SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Bergstrom, John C.; Boyle, Kevin J.; Yabe, Mitsuyasu.

The potential sensitivity of environmental resource valuation to payment vehicles is of interest to researchers and decision-makers involved in estimating and applying these numbers. A conceptual model is developed which provides insight into how the different payment vehicles of a special tax and a tax reallocation affects the willingness to pay (WTP) for environmental goods. Hypothesis testing using contingent valuation data suggests WTP with a tax reallocation is higher than WTP with a special tax for ground water quality protection in Georgia and Maine.

Principal Component Analysis of Crop Yield Response to Climate Change

Palavras-chave: Environmental Economics and Policy; Public Economics.

Ano: 2002

URL: http://purl.umn.edu/16700

Cai, Ruohong; Bergstrom, John C.; Mullen, Jeffrey D.; Wetzstein, Michael E.; Shurley, W. Donald.

The objective of this study is to compare the effects of climate change on crop yields across different regions. A Principal Component Regression (PCR) model is developed to estimate the historical relationships between weather and crop yields for corn, soybeans, cotton, and peanuts for several northern and southern U.S. states. Climate change projection data from three climate models are applied to the estimated PCR model to forecast crop yield response. Instead of directly using weather variables as predictor variables, the PCR model uses weather indices transformed from original weather variables by the Principal Component Analysis (PCA) approach. A climate change impact index (CCII) is developed to compare climate change effects across different...

A REVIEW OF ECOSYSTEM VALUATION TECHNIQUES

Palavras-chave: Principal component regression; Crop yield response; Climate change.; Crop Production/Industries.

Ano: 2011

URL: http://purl.umn.edu/103947

Carson, Rebecca M.; Bergstrom, John C..

Modeling Site Specific Heterogeneity in an On-Site Stratified Random Sample of Recreational Demand

Palavras-chave: Resource /Energy Economics and Policy.

Ano: 2003

URL: http://purl.umn.edu/16651

Sardana, Kavita; Bergstrom, John C..

Using estimation of demand for the George Washington/Jefferson National Forest as a case study, it is shown that in a stratified/clustered on-site sample, latent heterogeneity needs to be accounted for twice: first to account for dispersion in the data caused by unobservability of the process that results in low and high frequency visitors in the population, and second to capture unobservable heterogeneity among individuals surveyed at different sites according to a stratified random sample (site specific effects). It is shown that both of the parameters capturing latent heterogeneity are statistically significant. It is therefore claimed in this paper, that the model accounting for site-specific effects is superior to the model without such effects....

EFFECTS OF RESERVOIR AQUATIC PLANT MANAGEMENT ON RECREATIONAL EXPENDITURES AND REGIONAL ECONOMIC ACTIVITY

Palavras-chave: Recreational Demand models; Clustering; Subject-specific effects; Truncated Stratified Negative Binomial Model; Overdispersion; Environmental Economics and Policy.

Ano: 2011

URL: http://purl.umn.edu/103868

Bergstrom, John C.; Teasley, R. Jeff; Cordell, H. Ken; Souter, Ray A.; English, Donald B.K..

Exotic aquatic plant management is a major concern for public reservoir management in many regions of the United States. A study was conducted to measure the effects of alternative aquatic plant management strategies on recreational expenditures and regional economic activity. The study areas was Lake Guntersville, Alabama, and the local economy surrounding the lake. Lake Guntersville is one of the largest reservoirs in the Tennessee Valley Authority system. Results suggested the relatively moderate levels of aquatic plant control are associated with the highest levels of recreation-related economic effects on the economy surrounding Lake Guntersville.

Tipo: Journal Article

Palavras-chave: Aquatic plants; Input-output analysis; Public reservoir management; Recreational expenditures; Regional economic activity; Resource /Energy Economics and Policy.

Ano: 1996

URL: http://purl.umn.edu/15120

EXPLORING AND EXPANDING THE LANDSCAPE VALUES TERRAIN

Bergstrom, John C..

ESTUARY MANAGEMENT AND RECREATIONAL FISHING BENEFITS

Palavras-chave: Land Economics/Use.

Ano: 1998

URL: http://purl.umn.edu/16653

Bergstrom, John C.; Dorfman, Jeffrey H.; Loomis, John B..

Recognition of the benefits to society supported by estuary ecosystem functions and services, and threats to these benefits posed by human activities, has led to various public programs to restore and protect estuaries and the federal, state and local levels. As available budgets shrink, program administrators and public elected officials struggle to allocate limited restoration and protection funds to the highest priority areas. Economic benefit and cost information can provide useful inputs into this decision-making process by quantifying estuary restoration and protection benefits and costs in commensurate terms. In this paper, a combined actual and intended travel behavior model is described that can be applied to estimate the recreational fishing...

Wilderness and Primitive Area Recreation Participation and Consumption: An Examination of Demographic and Spatial Factors

Palavras-chave: Resource /Energy Economics and Policy.

Ano: 2003

URL: http://purl.umn.edu/16694

Bowker, James Michael; Murphy, D.; Cordell, H. Ken; English, Donald B.K.; Bergstrom, John C.; Starbuck, C. Meghan; Betz, Carter J.; Green, Gary T..

This paper explores the influence of demographic and spatial variables on individual participation and consumption of wildland area recreation. Data from the National Survey on Recreation and the Environment are combined with geographical information system-based distance measures to develop nonlinear regression models used to predict both participation and the number of days of participation in wilderness and primitive area recreation. The estimated models corroborate previous findings indicating that race (black), ethnicity (Hispanic), immigrant status, age, and urban dwelling are negatively correlated with wildland visitation, while income, gender (male), and education positively affect wildland recreation participation and use. The presence of a...

Tipo: Journal Article

Palavras-chave: Logistic; Negative binomial; Participation; Recreation; Visits; Wilderness; Environmental Economics and Policy; Land Economics/Use; Q21; Q26; Q24.

Ano: 2006

URL: http://purl.umn.edu/43765

U.S. State-Level Carbon Dioxide Emissions: A Spatial-Temporal Econometric Approach of the Environmental Kuznets Curve

Burnett, J. Wesley; Bergstrom, John C..

One of the major criticisms of past environmental Kuznets curve (EKC) studies is that the spatiotemporal aspects within the data have largely been ignored. By ignoring the spatial aspect of pollution emissions past estimates of the EKC implicitly assume that a region’s emissions are unaffected by events in neighboring regions (i.e., assume there are no transboundary pollution emissions between neighbors). By ignoring the spatial aspects within the data several past estimates of the EKC could have generated biased or inconsistent regression results. By ignoring the temporal aspect within the data several past estimates of the EKC could have generated spurious regression results or misspecified t and F statistics. To address this potential...

PREFACE: INTRODUCTION TO THE SPECIAL ISSUE

Palavras-chave: Environmental Kuznets Curve; Carbon Dioxide; Spatial Econometrics; Panel Data Econometrics; Time Series Analysis; Environmental Economics; Pollution Economics; Environmental Economics and Policy; Q50; Q53; Q43; C01; C33.

Ano: 2010

URL: http://purl.umn.edu/96031

Shulstad, Robert N.; Bergstrom, John C..

Tipo: Journal Article

Palavras-chave: Agricultural and Food Policy.

Ano: 2000

URL: http://purl.umn.edu/14703

Accounting for Geographic Heterogeneity in Recreation Demand Models

Sardana, Kavita; Bowker, James Michael; Bergstrom, John C.; Starbuck, C. Meghan; English, Donald B.K..

Spatial differences in site characteristics and user populations may result in heterogeneity of recreation preferences and values across geographic regions. Non-linear mixed effects models provide a potential means of accounting for this heterogeneity. This approach was tested by estimating a national-level recreation demand model with encouraging results.

A Pseudo-Sequential Choice Model for Valuing Multiple Environmental Policy or Program Components in Contingent Valuation Applications

Palavras-chave: Resource /Energy Economics and Policy.

Ano: 2008

URL: http://purl.umn.edu/6437

Volinskiy, Dmitriy; Bergstrom, John C.; Cornwell, Christopher M..

The study proposes a discrete-choice model for environmental policy/program valuation, to be used in cases when several policies are valued sequentially. The stochastic specification of the model is consistent with the transitivity and continuity axioms of utility analysis. An empirical methodology for the model is suggested. An application of this model to WTP estimation for Little Tennessee River watershed ecosystem restoration is provided. Findings from the application agree with the hypothesized agent's behavior.

INTEGRATION OF GEOGRAPHICAL INFORMATION SYSTEMS BASED SPATIAL ANALYSIS IN RECREATION DEMAND ANALYSIS

Palavras-chave: Environmental Economics and Policy.

Ano: 2005

URL: http://purl.umn.edu/19109

Bhat, Gajanan; Bergstrom, John C..

This study has examined the use of an Object-Oriented GIS framework to generate and analyze spatial data in recreation demand analysis. Several forms of GIS analysis are introduced and explained as how they can be utilized in recreational demand analysis. An application of GIS to calculate journey distance and duration has been illustrated with a case study of camping activities in Cherokee National Forest, North Carolina. The recreation demand models using these travel distance and duration are then compared with the models using respondent's stated values and models using distance data obtained from ZIPFIP software. Based on the criteria such as 2 statistic, individual coefficient significance, it is found out that travel cost functions based on...

A META ANALYSIS OF CONTINGENT VALUES FOR GROUNDWATER QUALITY IN THE UNITED STATES

Palavras-chave: GIS; Spatial Analysis; Recreation Demand; Travel Cost method; Demand and Price Analysis; Resource /Energy Economics and Policy.

Ano: 1996

URL: http://purl.umn.edu/16649

Poe, Gregory L.; Boyle, Kevin J.; Bergstrom, John C..

This paper provides an overview and a meta analysis of existing US contingent valuation studies of groundwater quality. Using 108 observations from 14 studies, core economic variables, risk variables, and elicitation effects are found to systematically influence groundwater values. Other research design features are also investigated.

