The structure and occurrence of debt-for-nature swaps are examined emp
irically. Contracts executing debt-for-nature swaps are studied to ass
ess the role of transaction costs in determining how these agreements
are structured. The emerging contract form is a product of weak enforc
ement of legal claims to environmental resources in developing countri
es, high costs for delineating and monitoring environmental outcomes,
and nominal government ownership of the resources involved. The occurr
ence of swaps in individual countries is significantly related to host
country attributes, including the presence of tropical land and threa
tened species, democratic political institutions, and large debt burde
ns.