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Liability Insurance and Choice of Cars: A Large Game Approach
Author(s) -
FLÅM SJUR DIDRIK,
WOLFSTETTER ELMAR G.
Publication year - 2015
Publication title -
journal of public economic theory
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.809
H-Index - 32
eISSN - 1467-9779
pISSN - 1097-3923
DOI - 10.1111/jpet.12116
Subject(s) - externality , incentive , liability , nash equilibrium , economics , automobile insurance , microeconomics , game theory , actuarial science , finance
If a car, already on the road, is replaced by another one, more expensive to collide with, a negative externality spills over to other drivers. This paper studies such externalities, relating them to insurance and incentives. It formalizes links from liability rules to choice of car. By assumption, insurance is cooperative but car acquisition is noncooperative. Construing drivers' interaction as a large game, the paper considers how a Nash equilibrium—and its efficiency or fairness—is shaped by the underlying liability regime.