Modeling Demand for Outdoor Recreation Settings with Choice Based Data Accounting for Exogenous and Endogenous Stratification

Palavras-chave: Resource /Energy Economics and Policy.

Ano: 2000

URL: http://purl.umn.edu/21871

Sardana, Kavita; Bowker, James Michael; Bergstrom, John C..

Estimating regional demand models by pooling different samples without correcting for such differences causes model misspecification as each sample belongs to a different population. Weighted regression using Pseudolikelihood to account for differences in sample population with adjustment for heteroskedasticity improves efficiency but the estimates are biased. We estimate regional demand for National Forest settings types in the southeastern states of U.S using weighted and unweighted regression. Using estimation of demand for National Forests as a case study, we resolve problems relating to inference about the data generating process when different samples are pooled together. We show that though efficiency of weighted estimates improves after correcting...

PROFILE OF PARTICIPANTS IN FISH AND WILDLIFE RELATED OUTDOOR RECREATIONAL ACTIVITIES IN THE UNITED STATES

Palavras-chave: Exogenous stratification; Endogenous stratification; Choice based data; Outdoor recreation; Environmental Economics and Policy; Q000; Q500.

Ano: 2010

URL: http://purl.umn.edu/61046

Cordell, H. Ken; Teasley, R. Jeff; Bergstrom, John C.; Thomas, Jeremy; Swanson, Cindy; McDonald, Barbara L..

Land Use Change and Ecosystem Valuation in North Georgia

Palavras-chave: Resource /Energy Economics and Policy.

Ano: 1997

URL: http://purl.umn.edu/16663

Ngugi, Daniel; Mullen, Jeffrey D.; Bergstrom, John C..

A model of land allocation at the aggregate watershed level was developed assuming profit/net benefit maximization under risk neutrality. The econometric land use model was analyzed as an equation by equation SURE model as all the independent variables were the same for both equations. In analyzing effect of land use change on water quality, we took year 2005 as our baseline and postulated three land use scenarios. We applied Benefit Transfer techniques to value water quality changes resulting from land use change and estimated lower bounds for WTP to improve water quality to meet the FCB criterion for drinking water supply and fishing waters and BOD (DO) criteria for fishing waters. Water quality modeling revealed that land use change would result in...

BENEFITS TRANSFER AND COUNT DATA TRAVEL COST MODELS: AN APPLICATION AND TEST OF A VARYING PARAMETER APPROACH WITH GUIDED WHITEWATER RAFTING

Palavras-chave: Ecosystem; Economic value; North Georgia; Land use; Land use change; Fish; Water quality; Structural time series; Willingness to pay; Benefit transfer; Forecasting; Vector autoregression; Upper Chattahoochee River; Environmental Economics and Policy; Land Economics/Use.

Ano: 2008

URL: http://purl.umn.edu/6119

Bowker, James Michael; English, Donald B.K.; Bergstrom, John C..

We combine currently popular count data methods with earlier work by Vaughan and Russell on varying parameter travel cost models to model trip demand and calculate consumer surplus. We test and reject the hypothesis that per trip consumer surplus from guided rafting is invariant to river characteristics. We then develop and test a series of benefit transfer functions against benefits derived from individual river models. Our findings suggest that this flexible form of count data model offers considerable promise as a benefit transfer function.

Land Use Change and Ecosystem Valuation in North Georgia

Palavras-chave: Benefits transfer; Whitewater rafting; Travel cost; Count data models; Varying parameters; Resource /Energy Economics and Policy.

Ano: 1997

URL: http://purl.umn.edu/16703

Ngugi, Daniel; Mullen, Jeffrey D.; Bergstrom, John C..

This study seeks to forecast land use change in a North Georgia ecosystem, and estimate the economic value of the ecosystem using benefit transfer techniques. We forecast land use change based on a structural time series model and a simple growth rate model. The study suggests a lower bound willingness to pay value of about USD 16,000 per year to ensure compliance with fishing and drinking water quality standards with regard to fecal coliform bacteria and dissolved oxygen. Conservation efforts are likely to cost less than the cost of defensive behavior or ecosystem restoration.

OUTDOOR RECREATION TRENDS AND MARKET OPPORTUNITIES IN THE UNITED STATES

Palavras-chave: Ecosystem; Economic value; North Georgia; Land use; Water quality; Structural time series; Benefit transfer; Forecasting.; Environmental Economics and Policy; Land Economics/Use; Q51; Q53; Q57.

Ano: 2009

URL: http://purl.umn.edu/46853

Cordell, H. Ken; McDonald, Barbara L.; Briggs, J. Alden; Teasley, R. Jeff; Biesterfeldt, Robert; Bergstrom, John C.; Mou, Shela H..

In 1994 and 1995, the National Survey of Recreation and Environment (NSRE) was accomplished by interviewing approximately 17,000 Americans over age 15 in random-digit-dialing telephone samplings. The primary purpose was to learn about the outdoor recreation activities of people over age 15 in the United States. They were asked about their participation in 62 specific recreation activities.