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| Berck, Peter; Costello, Christopher; Fortmann, Louise; Hoffmann, Sandra A.. |
| One of the most controversial aspects of federal and state policies aimed at protecting old-growth ecosystems has been the potential impact of job losses on local economies. A fundamental question for historically timber-dependent communities is whether these policies will result in local economic stagnation and enduring pockets of poverty. In this paper, we examine the long-run impact of changes in timber-related employment on other types of employment and participation in major federal poverty programs. We use monthly, multi-county time series data to estimate a vector autoregressive model of the experience of northern California counties during the 1980s and 1990s. We find that employment base multiplier effects of timber employment on other types of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Forest policy; Poverty; Employment; Time series; Food Security and Poverty; Q23; O15; R11; R15. |
| Ano: 2000 |
URL: http://purl.umn.edu/10831 |
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| Karp, Larry S.; Costello, Christopher. |
| We study the optimal quota sequence, in a stationary environment, where a regulator and a non-strategic firm have asymmetric information, The regulator is able to learn about the unknown cost parameter by using a quota that is slack with positive probability, It is never optimal for the regulator to learn gradually, In the first period, he either ignores the possibility of learning, or he tries to improve his information, Regardless of the outcome in the first period, he never experiments in subsequent periods. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Quotas; Asymmetric information; Searching; International Relations/Trade; D83; L50. |
| Ano: 2000 |
URL: http://purl.umn.edu/6245 |
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| Sethi, Gautam; Costello, Christopher; Fisher, Anthony C.; Hanemann, W. Michael; Karp, Larry S.. |
| Among others who point to environmental variability and managerial uncertainty as causes of fishery collapse, Roughgarden and Smith (1996) argue that three sources of uncertainty are important for fisheries management: variability in fish dynamics, inaccurate stock size estimates, and inaccurate implementation of harvest quotas. We develop a bioeconomic model with these three sources of uncertainty, and solve for optimal escapement based on measurements of fish stock in a discrete-time model. Among other results we find: (1) when uncertainties are high, we generally reject the constant-escapement rule advocated in much of the existing literature, (2) inaccurate stock estimation affects policy in a fundamentally different way than the other sources of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/25117 |
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| Berck, Peter; Costello, Christopher. |
| Rent dissipation in open access fisheries is a well studied problem (Gordon 1954; Homans and Wilen 1997). Regulation is seen as a possibly remedy to the externality of entry, which eventually leads to zero profits and depressed stocks. Despite regulation, drastic declines have occurred in many regulated fisheries worldwide, prompting a discussion of economic, biological, and environmental phenomena that may lead to declines. We explore one case when a regulator permits overfishing in the context of a traditional fishery model. Influenced by industry to reduce effort restrictions, regulators often rely on gear, season length, and other efficiency restrictions to achieve management goals. Under standard assumptions we find that when the regulator is... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Fisheries; Harvesting; Management; Regulations; Agribusiness. |
| Ano: 2000 |
URL: http://purl.umn.edu/43915 |
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