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Peer-Review Record

A Quantitative Study of the Interactions between Oil Price and Renewable Energy Sources Stock Prices

Energies 2019, 12(9), 1693; https://doi.org/10.3390/en12091693
by Goran Dominioni 1, Alessandro Romano 2 and Chiara Sotis 3,*
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Energies 2019, 12(9), 1693; https://doi.org/10.3390/en12091693
Submission received: 3 April 2019 / Revised: 26 April 2019 / Accepted: 27 April 2019 / Published: 5 May 2019
(This article belongs to the Section C: Energy Economics and Policy)

Round 1

Reviewer 1 Report

Using an integrable nonautonomous Lotka-Volterra model, an innovative study of the relationship among oil and renewable energy stock prices is presented in this paper.

What indicators are represented in Figure 1 with distinct colors (red, yellow black, blue)?

Maybe the indicators used in the paper (NYSE Bloomberg Global Wind Energy Index, NYSE Bloomberg Global Solar Energy Index , NYSE Bloomberg Global Energy Smart Technologies Index, West Texas Intermediate ) could be detailed.

Also, a question: Have you considered that the one of the major structural break, that takes place in 2008, is caused by the global economic crisis that is taking place in the same year?

 

The paper requires only a few minor changes (see previous remarks).


Author Response

Please find the point-by-point response in the attached word file.

Author Response File: Author Response.docx

Reviewer 2 Report


It is very interesting paper study of the interactions between oil price and renewable energy sources stock prices. The Authors apply an Lotka-Volterra model to study the relationship among oil and renewable energy stock prices between 2006 and 2016.

Authors find that solar and wind proceeds in symbiosis between 2008 and 2013. The authors during the analysis state that the possible reasons behind these patterns and their policy implications. Paper shows the interaction coefficients of solar, wind, West Texas Intermediate and Global Energy Smart Technologies Index between 2006 and 2016. Paper shows also the lowering of cost of energy for wind and solar between 2009 and 2017.

The authors rightly suggested suggested that the research on the interaction between oil and renewable energy sources must be carried out with methods that allow researchers to capture changes in the interactions. Moreover, the effect of changes in oil prices on renewable indices is stronger than the effect of the renewable sources on the oil prices.

References items have been well chosen.

In my opinion the conclusion can be extended to make it easier for readers to understand.

Author Response

Please find out point-by-point reply to your comments in the attached word file.

Author Response File: Author Response.docx

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