also involves pre-Covid, Covid 1st Wave, Delta and Omicron. Our approach was QVAR, as suggested recently by Gabauer (J Multinatl Financ Manag 60:100680, 2021), which is a logical extension of the initial connectedness approach proposed by Diebold and Yilmaz (Int J Forecast 28(1): 57–66, 2012; J Econometr 182(1):119–134, 2014). We found several outcomes. Shock transmission is happening from both cleantech and dirty energy firms to metals. Connectedness (shock transmission) is increasing in tails. Moreover, connectedness in the lower upper quantiles is asymmetric, with clean energy companies tending to transmit positive shocks to metals. Therefore, mean-based connectedness could be ruled out. Metals such as Nickel, Cobalt, and Copper emerged as the net receivers of shocks. The firms with higher market capitalization producing clean energy emerged as significant net transmitters of shocks (Enphase, Orsted and VWS). The total Connectedness Indices (TCIs) are heterogeneous over time. TCI sharply increased immediately after Covid-19 fallout and remained at a relatively higher zone than pre-Covid levels. Wind energy firms (SSE and Orsted) emerged as the net transmitter among all pairwise directional connectedness; furthermost wind energy firms (SSE, ED and EDP) emerged as the moderate net receiver of shocks. This research provides many inputs towards the wind energy sector for researchers, practitioners and policymakers.</p>\",\"PeriodicalId\":46150,\"journal\":{\"name\":\"Environmental Economics and Policy Studies\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-08-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Economics and Policy Studies\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1007/s10018-024-00410-7\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ECONOMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Economics and Policy Studies","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s10018-024-00410-7","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECONOMICS","Score":null,"Total":0}
Quantile connectedness in renewable energy companies and related commodities during Covid-19 outbreak
IMF indicated soaring metal prices, as cleantech firms are witnessing a meteoric rise in demand, and even dirty energy firms are changing their stance towards clean energy. Shock transmission (both positive and negative) is plausible as the world is chasing a net-zero emissions scenario. Therefore, we have investigated the top nine renewable energy companies globally with related metals (Nickel, Copper, Cobalt) from 3rd January 2017 to 3rd January 2022. This period also involves pre-Covid, Covid 1st Wave, Delta and Omicron. Our approach was QVAR, as suggested recently by Gabauer (J Multinatl Financ Manag 60:100680, 2021), which is a logical extension of the initial connectedness approach proposed by Diebold and Yilmaz (Int J Forecast 28(1): 57–66, 2012; J Econometr 182(1):119–134, 2014). We found several outcomes. Shock transmission is happening from both cleantech and dirty energy firms to metals. Connectedness (shock transmission) is increasing in tails. Moreover, connectedness in the lower upper quantiles is asymmetric, with clean energy companies tending to transmit positive shocks to metals. Therefore, mean-based connectedness could be ruled out. Metals such as Nickel, Cobalt, and Copper emerged as the net receivers of shocks. The firms with higher market capitalization producing clean energy emerged as significant net transmitters of shocks (Enphase, Orsted and VWS). The total Connectedness Indices (TCIs) are heterogeneous over time. TCI sharply increased immediately after Covid-19 fallout and remained at a relatively higher zone than pre-Covid levels. Wind energy firms (SSE and Orsted) emerged as the net transmitter among all pairwise directional connectedness; furthermost wind energy firms (SSE, ED and EDP) emerged as the moderate net receiver of shocks. This research provides many inputs towards the wind energy sector for researchers, practitioners and policymakers.
期刊介绍:
As the official journal of the Society for Environmental Economics and Policy Studies and the official journal of the Asian Association of Environmental and Resource Economics, it provides an international forum for debates among diverse disciplines such as environmental economics, environmental policy studies, and related fields. The main purpose of the journal is twofold: to encourage (1) integration of theoretical studies and policy studies on environmental issues and (2) interdisciplinary works of environmental economics, environmental policy studies, and related fields on environmental issues. The journal also welcomes contributions from any discipline as long as they are consistent with the above stated aims and purposes, and encourages interaction beyond the traditional schools of thought.