Peng, Ling
Kloeden, Peter E.
Article History
Received: 4 March 2021
Accepted: 29 October 2021
First Online: 22 November 2021
Declarations
:
: The authors have no conflicts of interest. Since this paper did not rely upon empirical estimation, we did not use any data. All figures are representations of our solutions, whose derivation can be found in appendices. The first author designed the model, while the second author assisted with the preparation of the paper .