Title
A New Game Of Information Sharing And Security Investment Between Two Allied Firms
Abstract
In consideration of business information sharing, this paper investigates a new game of information sharing and security investment between two allied firms. Firms' strategies in three decision models (Nash Equilibrium decision, partially centralised decision and totally centralised decision) are analysed. We provide some quantitative analyses on how some parameters affect firms' decisions in the three decision models. Our Nash Equilibrium analysis shows that when firms make decisions individually, they will share no information with each other. When information sharing is determined by a social planner, firms will share some information with each other, which increases the risk of information leakage. Thus, firms should increase their security investments to mitigate the higher information leakage risk. However, our analysis shows that instead of investing more in information security, firms will reduce their security investment, which will further aggravate the risk. Hence, a social planner is required to designate the security investments and information sharing levels for both firms. Our theoretical analysis shows that firms' strategies can achieve global optimality in the totally centralised decision model. Furthermore, a numerical experiment is conducted and the result demonstrates that totally centralised decision model is more efficient than the other two decision models. At last, we propose two compensation mechanisms to help firms coordinate their strategies when making decisions individually.
Year
DOI
Venue
2018
10.1080/00207543.2017.1400704
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
Keywords
DocType
Volume
information security investment, information sharing, IoT, Nash equilibrium, optimal solution, compensation mechanism
Journal
56
Issue
ISSN
Citations 
12
0020-7543
0
PageRank 
References 
Authors
0.34
34
6
Name
Order
Citations
PageRank
Xiaofei Qian1152.87
Xiaofei Qian2152.87
Xin-Bao Liu325426.14
Jun Pei420226.56
Jun Pei500.34
P. M. Pardalos626945.19