International Society of Dynamic Games

Dynamic Games and Applications Seminar

Insurance choices and emission taxation

February 1, 2024 11:00 AM — 12:00 PM (Montreal time)

Zoom webinar link

We analyze a duopoly composed of a clean and a dirty firm. The dirty one has to pay an emission tax. Both firms face a random loss that is a function of the dirty firm’s output. The firms can reduce the risk by stipulating an insurance contract and choosing a coinsurance rate. The game develops in three stages: 1) strategy selection, 2) output choices, 3) insurance decisions. We find that not only taxation but also insurance, under some conditions, can favor a green transition.

Dynamic Games and Applications Seminar

Multiplex networks: stability and opinion dynamics

January 25, 2024 11:00 AM — 12:00 PM (Montreal time)

Zoom webinar link

Interactions among agents or players in the society are usually performed in several layers, therefore, regular one-layer networks cannot properly describe the processes that can be observed in real-world networks. We examine the stability of multiplex networks when players interact in different layers and can reduce their costs of communication by creating connections with the same players in many layers. Then we examine how opinions are distributed in two-layer networks. We propose a general concealed voter model (GCVM), in which individuals interact in two layers and can exchange their opinions in the internal layer. By exchanging opinions in the internal layer, we mean that individuals share their real or internal opinions with their close friends. The process of opinion formation in GCVM is presented in the paper. We make a series of numerical simulations of GCVM with different network structures (both external and internal) and get some counterintuitive conclusions. 

(Joint work with Ziyu Ma and Chi Zhao)