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| Registros recuperados: 15 | |
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| Homans, Frances R.; Ruliffson, Jane A.. |
| Minimum size limits have become an increasingly popular management tool in recreational fisheries. This popularity stems from the potential of minimum size limits to accomplish the twin goals of limiting overfishing and improving fishing quality through increasing the average size of fish caught. The success of minimum size limits in achieving these objectives depends in a complicated way on both the behavior of anglers and the biological mechanisms that guide the growth of the fish population. This paper examines these relationships and also considers the welfare implications of size regulations. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1998 |
URL: http://purl.umn.edu/14500 |
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| Marshall, Elizabeth P.; Homans, Frances R.. |
| Most land management policies, such as land retirement, have multiple objectives. This study uses a cellular automata simulation model to explore how various spatial characteristics of land parcels on a hypothetical landscape contribute to the efficacy of land retirement in the presence of multiple retirement objectives- hydrological improvement, habitat improvement, and cost. Statistical analysis of the simulation results is used to tie particular spatial characteristics back to achievement of the three distinct objectives. In order to combine the three objectives into a measure that allows decision-makers to rank the desirability of different retirement strategies, linear and nonlinear goal programming frameworks are introduced. These frameworks are... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use. |
| Ano: 2001 |
URL: http://purl.umn.edu/20732 |
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| Homans, Frances R.; Wilen, James E.. |
| Using a new model of markets in regulated open access resources, we illustrate the evolution of a fishery as demand for the product grows. We show that increased demand for fish in its fresh form shortens the fishing season and leads to the development of a market for processed fish. The model allows us to calculate the rent gains from rationalizing the fishery, and we show that much of the rent gains come on the market side as the season lengthens and more fish can be delivered to the higher-valued fresh market. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/21878 |
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| Homans, Frances R.; Marshall, Elizabeth P.. |
| In this article, we introduce a recreational amenity—a greenbelt park—into a simple urban economic model. For multiple possible park placements, we solve for the associated equilibrium urban structure, including the equilibrium rent gradient, city boundary, total number of park visits, the overall utility level, and total vehicle miles traveled. We examine how these change with alternative park placement sites. We then show how two modifications of the basic model—allowing congestion at the site to affect site quality, and introducing the possibility of a substitute site at the city’s periphery—affect our conclusions about how greenbelt location influences urban structure. |
| Tipo: Journal Article |
Palavras-chave: Urban structure; Greenbelt; Congestion; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2008 |
URL: http://purl.umn.edu/45670 |
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| Horie, Tetsuya; Homans, Frances R.. |
| When it comes to invasive species management, economists have focused on the trade-off between prevention of potential invasions and management of established populations. The intermediate step-detection of established populations on the landscape so that management can commence-has only recently received attention in the economics literature. A recent paper (Mehta et al., 2007) explores how biological and economic parameters affect optimal detection spending, recognizing that greater expenditures on detection can lead to smaller and more manageable population sizes upon detection because populations are discovered early. We build upon this framework by considering the optimal spatial allocation of detection effort when it is impossible to stop the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/9695 |
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| Mathews, Leah Greden; Homans, Frances R.; Easter, K. William. |
| A mail survey was conducted in Minnesota in 1997 to estimate the value of reducing phosphorus levels in the Minnesota River by 40%. The general population survey of river basin residents was designed to gather information about respondents' use of the Minnesota River in addition to their valuation of a hypothetical water quality improvement program. An estimate of the value of a specific recreational site along the River, the Minnesota Valley National Wildlife Refuge, was also obtained. Three distinct models were estimated in this research. The first was a contingent valuation model estimating the willingness to pay (WTP) for water quality improvements in the Minnesota River using only stated preference data. There were two different payment vehicles... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 1999 |
URL: http://purl.umn.edu/13771 |
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| Marshall, Elizabeth P.; Homans, Frances R.. |
| In this paper, we use a simple urban economic model to study how choosing park locations within a city might contribute towards urban planning goals. For multiple possible park placements, we solve for the associated equilibrium urban structure, including the equilibrium rent gradient, city boundary, total number of park visits, the overall utility level, and total vehicle miles traveled. We then examine how these change with alternative park placement sites. We find that, as a prescription for reducing urban sprawl, park provision has mixed results. When placed close to the central business district, the park can result in an increase in inner city housing density; such placement could help ameliorate problems of commuter traffic congestion related to... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Community/Rural/Urban Development; Environmental Economics and Policy. |
| Ano: 2002 |
URL: http://purl.umn.edu/19610 |
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| Registros recuperados: 15 | |
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