Abstract

Journal of Actuarial Practice

Volume 9, Numbers 1 and 2, 2001


Controlling the Solvency Interaction Among a Group of Insurance Companies

Alexandros Zimbidis and Steven Haberman

Abstract

Pooling of risks is an efficient risk management technique used by large employee benefit schemes of multinational companies to self-insure their retirement and other benefit obligations. This technique forms a basis for formulating a general control theoretic model for the interaction between insurance companies within a pooling network. The objective of these insurance companies is to avoid insolvency yet maintain stable premium and surplus processes. A general control system of equations that is used as a model for the interaction of m insurance companies within the network is first analyzed. An analytic solution is provided. Questions concerning the stability and optimal parameter design  for the system are investigated. The special case of two identical companies is analyzed in detail.

Key words and phrases: control theory, self-insurance, pooling, stability, optimal parameter design, feedback mechanism.

Corresponding Author:

Steven Haberman

Department of Actuarial Science and Statistics

City University

London EC1V 0HB

UNITED KINGDOM


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