International environmental agreements with a stock pollutant, uncertainty and learning

Ulph, Alistair (2002) International environmental agreements with a stock pollutant, uncertainty and learning. Southampton, University of Southampton (Discussion Papers in Economics and Econometrics, 0207).


Download (338Kb)


I analyse how the possibility of future resolution of uncertainty about damage costs affects incentives to join a self-enforcing international environmental agreement. Unlike earlier literature, the model allows many countries, uses a solution concept which does not restrict the size of a stable IEA, and, since it is dynamic, analyses different membership rules: fixed (countries commit) or variable (countries decide each period whether to join). With fixed membership, learning yields at least as high membership and global welfare as no learning, unless both expected damage costs and uncertainty are high. With variable membership, learning leads to higher future membership but lower global welfare than no learning. Fixed membership leads to higher global welfare than variable membership if there are at least as many signatories who abate pollution in each period and state of the world as variable membership. This occurs for only 20% of parameter values with no learning and 2% with learning.

Item Type: Monograph (Discussion Paper)
Related URLs:
Subjects: H Social Sciences > HC Economic History and Conditions
J Political Science > JZ International relations
G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions : University Structure - Pre August 2011 > School of Social Sciences > Economics
ePrint ID: 33379
Accepted Date and Publication Date:
2002Made publicly available
Date Deposited: 18 May 2006
Last Modified: 31 Mar 2016 11:59

Actions (login required)

View Item View Item

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics