Much of the guidance about potential impacts of reduce emissions from deforestation and degradation (REDD) speculates how efforts would be implemented and draws lessons from other mechanisms, such as payments for ecosystem services (PES). However, with few REDD activities underway, little...

This study deals with fisheries and trade, focusing on developing countries. Fish is globally traded, and for many developing countries, it is an important net export good. In most of these countries, fisheries are often characterized by poorly defined property rights, accompanied by...

A nation's natural-resources wealth can be estimated via the System of National Accounts (SNA). Because the values of all parameters entering the calculation are conditional on the existing management regime, the optimal value of the natural resources may be masked. This is the case for the...

At the initial stage of this project, the project group consisted of Asbjørn Aaheim, Magnus Hatlebakk and the authors. The authors are grateful for the discussion with the other project participants at this stage. We also had very useful discussion with the marine researcher Sigurd Tjelmeland...

Extraordinarily high returns in a sector based on the extraction of a natural resource can be referred to as resource rents. This study uses the National Accounts and the definitions of the System of Environmental-Economic Accounting to calculate the resource rents in Norwegian aquaculture in...

Lake Victoria fisheries are important to Tanzanian food security, employment, and foreign exchange, but they are experiencing declining performance largely due to overfishing. This paper studies technical efficiency and skipper skill using Tanzanian fishery data for the two major species, Nile...

Using South Africa’s hake and rock lobster fisheries as examples, this paper argues the need for satellite accounts of South Africa’s commercial fisheries. It stresses the policy role of satellite accounts, particularly where access to fish stocks is contested. Satellite accounts give all...

This paper analyzes the causes for regulatory compliance using traditional deterrence variables and potential moral and social variables. We used self-reported data from Tanzanian artisanal fishers in Lake Victoria. The results indicated that the decision to be a non-violator or to be a...

This paper analyses the effects of the invasion of water hyacinths on fishing in Lake Victoria. We built two fairly standard Schaefer-type models that have one innovation: they allow the water hyacinth abundance to affect catchability. We estimated static and dynamic CPUE (catch per unit of...

The illegal exploitation of wild abalone in South Africa has been escalating since 1994, despite increased enforcement, leading to collapse in some sections of its range. South Africa banned all wild abalone fishing in 2008 but controversially reopened it in 2010. This paper formulates a...