http://www.efdinitiative.org The Environmental Economics Unit (EEU) at the University of Gothenburg is the Swedish node in the EfD network. The Environmental Economics Unit is the initiator of the EfD. The EEU manages the initiative and supports the EfD centers through the EfD Secretariat. daily 1 2007-10-02T15:00:42Z http://www.efdinitiative.org/research/publications/publications-repository/2018contribute-you-can-make-a-difference-2019 A nature field experiment and a choice experiment of the payment system of voluntary contribution. Evidence from Cahuita National Park in Costa Rica. No publisher karinbackteman Ida Hellmark och Anna Nordén, 2008, ‘Contribute! You can make a difference!’ A nature field experiment and a choice experiment of the payment system of voluntary contribution. Evidence from Cahuita National Park in Costa Rica. MSc Thesis, Department of Economics, University of Gothenburg. Experimental economics Tourism Public goods Park management 2008-09-01T12:01:03Z Article http://www.efdinitiative.org/research/publications/publications-repository/can-the-restrictive-harvest-period-policy-conserve-mopane-worms-in-southern-africa-a-bio-economic-modelling-approach Imbrasia Belina also known as the mopane worm, like other edible insects and caterpillars, is a vital source of protein to Southern African countries. The worms live and graze on mopane trees, which occupy agricultural land. With increasing commercialization of the worm, the management of the worm, which was hitherto organized as a common property resource, has degraded to a near open access. No publisher karinbackteman Akpalu, W., Muchapondwa, E. and P. Zikhali (2007). "Can the restrictive harvest period policy conserve mopane worms in Southern Africa? A bio-economic modeling approach" ERSA Working Paper 65 (October) Common pool resources Bioeconomic modelling Policy instruments 2008-05-12T13:34:57Z Article http://www.efdinitiative.org/research/publications/publications-repository/forest-cover-in-ethiopia-workshop-proceedings Proceedings of a policy workshop on Policies to increase forest cover in Ethiopia held on 18-19 September 2007 at Global Hotel, Addis Ababa, Ethiopia No publisher karinbackteman Deforestation Forest management 2008-03-10T13:14:44Z Article