The potential for a backward-bending supply curve of non-timber forest products: An empirical case study of wild American ginseng production
| Autor: | Frey, Gregory E. a, ⁎, Chamberlain, James L. b, Prestemon, Jeffrey P. a |
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| Zdroj: | In Forest Policy and Economics December 2018 97:97-109 |
| Databáze: | ScienceDirect |
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